Re: Interrogating JRun

[Ben Groeneveld]

Howard,

I think you can get at port info using the regular servlet API, but JRun 
provides for quite a bit of internal info using its JMX interface which 
you can review in the admin manual.It is very cute with an HTML front 
end. 

Hope that helps, BenG.

[EMAIL PROTECTED] wrote:

 Hey,

 Does anyone know how to programmatically interrogate JRun for the list
 of defined servers and related information (ports, server status)
 without using the admin server? Basically, all the information
 available from the first screen of the admin server or the Java admin
 app. I am trying to write an rudimentary admin interface for OS X and
 it would be nice to tell the user what port the servers are on.
 Thanks.


 --
 Howard Fore, [EMAIL PROTECTED]

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response.setHeader(connection: close) with IIS becomes Keep-Alive

[Ben Groeneveld]

In response to an HTTP POST I am performing a

response.setHeader(Connection, close);

My JRun4 is configured with IIS.I think this used to work, but perhaps 
something else has changed (did browsers always use Keep-Alive on 
POSTs?).It is currently not working - for a couple months now, and IIS 
overrides this with a Connection: Keep-Alive - which is what the 
browser requests.Browser (IE and NS) requests are coming into my 
server as POSTs, and their connections are staying open and not 
closing.This creates a problem for my application in situations where 
IE or NS only want to have two concurrent socket connections open - I am 
using one of those two for a dedicated, persistent connection on a 
custom app. 

If I configure JRun to run using it's webservice and bypass IIS my app 
runs as designed.

I have used the sniffer program provided with JRun to verify that the 
setHeader() call is not working.

Help or pointers would be appreciated to make this call work with the 
JRun connector for IIS. 

Thanks, BenG.
--
Ben Groeneveld,
bgroeneveld [at] communicast [dot] com
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Re: Invalidating a session with Jrun SessionService

[Ben Groeneveld]

Nice when it works :)

BenG.

[EMAIL PROTECTED] wrote:

  Gavin, you might try registering each user's session reference in
  an
  object accessible to the admin so that he/she can peruse and act on
  them
  using session.invalidate().Hope that helps, BenG.
  
  [EMAIL PROTECTED] wrote:
  
  
  Ben, Jeff,
 
  Thanks for the responses. I will try the approach of registering the
  sessions with an object acessible by the admin.

 Ben, Jeff,

 Just FYI ...That worked. Thanks for the help.
 I'm still ironing out a couple of issues clustering issues with it. 
 For some reason if you update or invalidate another user's session the 
 changes do not get replicated to the buddy machine(s) in the cluster.

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Re: Invalidating a session with Jrun SessionService

[Ben Groeneveld]

Gavin, I am not familiar with that approach.As an alternative, you may 
try session.invalidate() - I use it frequently.Hope that helps, BenG.

[EMAIL PROTECTED] wrote:

 I am trying to write a servlet that enables an administrator to 
 invalidate a user's session. I am using the SessionService class to 
 access the user's session. However I keep getting null pointer 
 exceptions on the relevant methods.

 I instantiated a SessionService object:
 SessionService sessionSrvc = new SessionService();

 Then I tried invoking the following methods , all of which returned 
 null pointer exceptions:

 sessionSrvc.invalidateSession(SessionID);
 HttpSession sessionToDelete = sessionSrvc.findSession(SessionID);
 ArrayList sessionList = sessionSrvc.getSessions();

 Similar functionality was deprecated and removed from the java api for 
 security reasons. Does anyone know if this has been disabled in the 
 jrun api? Alternatively, does anyone know of another way to disable a 
 particular user's session?

 Thanks for any help.

 Gavin

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Re: Invalidating a session with Jrun SessionService

[Ben Groeneveld]

Gavin, you might try registering each user's session reference in an 
object accessible to the admin so that he/she can peruse and act on them 
using session.invalidate().Hope that helps, BenG.

[EMAIL PROTECTED] wrote:

 session.invalidate(); only invalidates the client session.The container
 assumes the sessionid is the same for that client only and the server will
 invalidate THAT client¹s session only...no other sessions will be touched.

 I think what this person is trying to do is have another client able 
 to see
 all active sessions on a certain application and invalidate them.In 
 other
 words, the administrator can OEboot¹ someone off the application much 
 in the
 same way a chat room administrator can boot some one off a channel.

 With that said, I don¹t know the actual answer to this question, but just
 calling session.invalidate() isn¹t going to solve this person¹s problem.

 On 5/13/04 12:30 PM, Ben Groeneveld [EMAIL PROTECTED] wrote:

  Gavin, I am not familiar with that approach.As an alternative, you may
  try session.invalidate() - I use it frequently.Hope that helps, BenG.
 
  [EMAIL PROTECTED] wrote:
 
   I am trying to write a servlet that enables an administrator to
   invalidate a user's session. I am using the SessionService class to
   access the user's session. However I keep getting null pointer
   exceptions on the relevant methods.
  
   I instantiated a SessionService object:
   SessionService sessionSrvc = new SessionService();
  
   Then I tried invoking the following methods , all of which returned
   null pointer exceptions:
  
   sessionSrvc.invalidateSession(SessionID);
   HttpSession sessionToDelete = sessionSrvc.findSession(SessionID);
   ArrayList sessionList = sessionSrvc.getSessions();
  
   Similar functionality was deprecated and removed from the java 
 api for
   security reasons. Does anyone know if this has been disabled in the
   jrun api? Alternatively, does anyone know of another way to disable a
   particular user's session?
  
   Thanks for any help.
  
   Gavin
  
 
 

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Re: JRUN Stability- reply 2

[Ben Groeneveld]

Kathy, we run primarily on windows.I have done some tests on linux, 
but not to this extent.

Our app uses keepalive connections that remain open, so we need a very 
high level of concurrency.In production we run at 750 concurrent 
connections (users) per node.The JRun server doesn't seem to 
pre-allocate the threads, so they remain upper limits.We also run with 
a non-sanctioned patch provided by macromedia folks, because regular 
JRun will get stuck at 1000 activeHandlerThreads.They gave me the 
patch, but in followup email have been quiet to answer my request for 
info on when the change would be incorporated into the base code.I was 
working with someone by the name of Stephen Dupre last August; he was 
most helpful.

Using the patch we have tested just beyond 1800 in our lab with the IBM 
jvm and 1700 with the sun jvm, before we run into memory management 
problems.We use the following jvm args now with sun 1.4:

-Xms128m -Xmx128m -Xss64k

In order to use such high settinmgs you also need to adjust your web 
server because by default they don't permit such high levels of 
concurrency either - I assume as a precaution against DOS attacks.So 
you have to adjust your Apache or IIS settings.

If I recall my experiments properly, the jvm on windows is limited to 
2048 threads, so to get beyond that on a single machine you need to have 
multiple vm's.So, I put several JRun servers under IIS, but then I 
started to run up against some upper limits of IIS.I never got further 
than 4000 concurrent connections for a single win2k box with 1 cpu, and 
that was with three JRun servers under IIS.

Hope that helps, BenG.

[EMAIL PROTECTED] wrote:

 Ben,

 How is the stability and performance of JRun server
 after you set activeHandlerThreads to 2000? Usually
 the number of the maxHandlerThreads should be bigger
 than activeHandlerThreads? As I understand, JRun would
 not perform well if the number of activeHandlerThreads
 is too big. Could you share your experience here? How
 busy would the traffic be on your site and is your
 site running in UNIX box? Thanks.

 Kathy

 --- Ben Groeneveld [EMAIL PROTECTED] wrote:
  This is true; to achieve high levels of concurrency
  we run with
 
  attribute
  name=activeHandlerThreads2000/attribute
 
  attribute name=maxHandlerThreads2000/attribute
 
 
  Hope that helps, BenG.
 
  [EMAIL PROTECTED] wrote:
 
   Thanks for the advice!..
  
   I have Metrics turned on currently, monitoring
  every 20 seconds, and I get
   0/0, 0 Sessions..
  
   It does specifically say Web-Threads so, I looked
  for an additional
   setting
   for the proxy, (as we're using the JRUN connector
  via IIS on another
   server)
   but that was the only metrics option in the
  jrun.xml file.
  
   ~ Jon
  
   -Original Message-
   From: Kathy Vance [mailto:[EMAIL PROTECTED]
  
   Jon,
  
   I have the same problem while I did loading
  testing on
   JRun 4. We spent $500 for macromedia tech support
  in
   order to solve the issue.
  
   Please check your jrun.xml. There is a service
  called
   ProxyService. You need to increase the value of
  the
   attribute named activeHandlerThreads to a number
   based on how busy your app is. I remember the
  default
   value is 15.
  
   Also, You can turn on Metrics logging to decide
  how
   many threads you need.
  
   Sometimes you could get the same error mentioned
  while
   using jsp forward tag. But I believe that Updater
  3
   may solve forwarding issue on JRun 4.
  
   for your info,
  
   Kathy
  
  
   --- Jon Austin [EMAIL PROTECTED] wrote:
Thanks to all for their input on this topic,
   
I am getting more resource directed to this in
  the
next day or, so, and will
be running through some of the troubleshooting
  tips
given here.
   
I understand that many of you are running
successfully, with many concurrent
users, the question now, I have for those
  people, is
what kind of scope is
your application?
   
Are we simply talking glorified web-sites with a
little processing behind
them, or are we talking full hard-code business
applications.
   
Our application falls heavily on the latter, and
before I base conclusions
on other peoples abilities to produce results
  under
this environment, I want
to be sure that we're in the same ballpark.
   
   
One error which a user did capture during a
server-halt the other day, was :
   
Too many concurrent requests,
jcp.endpoint.main.max.threads exceeded.
   
I found documents on how to resolve this on
  JRUN3..
but none of the files
that are referenced in that document, exist on
  my
JRUN4 implimenation.Does
anyone know where I can find the new settings
  fro
JRUN4.
   
Thanks
   
~ Jon
   
   
   
  
 
 

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Re: JRUN Stability- reply 2

[Ben Groeneveld]

[EMAIL PROTECTED] wrote:

 Hi Ben,


 You have to admit we were in some unexplored territory with that hotfix
 patch.(it's still being discussed).


 I don't think this applies to the general server hung issue Jon 
 originally
 posted which is best handled by some of the debugging techniques mentioned
 by others (stack trace, etc) without changing the environment (JVMs, 
 etc).


 Your app is very unique.It actually can have 750 concurrent,
 ACTIVE/RUNNING threads which doesn't resemble the typical web app of 10-20
 possible request threads with maybe 5-10 active at any one time and
 constantly changing.I'm frankly amazed that you were able to tune it so
 well with JRun and find all those outer limitations of JVMs, etc that you
 mention.

Well of course that is the beauty of our profession - we are all writing 
unique apps.I hope you didn't find this email on a negative note.I 
am most appreciative of your help.It's just the absense of a response 
that puzzled me.Thanks, BenG.




 Stephen Dupre
 Macromedia QA

 -Original Message-
 From: Ben Groeneveld [mailto:[EMAIL PROTECTED]
 Sent: Wednesday, April 14, 2004 1:12 PM
 To: JRun-Talk
 Subject: Re: JRUN Stability- reply 2

 Kathy, we run primarily on windows.I have done some tests on linux,
 but not to this extent.

 Our app uses keepalive connections that remain open, so we need a very
 high level of concurrency.In production we run at 750 concurrent
 connections (users) per node.The JRun server doesn't seem to
 pre-allocate the threads, so they remain upper limits.We also run with
 a non-sanctioned patch provided by macromedia folks, because regular
 JRun will get stuck at 1000 activeHandlerThreads.They gave me the
 patch, but in followup email have been quiet to answer my request for
 info on when the change would be incorporated into the base code.I was
 working with someone by the name of Stephen Dupre last August; he was
 most helpful.

 Using the patch we have tested just beyond 1800 in our lab with the IBM
 jvm and 1700 with the sun jvm, before we run into memory management
 problems.We use the following jvm args now with sun 1.4:

 -Xms128m -Xmx128m -Xss64k

 In order to use such high settinmgs you also need to adjust your web
 server because by default they don't permit such high levels of
 concurrency either - I assume as a precaution against DOS attacks.So
 you have to adjust your Apache or IIS settings.

 If I recall my experiments properly, the jvm on windows is limited to
 2048 threads, so to get beyond that on a single machine you need to have
 multiple vm's.So, I put several JRun servers under IIS, but then I
 started to run up against some upper limits of IIS.I never got further
 than 4000 concurrent connections for a single win2k box with 1 cpu, and
 that was with three JRun servers under IIS.

 Hope that helps, BenG.

 [EMAIL PROTECTED] wrote:

  Ben,
 
  How is the stability and performance of JRun server
  after you set activeHandlerThreads to 2000? Usually
  the number of the maxHandlerThreads should be bigger
  than activeHandlerThreads? As I understand, JRun would
  not perform well if the number of activeHandlerThreads
  is too big. Could you share your experience here? How
  busy would the traffic be on your site and is your
  site running in UNIX box? Thanks.
 
  Kathy
 
  --- Ben Groeneveld [EMAIL PROTECTED] wrote:
   This is true; to achieve high levels of concurrency
   we run with
  
   attribute
   name=activeHandlerThreads2000/attribute
  
   attribute name=maxHandlerThreads2000/attribute
  
  
   Hope that helps, BenG.
  
   [EMAIL PROTECTED] wrote:
  
Thanks for the advice!..
   
I have Metrics turned on currently, monitoring
   every 20 seconds, and I get
0/0, 0 Sessions..
   
It does specifically say Web-Threads so, I looked
   for an additional
setting
for the proxy, (as we're using the JRUN connector
   via IIS on another
server)
but that was the only metrics option in the
   jrun.xml file.
   
~ Jon
   
-Original Message-
From: Kathy Vance [mailto:[EMAIL PROTECTED]
   
Jon,
   
I have the same problem while I did loading
   testing on
JRun 4. We spent $500 for macromedia tech support
   in
order to solve the issue.
   
Please check your jrun.xml. There is a service
   called
ProxyService. You need to increase the value of
   the
attribute named activeHandlerThreads to a number
based on how busy your app is. I remember the
   default
value is 15.
   
Also, You can turn on Metrics logging to decide
   how
many threads you need.
   
Sometimes you could get the same error mentioned
   while
using jsp forward tag. But I believe that Updater
   3
may solve forwarding issue on JRun 4.
   
for your info,
   
Kathy
   
   
--- Jon Austin [EMAIL PROTECTED] wrote:
 Thanks to all for their input on this topic,

 I am getting more resource directed to this in
   the
 next day or, so

Re: JRUN Stability- reply

[Ben Groeneveld]

This is true; to achieve high levels of concurrency we run with

attribute name=activeHandlerThreads2000/attribute

attribute name=maxHandlerThreads2000/attribute

Hope that helps, BenG.

[EMAIL PROTECTED] wrote:

 Thanks for the advice!..

 I have Metrics turned on currently, monitoring every 20 seconds, and I get
 0/0, 0 Sessions..

 It does specifically say Web-Threads so, I looked for an additional 
 setting
 for the proxy, (as we're using the JRUN connector via IIS on another 
 server)
 but that was the only metrics option in the jrun.xml file.

 ~ Jon

 -Original Message-
 From: Kathy Vance [mailto:[EMAIL PROTECTED]

 Jon,

 I have the same problem while I did loading testing on
 JRun 4. We spent $500 for macromedia tech support in
 order to solve the issue.

 Please check your jrun.xml. There is a service called
 ProxyService. You need to increase the value of the
 attribute named activeHandlerThreads to a number
 based on how busy your app is. I remember the default
 value is 15.

 Also, You can turn on Metrics logging to decide how
 many threads you need.

 Sometimes you could get the same error mentioned while
 using jsp forward tag. But I believe that Updater 3
 may solve forwarding issue on JRun 4.

 for your info,

 Kathy


 --- Jon Austin [EMAIL PROTECTED] wrote:
  Thanks to all for their input on this topic,
 
  I am getting more resource directed to this in the
  next day or, so, and will
  be running through some of the troubleshooting tips
  given here.
 
  I understand that many of you are running
  successfully, with many concurrent
  users, the question now, I have for those people, is
  what kind of scope is
  your application?
 
  Are we simply talking glorified web-sites with a
  little processing behind
  them, or are we talking full hard-code business
  applications.
 
  Our application falls heavily on the latter, and
  before I base conclusions
  on other peoples abilities to produce results under
  this environment, I want
  to be sure that we're in the same ballpark.
 
 
  One error which a user did capture during a
  server-halt the other day, was :
 
  Too many concurrent requests,
  jcp.endpoint.main.max.threads exceeded.
 
  I found documents on how to resolve this on JRUN3..
  but none of the files
  that are referenced in that document, exist on my
  JRUN4 implimenation.Does
  anyone know where I can find the new settings fro
  JRUN4.
 
  Thanks
 
  ~ Jon
 
 
 

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Re: JRUN Stability

[Ben Groeneveld]

We run JRun4 with CFMX on win2k in a cluster supporting 1000s of 
concurrent users and it's quite reliable, believe me.Thanks, BenG.

[EMAIL PROTECTED] wrote:

 The server in questions is windows 2000, SP4.

 We're using the Server version (/jrun4)and we're connecting to an Oracle
 backend.

 We're on JRUN Updater 3, and we've been running this configuration without
 issue, for about 6 months now.

 The problem appears to be load-based.. We usually don't have over 5 people
 on the server, developers are running their own local servers, so the
 database is already used to the load..

 I'll look into the stack trace, but I do have to co-ordinate several very
 busy people, in order to get the load on the server, so I'm not sure when
 I'll be able to do that yet.

 Thanks,

 ~ Jon

 -Original Message-
 From: Stephen Dupre [mailto:[EMAIL PROTECTED]

 Did you try to get a stack trace when this was happening? (technote 
 18339 on
 www.macromedia.com http://www.macromedia.com )

 What platform are you running on?

 Are you using the server version (/jrun4) or the standalone (/cfusionmx).

 What backend are you connecting to?

 Have you applied any patches (hotfixes, new database drivers, etc).

 I'd not ready to finger your code until we look at knownissues that 
 might
 cause CPU spikes (environment-related, patches, etc).

 Stephen Dupre
 Macromedia QA

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
 Sent: Friday, April 09, 2004 12:19 AM
 To: JRun-Talk
 Subject: JRUN Stability

 I'm having an issue on a CFMX / JRUN server, when we get around 14
 simultaneous users, running an average sized lookup, our CPU spikes,
 our memory dives, and JRUN bites the dust.

 I've tried this on a single processor, 512mb machine, and it survived
 the load for approx 10-15 minutes.

 I switched to another server with 2 CPU's, and 1gb of ram, and it died
 in 5 minutes..That server did have two CFMX JRUN server instances on
 it however. Only one was in active use though, the other was
 running, but with no connections.

 Both machines were tested multiple times, and the same behavior
 continued.

 Does anyone have any tuning suggestions, or alternative's like porting
 our app to run off JBOSS?

 TIA,

 ~ Jon
_

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Re: Anyone on this list

[Ben Groeneveld]

Yes, to JRun's credit I hope. We run JRun4 for all kinds of apps and it 
just works fine.BenG.

Michael Dinowitz wrote:

 There are actually quite a number of people on the list (I weed out 
 the bad addresses). Problem is, its not very active.

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Re: JRun mysteriously crashing, strange errors in Apache

[Ben Groeneveld]

Richard, that's pretty much it then, except that you can create a custom 
logger to catch stdout and stderr if you want; refer to the manuals for 
that. 

You can usually tell if JRun shutdown or got torched.On a graceful 
shutdown, the destroy methods of servlets will be invoked, including the 
builtin JRun servlets, and they log misc things.

If you are running from the console, and JRun looks like it's dead, but 
perhaps overloaded as you describe below, you can examine the threads 
with Ctrl-Break w/o affecting processing to get an idea of where it's stuck.

Hope that helps, BenG.

Richard Crawford wrote:

 Ben Groeneveld wrote:

  Rchard, I'm not sure by what you mean to say in that logging is always
  on, and println() for System.out and System.err will go to stdout and
  stderr, so I suspect that if you redirect them you will capture them.
  All other logging should be in JRun4/logs.Does that make sense?BenG.

 I can see that if I ran JRun from the command line, with something like
  errorlog, then the error messages will be captured and written to a
 file.I just wish there were a way to retrieve all of those errors that
 are missing from the jrun/log files.The log files I have show no
 reason why JRun should have crashed last Thursday.

 Although based on discussions I've had, it looks like JRun didn't crash
 completely; it just seems to have slowed down to such a sluggish pace
 that connections were timing out.I don't understand this at all myself.

 For what it's worth, here's the system information, which I should have
 included earlier:

 HOST SYSTEM: Solaris 9
 JRUN VERSION: 4 (with updater 3 applied)
 CF VERSION: MX (with updater 2 applied)
 APACHE VERSION: 2.0.45
 DATABASE: SQL Server 7, on a separate WinNT machine

 JRun, Apache, and Cold Fusion all live on the same Solaris 9 box.

 We are in the process of upgrading our SQL Server database to Oracle 9i
 (and you don't want to know how much of a nightmare that has been).

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Re: JRun mysteriously crashing, strange errors in Apache

[Ben Groeneveld]

I believe that you might find more logging info if you run from the 
command line and redirect stdout and stderr to a file.With JRun3 these 
used to be captured in a separate log files, but with JRun4 this is no 
longer the default.I do believe that the documentation talks about how 
to setup such logging, though.Hope this helps, BenG.

Skip Klobucher wrote:

 With the JRun server shutdown during this time, you'd see errors on the
 Apache side without corresponding errors on the JRun side (Apache was
 fielding and forwarding requests to JRun, but JRun wasn't running and 
 wasn't
 logging problems).The only way to determine what happened relative 
 to JRun
 is to look at the log files for each JRun server - not just the event log
 but also the err and out files too.If they don't contain any 
 information,
 then it will be difficult to tell.Does JRun run on the same machine as
 Apache, or are they distributed?Are there any system-level log files
 available (like Event Viewer on Windows) that might provide additional
 information about what happened?Thanks.


 Skip

 -Original Message-
 From: Richard Crawford [mailto:[EMAIL PROTECTED]
 Sent: Tuesday, December 02, 2003 1:50 PM
 To: JRun-Talk
 Subject: JRun mysteriously crashing, strange errors in Apache

 Over the holiday, our distance learning campus webserver crashed, and
 our alarm system failed to notify anyone in the office (meaning that no
 one discovered this until yesterday morning).My boss managed to get
 the site up and running again, but when I came in and checked the error
 logs for JRun, I can't find anything out of the ordinary, in either
 default_event.log or admin_event.log (I found a broken pipe error in
 default_event.log but that is dated from this morning and is thus
 unrelated to Thursday's crash).On the other hand, my error_log from
 Apache shows the following line many many many times starting on Thursday:

 [notice] jrApache[7535] JRun is busy.[15] dropped while sending command.

 This message also shows up frequently, beginning at 9:05 on Thursday,
 November 27:

 [notice] jrApache[7535] Couldn't initialize from remote server, JRun
 server(s) probably down.

 ...however, I cannot find anything in either default-event.log or
 admin-event.log (or earlier versions of those files) that corresponds to
 that time.

 The Apache logs indicate that the computer was running the entire time,
 as was Apache itself.

 Does anyone have any idea as to what might have happened, or where else
 I might be able to find more information?
_

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Re: JRun mysteriously crashing, strange errors in Apache

[Ben Groeneveld]

Rchard, I'm not sure by what you mean to say in that logging is always 
on, and println() for System.out and System.err will go to stdout and 
stderr, so I suspect that if you redirect them you will capture them.
All other logging should be in JRun4/logs.Does that make sense?BenG.

Richard Crawford wrote:

 Ben Groeneveld wrote:

  I believe that you might find more logging info if you run from the
  command line and redirect stdout and stderr to a file.With JRun3 these
 
  used to be captured in a separate log files, but with JRun4 this is no
  longer the default.I do believe that the documentation talks about how
 
  to setup such logging, though.Hope this helps, BenG.
 

 Hm.Is there a way to access this information if you haven't enabled
 the logging?

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Re: High Traffic JRun4 Settings

[Ben Groeneveld]

Juan

I agree, that's a good article, and we have used it when we were with 
JRun 3.1.  With JRun3.1 we never actually scaled that far, though.  We 
are now using JRun4 sp1 and cannot get passed 1000 concurrent 
threads/sockets. 

Thanks for your advice, BenG.

Juan Camacho wrote:

We were having the same problem, we found a very good article that helped us 
to solve the problem, check it out, I hope it helps:

http://www.macromedia.com/devnet/server_archive/articles/performance_tuning_jrun31.html

Juan

  

From: Ben Groeneveld [EMAIL PROTECTED]
Reply-To: [EMAIL PROTECTED]
To: JRun-Talk [EMAIL PROTECTED]
Subject: High Traffic JRun4 Settings
Date: Wed, 20 Aug 2003 18:07:20 -0700

JRun fans, I am experimenting with high volume settings for JRun under
IIS.  I seem to bump up against a limit of 1000 user threads open.  I
have configured the default server SERVER-INF/jrun.xml as follows:

  service class=jrun.servlet.jrpp.JRunProxyService name=ProxyService
!--attribute name=activeHandlerThreads25/attribute--
attribute name=activeHandlerThreads1005/attribute
attribute name=backlog500/attribute
attribute name=deactivatedfalse/attribute
attribute name=interface*/attribute
!--attribute name=maxHandlerThreads1000/attribute--
attribute name=maxHandlerThreads1005/attribute
attribute name=minHandlerThreads1/attribute
attribute name=port51000/attribute
attribute name=threadWaitTimeout20/attribute
attribute name=timeout300/attribute

At 1000 concurrent connections the jrun server will start complaining
that I need to configure it for more threads.  I can set the active and
or max handler threads higher, e.g., 2000, and it has no effect.  When I
experimented with low numbers, these params normally allow me (N-1)
concurrent connections, where N is the HandlerThread param.  Now from
what I understand, each socket connection will hold onto one thread, and
a VM on NT should be able to handle 2048 threads or so.  Anyone have any
idea what I am missing?

I don't think IIS is the issue.  But for what it's worth, I have JRun
connected to IIS5 on win2k server, which is configured to as follows:

100,000 hits per day
ListenBackLog 500
AcceptExOutstanding 200
MaxPoolThreads 20
PoolThreadLimit 2000
ServerListenBackLog 2000
MaxEndPointConnections 2000

Thanks for any advice.  BenG.

--
Ben Groeneveld
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:541.420.6246








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High Traffic JRun4 Settings

[Ben Groeneveld]

JRun fans, I am experimenting with high volume settings for JRun under 
IIS.  I seem to bump up against a limit of 1000 user threads open.  I 
have configured the default server SERVER-INF/jrun.xml as follows:

  service class=jrun.servlet.jrpp.JRunProxyService name=ProxyService
!--attribute name=activeHandlerThreads25/attribute--
attribute name=activeHandlerThreads1005/attribute
attribute name=backlog500/attribute
attribute name=deactivatedfalse/attribute
attribute name=interface*/attribute
!--attribute name=maxHandlerThreads1000/attribute--
attribute name=maxHandlerThreads1005/attribute
attribute name=minHandlerThreads1/attribute
attribute name=port51000/attribute
attribute name=threadWaitTimeout20/attribute
attribute name=timeout300/attribute

At 1000 concurrent connections the jrun server will start complaining 
that I need to configure it for more threads.  I can set the active and 
or max handler threads higher, e.g., 2000, and it has no effect.  When I 
experimented with low numbers, these params normally allow me (N-1) 
concurrent connections, where N is the HandlerThread param.  Now from 
what I understand, each socket connection will hold onto one thread, and 
a VM on NT should be able to handle 2048 threads or so.  Anyone have any 
idea what I am missing?

I don't think IIS is the issue.  But for what it's worth, I have JRun 
connected to IIS5 on win2k server, which is configured to as follows:

100,000 hits per day
ListenBackLog 500
AcceptExOutstanding 200
MaxPoolThreads 20
PoolThreadLimit 2000
ServerListenBackLog 2000
MaxEndPointConnections 2000

Thanks for any advice.  BenG.

-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:541.420.6246




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Re: help! jrun 3.1 crashing!!!

[Ben Groeneveld]

This may sound simple, but I would suggest divide and conquer.  
You haven't provided any useful information to comment on, so here are 
some very random thoughts.
Isolate the problem.
Try running just the servlet that crashes.
Create a seperate JRun installation to debug on that has no 
modifications other than service packs.

Hope that helps. Thanks, BenG.

[EMAIL PROTECTED] wrote:

This is really frustrating, now one of the applications is hanging at any page.
At first it was one specific page that would not load this morning, although
it's been working fine all along.  Now, the whole application is not loading,
but other apps are working fine.

I did try generating a thread dump but no indication why this is happening, or
it could be I am not understanding it (most likely).  Can anyone help me?
Our applications are not that complex and mimimum modifications were made to the
JRUN 3.1 when installed.

I called Macromedia to get some support and they want to charge $2000 a day

Any suggestions?

Thanks!
Z



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Re: Max Heap Size.

[Ben Groeneveld]

Kannan, before you start changing these parameters wildly, you might 
want to check you memory usage to see what your real bottleneck is. 
1024M is quite high.  JRun has some really nice metrics built in to log 
memory growth.  I would recommend setting Xms and Xms both equal to some 
number like 128 meg so that memory is 'pre-allocated', and turn on the 
collection of memory statistics.  Then you can see if you don't have a 
leak.  What the amount of memory used.  If you do have a leak you can 
get a tool like OptimizeIt (trial available) to help pinpoint it. I've 
tried using a free tool called jmp, but it had some reliability problems 
last time I tried about 6m ago.  Good luck, BenG.

Kannaiyan P wrote:

Hello,
   I have some problem on the my application. i will give my scenario of my 
problem.

when i start both app server @ web server it works fast . when people 
starting using the web. slowly it become very slow. and after some time it 
is not working ( i mean somebody try to open a page it never shows up). I 
think i have problem on the memory or between app server and webserver( 
connector). Please i need help on this issue. Anyone response my mail it 
very very thankful.

How to increase the Max Heap Size  VM Arguments : right now my Max heap 
size is : 512 MB  VM Arguments : -Xmx1024M. i want increase both heap size 
and VM Arguments.
please i need example value.
please recommends on this too.

Thanks
Kannan



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Optimizing JRun4 For Larger Sites

[Ben Groeneveld]

We have an application configured for JRun3 to support up to 500 
concurrent connections (open sockets).  There we're some useful 
documents that helped us get there, in particular MacroMedia's 
Platform-Specific Performance Settings Article 11772.  What might I 
find useful for JRun4 tuning?  Currently I am wading through the pdf's, 
and just came across the HtmlAgentService to set all parameters in the 
jrun.xml file.  But, some recommendations or references for large 
installations would be useful.  Thanks, BenG.

-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488



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Inconsistency Iisue with jvm.conf and admin console Settings

[Ben Groeneveld]

This looks like a bug.  We are running JRun4 no service packs (because 
sp1 doesn't completely install). In our bin/jvm.conf we have 
pre-allocated memory:

java.args=-Xmx128M -Xms128M

But, the admin console will display only the second param as:

-Xms128M

So, using the admin console you think something is missing ...  so you 
add more params and provide the jvm with conflicting instructions. 
 Anyone else seen this?  Thanks, BenG.

-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488



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How To Browse Virtual Dirs In JRun4

[Ben Groeneveld]

How do I tell JRun4 to permit directory browsing in a specific 
directory, like the following dir defined  in my jrun-web.xml file?


  virtual-mapping
resource-path/logs/*/resource-path
system-path/usr/local/JRun4/logs/system-path
  /virtual-mapping

Thanks, BenG.

-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:BGroeneveld;ici-web.com, phone:541.388.3611, cell:208.520.6488



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Issues with XML and JRun4

[Ben Groeneveld]

I've been trying to use jdom8.jar with xerces.  I tried using the 
builtin jdom7 with crimson, but kept getting an error regarding a null 
constructor for the SAXParser.  However, my code works as desired after 
taking the following drastic measure, i.e., replacing and modify the 
jrun.jar.  I updated jrun.jar with jdom and xerces as follows:

   jar xvf jdom.jar
   jar xvf XmlParserAPIs.jar
   jar xvf xercesImpl.jar
   jar -uf jrun.jar 'JDOMAbout$Author.class' 'JDOMAbout$Info.class' 
JDOMAbout.class javax org

I thought I should have, but I could not get any of the following to 
work. For each of these I essentially get a ClassNotFoundException for 
the SAXParser.

- put the jars in my CLASSPATH, or in JRun4/lib, or in 
JRun4/servers/default/myApp/WEB-INF/lib
- expanding the jars into myApp's war path WEB-INF/classes

Although everything seems to work fine for me now, I'm sure messing with 
jrun.jar is not kosher, especially with regard to support and patches, 
etc.  What would be the right way to do this?  

Thanks, BenG.

-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:BGroeneveld;ici-web.com, phone:541.388.3611, cell:208.520.6488



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Re: document uploading tool

[Ben Groeneveld]

Zafif, I don't, but if you find out how I'd like to know.  Thanks, BenG.

[EMAIL PROTECTED] wrote:

 I downloaded the new files and it's working great.  Do you know what would be
the best way for me to check the size before uploading?
Once I create the MultiRequest obj, and the file is larger than max size , it
gives you automatically an error.  I want to warn the user prior that.

Thanks


  
   
Ben Groeneveld
   
bgroeneveld@icTo: Jrun-Talk 
[EMAIL PROTECTED]   
i-web.com cc:
   
   Subject: Re: document uploading tool   
   
10/07/2002
   
12:19 PM  
   
Please respond
   
to jrun-talk  
   
  
   
  
   
  
   
  
   




Zafif, we use Jason's classes on a postgres backend, and they work just
great. We do exactly what you proposed. And his book's pretty good to
have anyway.  We just have problems with files  300M because of a bug
in apache on linux, but otherwise uploads to 2G work.  Good luck!  BenG.

Cortlandt Winters wrote:

Hi Zafif,

Here are two that I've looked at recently and liked .
www.javazoom.com
www.servlets.com

Both have pretty nice implementations of multipart file upload code.
Javazoom's is a jsp that costs $99 with an admin interface included, Jason
Hunter's doesn't have an admin interface but it just requires that you have
a current copy of his servlets book. Both are pretty good deals if you ask
me.

But I would think that new behavior in a 2 year old piece of code might more
likely come from a configuration change or a different browser version than
something being wrong in the tool itself.

Good luck, hope to hear about the results later.

Cort

- Original Message -
From: [EMAIL PROTECTED]
To: JRun-Talk [EMAIL PROTECTED]
Sent: Monday, October 07, 2002 10:04 AM
Subject: document uploading tool


Any of you suggest a good document uploading tool?

The tool I have is acting up.  It consists of:
- A table in the db, with document specific info and location of file.
- Folder on the Jrun server with subfolders for each app.
- Uploading servlet that updates/inserts the document on the file server

and

adds the reference record in the table. Sometimes it lets me create

subfolders

on the file server and sometimes it just drops the files in the main

directory.

I'm having a hard time troubleshooting since I can't always reproduce the

error.

Anyway, it's a utility we wrote a couple of years ago, and I'm hoping

there is a

better tool out there.

Thank you!




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Re: document uploading tool

[Ben Groeneveld]

Zafif, we use Jason's classes on a postgres backend, and they work just 
great. We do exactly what you proposed. And his book's pretty good to 
have anyway.  We just have problems with files  300M because of a bug 
in apache on linux, but otherwise uploads to 2G work.  Good luck!  BenG.

Cortlandt Winters wrote:

Hi Zafif,

Here are two that I've looked at recently and liked .
www.javazoom.com
www.servlets.com

Both have pretty nice implementations of multipart file upload code.
Javazoom's is a jsp that costs $99 with an admin interface included, Jason
Hunter's doesn't have an admin interface but it just requires that you have
a current copy of his servlets book. Both are pretty good deals if you ask
me.

But I would think that new behavior in a 2 year old piece of code might more
likely come from a configuration change or a different browser version than
something being wrong in the tool itself.

Good luck, hope to hear about the results later.

Cort

- Original Message -
From: [EMAIL PROTECTED]
To: JRun-Talk [EMAIL PROTECTED]
Sent: Monday, October 07, 2002 10:04 AM
Subject: document uploading tool


Any of you suggest a good document uploading tool?

The tool I have is acting up.  It consists of:
- A table in the db, with document specific info and location of file.
- Folder on the Jrun server with subfolders for each app.
- Uploading servlet that updates/inserts the document on the file server

and

adds the reference record in the table. Sometimes it lets me create

subfolders

on the file server and sometimes it just drops the files in the main

directory.

I'm having a hard time troubleshooting since I can't always reproduce the

error.

Anyway, it's a utility we wrote a couple of years ago, and I'm hoping

there is a

better tool out there.

Thank you!



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Re: Potential JRun 4 getPathInfo Migration Issue

[Ben Groeneveld]

Yes, our pattern was /TestServlet and changing it to /TestServlet/* 
resolves the issue.  Thanks!  BenG.

Thomas Ruggles wrote:

Hi Ben,

I have been trying to reproduce this behavior and have come to the following 
assumption - your TestServlet servlet mapping uses the url pattern /TestServlet.  Am 
I correct?

I set up a mapping for my SnoopServlet using url pattern /snoop and requested 
http://localhost:8100/snoop/more/path/info and see the same results that you do - 
404.  However, when I use the url pattern /snoop/* I get the servlet path= /snoop and 
path info=/more/path/info as expected.

While this may differ from JRun 3.x it is in compliance with the Servlet 2.3 spec 
(and matches the RI's behavior) and is touched upon in the example below from the 
spec.

Hope this helps,
Tom Ruggles
JRun QA 


Table SRV.1: Example Context Set Up
ContextPath /catalog
Servlet Mapping Pattern: /lawn/*
Servlet: LawnServlet
Servlet Mapping Pattern: /garden/*
Servlet: GardenServlet
Servlet Mapping Pattern: *.jsp
Servlet: JSPServlet

Table SRV.2: Observed Path Element Behavior
Request Path Path Elements
/catalog/lawn/index.html 
ContextPath: /catalog
ServletPath: /lawn
PathInfo: /index.html


-Original Message-
From: Ben Groeneveld [mailto:[EMAIL PROTECTED]]
Sent: Thursday, September 05, 2002 3:08 PM
To: JRun-Talk
Subject: Potential JRun 4 getPathInfo Migration Issue


I am having trouble migrating a servlet that uses request.getPathInfo(). 
 We use a URL like:

http://127.0.0.1:8100/tJRun4/TestServlet/extraParams?misc=stuffmore=NotEnough

I developed a little testcase which presents the above as follows on 
JRun 3.0:

doGet
logRequestParameters request.getPathInfo(): /extraParams
logRequestParameters request.getQueryString(): misc=stuffmore=NotEnough
logRequestParameters request.getPathTranslated(): 
C:\usr\local\jrun-3.0\servers\default\tJRun4\extraParams
logRequestParameters request.getRequestURL(): 
/tJRun4/TestServlet/extraParams
logRequestParameters request.getParameterValues(): misc:[stuff]
logRequestParameters request.getParameterValues(): more:[NotEnough]

On JRun 4 I just get in the log:

error Requested resource /tJRun4/TestServlet/extraParams not found

Anyone have a clue as to what's up or what we're doing wrong?  Thanks, BenG.


-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488



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Potential JRun 4 getPathInfo Migration Issue

[Ben Groeneveld]

I am having trouble migrating a servlet that uses request.getPathInfo(). 
 We use a URL like:

http://127.0.0.1:8100/tJRun4/TestServlet/extraParams?misc=stuffmore=NotEnough

I developed a little testcase which presents the above as follows on 
JRun 3.0:

doGet
logRequestParameters request.getPathInfo(): /extraParams
logRequestParameters request.getQueryString(): misc=stuffmore=NotEnough
logRequestParameters request.getPathTranslated(): 
C:\usr\local\jrun-3.0\servers\default\tJRun4\extraParams
logRequestParameters request.getRequestURL(): 
/tJRun4/TestServlet/extraParams
logRequestParameters request.getParameterValues(): misc:[stuff]
logRequestParameters request.getParameterValues(): more:[NotEnough]

On JRun 4 I just get in the log:

error Requested resource /tJRun4/TestServlet/extraParams not found

Anyone have a clue as to what's up or what we're doing wrong?  Thanks, BenG.
-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488


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Re: Storing xml in oracle 8i

[Ben Groeneveld]

Verma, if you are looking for performance, consider storing your large 
objects outside of oracle directly on the file system.  You can store a 
reference to the file in oracle.  Filesystems are pretty good at serving 
large stuff quickly - works great for us!  Hope that helps, BenG.

[EMAIL PROTECTED] wrote:

Hi All,
Has anybody ever faced a challenge to store bigger size xml or any other
file in the oracle 8i database.
I tried using the folloing schema-
CREATE TABLE ADVT_XML (
XML_NAME VARCHAR(32),
XML_DATA CLOB)
STORAGE (INITIAL 10M NEXT 10M)
TABLESPACE ASI_DATA
LOB (XML_DATA) STORE AS advt_xml_lob
(TABLESPACE asi_test DISABLE STORAGE IN ROW
STORAGE (INITIAL 5M NEXT 5M)
CHUNK 32
PCTVERSION 0
NOCACHE LOGGING );


But I could save only 9k out of 15k file. And took almost 3 minutes to save.
Has anybody ever done this?

Thanks

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Re: Storing xml in oracle 8i

[Ben Groeneveld]

Verma, you could map the file directory to your web server, then it 
could be served to anyone to whom you provide access.  But that may not 
be what you are looking for.  Hope that helps, BenG.

[EMAIL PROTECTED] wrote:

Can I modified the file being stored as a reference in oracle?
I read, using BFILE type allows file to be used as read-only.
Storing file on file system will make it server dependent. I have to access
that file from multiple servers.
Any thought.


-Original Message-
From: Ben Groeneveld [mailto:[EMAIL PROTECTED]]
Sent: Friday, August 02, 2002 12:04 PM
To: JRun-Talk
Subject: Re: Storing xml in oracle 8i


Verma, if you are looking for performance, consider storing your large 
objects outside of oracle directly on the file system.  You can store a 
reference to the file in oracle.  Filesystems are pretty good at serving 
large stuff quickly - works great for us!  Hope that helps, BenG.

[EMAIL PROTECTED] wrote:

Hi All,
Has anybody ever faced a challenge to store bigger size xml or any other
file in the oracle 8i database.
I tried using the folloing schema-
CREATE TABLE ADVT_XML (
XML_NAME VARCHAR(32),
XML_DATA CLOB)
STORAGE (INITIAL 10M NEXT 10M)
TABLESPACE ASI_DATA
LOB (XML_DATA) STORE AS advt_xml_lob
(TABLESPACE asi_test DISABLE STORAGE IN ROW
STORAGE (INITIAL 5M NEXT 5M)
CHUNK 32
PCTVERSION 0
NOCACHE LOGGING );


But I could save only 9k out of 15k file. And took almost 3 minutes to

save.

Has anybody ever done this?

Thanks



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Re: Java/Excel

[Ben Groeneveld]

Kans, I have found that the easiest way to do this is to simply alias 
your jsp or servlet to somename.csv.  Then, if you just return a file 
with comma separated values, your IE will open MSExcel as an OLE thingy. 
 Netscape will may prompt you.  So, like this in your web.xml:

servlet
servlet-nameSql2Csv/servlet-name
jsp-file/forms/sql2csv.jsp/jsp-file
/servlet
servlet-mapping
servlet-nameSql2Csv/servlet-name
url-pattern/forms/sql2csv.csv/url-pattern
/servlet-mapping


When IE sees that the file type of .csv it loads the results into Excel. 
 So it *only* works if your URL ends with .csv, so you must POST if 
parameters are needed.  You just need to write the csv to the stream (in 
jsp out.print()).  To help Netscape you can add content type like so:

% contentType=application/vnd.ms-excel
%

There are fancier ways to do this with XML as the so called pet shop 
examples show.  However, I like the KISS principle.  Hope that helps, BenG.

Kannaiyan P wrote:

Hi
  I m using jrun4. i have question for you you know the finance.yahoo.com . 
if you open any ticker for company you can see the daily stock value of the 
particular company based on period. at same time if you want to download the 
information you can download the data using excel file. so when user access 
my web site i want to give option to download the data dynamically. i don't 
know how to do that . i m using java , jsp, oracle database. please if any 
body know the solution or code please share the information . that would 
very helpful for me

Thanks
Kans





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Re: help! Datasource!

[Ben Groeneveld]

Zafif, this is the case here.  We are doing some JNI and when we hose 
the system up such that jrun.exe won't exit, even though the vm is gone, 
but you try and start up a new instance anyway, the symptom reported in 
the log is

Port in use by another service or process: 53000

so I think your hypothesis is right on.  BenG.

[EMAIL PROTECTED] wrote:

Thank you for your reply.  I will try to implement that this week and see how it
goes.

The real problem we are having is every now and then, one of our apps is
crashing the jrun default server with the following msg:
javax.servlet.ServletException: Port in use by another service or process:
53000.

I searched the web and this forum, and found the tech notes.  But it seems that
this port is not being used by any other apps.  The only other explanation I
have is maybe an instance of the app is not closing.  Or maybe the JDBC
connection is not closing. So I wrote a routine to check it for the classes that
have the connection set up and make sure to close it if it is not null, (even
though I already instructed it to close!)

It worked fine for few days and now, it crashed again.  I noticed from the logs
that prior to that, it had created several JDBC connections but did not close
them or time out.  I'm pretty sure that these were opened by the Jrun datasource
and not my classes.

Anyone can suggest what else we can do to resolve this?

 [968]   [1]java.net.BindException: Port in use by another service or process:
53000
  [967]   07/30 15:29:28 error (JRun) JRun Aborting!
[javax.servlet.ServletException: Port in use by another service or process:
53000]
  [966]   07/30 15:29:28 info (JRun) Loading control
  [965]   07/30 15:29:28 info (license) Enabling unlimited concurrency for
Advanced
  [964]   07/30 15:29:28 info (JRun) Loading license
  [963]   07/30 15:29:28 info (JRun) Loading monitor
  [962]   07/30 15:29:11 info (JRun) Destroying jdbc
  [961]   07/30 15:29:11 info (JRun) Destroying ejb
  [960]   07/30 15:29:11 info (JRun) Destroying jms
  [959]   07/30 15:29:11 info (JRun) Destroying jndi
  [958]   07/30 15:29:11 info (JRun) Destroying mail
  [957]   07/30 15:29:11 info (JRun) Destroying url
  [956]   07/30 15:29:11 info (JRun) Destroying default-app
  [955]   07/30 15:29:11 info (JRun) Destroying demo-app
  [954]   07/30 15:29:11 info (JRun) Destroying invoice-app
  [953]   07/30 15:29:11 info (JRun) Destroying MPDEV
  [952]   07/30 15:29:11 info (JRun) Destroying MP Production
  [951]   07/30 15:29:11 info (JRun) Destroying PCF
  [950]   07/30 15:29:11 info (JRun) Destroying GEF
  [949]   07/30 15:29:11 info (JRun) Destroying MP2
  [948]   07/30 15:29:11 info (session) 3 session(s) persisted
  [947]   07/30 15:29:11 info (JRun) SearchCriteria: destroy
  [946]   07/30 15:29:11 info (JRun) invoker: destroy
  [945]   07/30 15:29:11 info (JRun) Destroying BNWPPDev
  [944]   07/30 15:29:11 info (JRun) Destroying web
  [943]   07/30 15:29:11 info (JRun) Destroying jcp
  [942]   07/30 15:26:26 info (JRun) (BNWPP)Removing JDBC connection
jdbc:jrun:sqlserver://esdsql2.worldbank.org:1433;databaseName=BNWPP due to
timeout even though connection is still in use.
  [941]   07/30 15:25:28 info (JRun) (BNWPP) Creating JDBC connection to
jdbc:jrun:sqlserver://esdsql2.worldbank.org:1433;databaseName=BNWPP
  [940]   07/30 15:25:16 info (JRun) (BNWPP) Creating JDBC connection to
jdbc:jrun:sqlserver://esdsql2.worldbank.org:1433;databaseName=BNWPP
  [939]   07/30 15:25:05 info (JRun) (BNWPP) Creating JDBC connection to
jdbc:jrun:sqlserver://esdsql2.worldbank.org:1433;databaseName=BNWPP
  [938]   07/30 15:24:58 info (JRun) (BNWPP) Creating JDBC connection to
jdbc:jrun:sqlserver://esdsql2.worldbank.org:1433;databaseName=BNWPP
  [937]   07/30 15:23:30 info (JRun) (BNWPP) Creating JDBC connection to
jdbc:jrun:sqlserver://esdsql2.worldbank.org:1433;databaseName=BNWPP
  [936]   07/30 15:22:38 info (JRun) (BNWPP) Creating JDBC connection to
jdbc:jrun:sqlserver://esdsql2.worldbank.org:1433;databaseName=BNWPP
  [935]   07/30 15:22:32 info (JRun) (BNWPP) Creating JDBC connection to
jdbc:jrun:sqlserver://esdsql2.worldbank.org:1433;databaseName=BNWPP
  [934]   07/30 15:22:07 info (JRun) (BNWPP) Creating JDBC connection to
jdbc:jrun:sqlserver://esdsql2.worldbank.org:1433;databaseName=BNWPP
  [933]   07/30 15:21:28 info (JRun) (BNWPP) Creating JDBC connection to
jdbc:jrun:sqlserver://esdsql2.worldbank.org:1433;databaseName=BNWPP
  [932]   07/30 14:40:59 info (JRun) (BNWPP) Creating JDBC connection to
jdbc:jrun:sqlserver://esdsql2.worldbank.org:1433;databaseName=BNWPP
  [931]   07/30 14:38:26 info (JRun) (BNWPP) Removing JDBC connection
jdbc:jrun:sqlserver://esdsql2.worldbank.org:1433;databaseName=BNWPP due to
timeout
  [930]   07/30 14:25:15 info (JRun) (BNWPP) Creating JDBC connection to
jdbc:jrun:sqlserver://esdsql2.worldbank.org:1433;databaseName=BNWPP
  [929]   07/30 14:24:26 info (JRun) (BNWPP) Removing JDBC connection

Re: Jrun in suse linux 7.2

[Ben Groeneveld]

And, there's an alternate fix to this issue as well, although I have not 
needed it:

 Ben,

 I can't seem to reply to the list, so I'll send this along to you (if you
 want to send it to the list, you can).

 The reason you're having problems is that the version of tar that Red 
 Hat is
 shipping is a newer version and has had some things changed.  Please 
 take a
 look at this article from the JRun site detailing what you need to do 
 to fix
 the problem (I had the same problem when installing it on my Linux box).

 http://www.macromedia.com/v1/handlers/index.cfm?ID=21039Method=Full


 Enjoy,

 Erik Sahl
 [EMAIL PROTECTED]

Thanks, BenG.

David Spacey wrote:

 Hi Veronika,

 I tried to install Jrun server 3.1 Enterprise edition
 on Suse Linux 7.2. with syntax:
 
 sh jrun31-unix-us.sh
 
 But it never success. It always error when installing
 core component.
 
 The error message is :
 
 344 garbage bytes ignore at end of archieve tar: error
 exit delayed from previous error.

 I had a similar problem with Redhat.  (And this despite Macromedia's 
 claim that redhat is the only supported distro.)

 The solution I was given by Ben Groeneveld on this list is to search 
 Macromedia's web site for patch 26414.  That copy installed perfectly 
 for me.  Why that isn't the default copy is beyond me.

 The other possible solution, from Sanjay Acharya, is to download and 
 install the same version of tar that Macromedia used to assemble the 
 archive.  The details are available on 
 'http://www.macromedia.com/support/jrun/releasenotes/3/releasenotes_3_1.h' 

 .  I didn't need to try that.

 Good luck.
 -- 

 David Spacey

 [EMAIL PROTECTED]

 Archives: http://www.mail-archive.com/jrun-talk@houseoffusion.com/
 Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists

 .


-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488



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Re: Difficult To Reproduce Session Issue

[Ben Groeneveld]

Celeste, replace 'setHeader' with 'addHeader' in the last statement 
only?  BenG.


Haseltine, Celeste wrote:

Will, 

Good point.  All of our web pages carry the header below.  Perhaps that is
why we have not experienced this problem.

response.setHeader(Pragma,no-cache); //HTTP 1.0  refetch completely next
time document is
needed.
response.setHeader(Cache-Control,no-cache); //HTTP 1.1
response.setDateHeader (Expires, 0); //prevents caching at the proxy
server, refetches ONLY if it
has been modified since last fetch
response.setHeader(Cache-Control,no-store); //HTTP 1.1


Celeste

-Original Message-
From: Will Berger [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, March 27, 2002 10:38 AM
To: JRun-Talk
Subject: RE: Difficult To Reproduce Session Issue


I am coming late to this thread, but I thought I would give you my 2 cents.
We ran into this problem sometime ago where it appeared to be a jrun bug
that caused sessions to get mixed up, turned out to be that the new client
that we signed up had a proxy caching server and our jsp were being cached.
Adding the

response.addHeader(Pragma, No-cache);
response.addHeader(Cache-Control, no-cache);
response.addDateHeader(Expires, 1);

This resolved the issue.

Will

-Original Message-
From: Mike Collins [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, March 27, 2002 11:01 AM
To: JRun-Talk
Subject: Re: Difficult To Reproduce Session Issue


Some ideas on troubleshooting this issue:

I can think of 3 reasons why someone can get the wrong session data:
1. your jsessionid cookie somehow gets reset during the session to another
valid session
2. when your session is initialized you step on someone else's httpsession
object
3. requests with an incoming jsessionid gets bound to the wrong httpsession
object

Some ideas on troubleshooting the above scenarios:
- upon the creation of a new session, record the jsessionid in the
httpsession object.
- if a value already exists you know that you have just hit #2
- on all subsequent requests validate the jsessionid with the value on the
httpsession object. If they are not equal you know the problem is 1 or 3.

If you add these lines of code I would think you have a pretty good chance
at isolating and stopping folks from getting the wrong session.  I would
also hope it might lead us to a resolution.

My gut tells me it is number 3,  the others seem like they would have
revealed themselves by now.

Regards,
Mike



- Original Message -
From: Jeff Ramin [EMAIL PROTECTED]
To: JRun-Talk [EMAIL PROTECTED]
Sent: Wednesday, March 27, 2002 9:08 AM
Subject: Re: Difficult To Reproduce Session Issue


Well, as long as we're commenting on the competition:

My current lightweight app server of choice is Resin.  I don't have
much experience with it yet, but it seems solid.  And fast.  My first
option used to be JRun, but given that this serious bug has gotten
through Macromedia's quality assurance system 3 times, I have
lost faith.

As for WebSphere - I don't know about versions 3.5 or 4.0 (is 4.0
out yet?), but I have a lot of experience with 3.0.  My advice given
that experience: RUN AWAY AS FAST AS YOU CAN.


michael veit wrote:

 We evaled both of those WebSphere and WebLogic - Websphere is much

harder to work with then is WebLogic. WebLogic is close to JRun in ease of
administration. But they both are very expensive, but you get what u pay
for.

  Haseltine, Celeste [EMAIL PROTECTED] wrote: Michael,

We haven't seen this problem, not yet anyway. But our servers are not

under

much of a load yet, as our site is just getting off the ground. We

expect

that to change over the next three to four months. If we do run into the
same problem, I suspect that will be the final straw for the owner of

this

facility, and he too will decide to go with another JSP/Servlet server.

The

only thing stopping him now is the much greater costs of either BEA

Weblogic

and IBM Websphere, which are the only two JSP/Servlet/EJB servers I

would

consider going to at this point in time. Of course, since I recommended
JRUN Server to the owner (mainly for the much lower costs and ease of

use

for a young group that was new to JSP/Servlet development and web
administration) it would probably mean my job. Oh well, such is life!!!

If you do find a patch or get additional assistance from

Macromedia/Allaire,

please post it on this listserver. Good luck!!!

Celeste



--
Jeffrey Ramin
Berbee
5520 Research Park Drive   Madison, WI 53711
[EMAIL PROTECTED]
608.298.1024

Berbee...putting the E in business





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Re: Difficult To Reproduce Session Issue

[Ben Groeneveld]

+1 for charlie, well said :)  BenG.

even if you are standing still you are moving backwards

charles arehart wrote:

Speaking only for myself (whose attitude I assume you didn't understand),
I'm talking about letting by-gones be by-gones, considering it water under
the bridge, what's past is past, etc. Let's move forward and judge based on
what 's done now as much as what's been done in the past. As I said,

If future similar situations are addressed similarly, that's
great news for those of us remaining committed to JRun.


If the damage to anyone's faith and hope is irreparable, then so be it. I'll
just assert that as a beta tester of JRun 4 (and observer of the growth in
the standards-support of the product through 3 and 3.1), it seems that the
resources being dedicated to JRun and the improvements in the product are
such that we have much to look forward to.

And as was asserted by later notes today, sometimes problems like this are
found to be caused by entirely unexpected situations--and sometimes not even
the fault of the vendor. But as you said in a later note, let's not debate
it. As I said, I just want to have a hopeful outlook about the future. Maybe
it's a little pollyanna, but so be it. :-) I certainly don't mean to
diminish the importance of the problem or its severity for those who
suffered it.

/charlie

-Original Message-
From: Jeff Ramin [mailto:[EMAIL PROTECTED]]
Sent: Monday, April 01, 2002 9:24 AM
To: JRun-Talk
Subject: Re: Difficult To Reproduce Session Issue




I don't understand this attitude.  We're talking about a very serious
bug that Macromedia has known about for close to a year now.  It
got through their testing/release process twice.  They had a similar
we will do whatever it takes to fix this problem response in
November, which resulted in a patch that didn't fix the problem.

I wouldn't call this a great response.  More like feeble.

If you're using JRun for development, or for an intranet where
session affinity isn't important, then I can understand.  But if you
continue to use it in other environments, you are merely ignoring
the issue.


charles arehart wrote:

Wow, great way to respond to the issue. Thanks, Mike and Macromedia.

Let's hope folks don't jump in with trite replies like about

time, etc. It

really won't add anything meaningful to the situation. If future similar
situations are addressed similarly, that's great news for those of us
remaining committed to JRun.

/charlie



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Re: Connection reset by peer: socket write error

[Ben Groeneveld]

What's JRun's Oracle driver?  Have you tried using oracle's free thin 
driver?  We use oracle JDBC driver-8.1.6.2.0 on a large variety of 
projects and operations w/o a hiccup.  Maybe trying it will help you.  BenG.

[EMAIL PROTECTED] wrote:

Hi,
I am getting the following error while accessing the database. 
I have JRun 3.1.15506 app server running on win2000 and NT both, and using
oracle database. Instead of using JRun's connection pool for oracle I am
using my own connection pool. The system works fine most of the times but
all of a sudden it starts giving Connection reset by peer. I didn't have
this problem when I was using JRun's Oracle thin driver connection pool
before. But for migrating reasons I started using my own connection pool.
Sometimes when I query the database using preparedStatement, it throws the
below exception. I am seeing the same exception both on NT and win2000. 
Please tell what might the reason behind.
Thanks
_
_

Thu Mar 28 10:13:31 EST 2002
Io exception: Connection reset by peer: socket write error
java.sql.SQLException: Io exception: Connection reset by peer: socket write
error
   at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:114)
   at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:156)
   at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:269)
   at
oracle.jdbc.driver.OracleStatement.init(OracleStatement.java:292)
   at
oracle.jdbc.driver.OracleStatement.init(OracleStatement.java:307)
   at
oracle.jdbc.driver.OraclePreparedStatement.init(OraclePreparedStatement.ja
va:194)
   at
oracle.jdbc.driver.OraclePreparedStatement.init(OraclePreparedStatement.ja
va:177)
   at
oracle.jdbc.driver.OracleConnection.prepareStatement(OracleConnection.java:3
39)
   at
com.emc.asi.ejb.pool.ASIConnection.prepareStatement(ASIConnection.java:61)
   at com.emc.asi.ejb.LoginBean.processLogin(LoginBean.java:48)
   at java.lang.reflect.Method.invoke(Native Method)
   at
allaire.ejipt._BeanMethod._invoke(allaire/ejipt/_BeanMethod.java:166)
   at
allaire.ejipt._SessionObject._invoke(allaire/ejipt/_SessionObject.java:182)
   at
allaire.ejipt._CallableObject.call(allaire/ejipt/_CallableObject.java:101)
   at java.lang.reflect.Method.invoke(Native Method)
   at
sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:241)
   at sun.rmi.transport.Transport$1.run(Transport.java:152)
   at java.security.AccessController.doPrivileged(Native Method)
   at sun.rmi.transport.Transport.serviceCall(Transport.java:148)
   at
sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:465)
   at
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:7
06)
   at java.lang.Thread.run(Thread.java:484)

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Re: Difficult To Reproduce Session Issue

[Ben Groeneveld]

I continue to have the issue with jrun 3.1 patch level 26414 on redhat 
7.1.  The same problem was on rh  6.2.  It's very frustrating because I 
cannot reproduce it consistently.  I'm glad to hear someone tried their 
code on tomcat and no longer experience it.  I've been experimenting 
with jboss/tomcat on another effort, so maybe that's just the way to go. 
 Thanks, BenG.

Haseltine, Celeste wrote:

Michael, 

We haven't seen this problem, not yet anyway.  But our servers are not under
much of a load yet, as our site is just getting off the ground.  We expect
that to change over the next three to four months.  If we do run into the
same problem, I suspect that will be the final straw for the owner of this
facility, and he too will decide to go with another JSP/Servlet server.  The
only thing stopping him now is the much greater costs of either BEA Weblogic
and IBM Websphere, which are the only two JSP/Servlet/EJB servers I would
consider going to at this point in time.  Of course, since I recommended
JRUN Server to the owner (mainly for the much lower costs and ease of use
for a young group that was new to JSP/Servlet development and web
administration) it would probably mean my job.  Oh well, such is life!!!

If you do find a patch or get additional assistance from Macromedia/Allaire,
please post it on this listserver.  Good luck!!!

Celeste

-Original Message-
From: michael veit [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, March 26, 2002 2:53 PM
To: JRun-Talk
Subject: RE: Difficult To Reproduce Session Issue


 NT 4.0, Jrun 3.1
 
  Haseltine, Celeste [EMAIL PROTECTED] wrote: Michael, 

What version of Windows server and JRUN Server were you using when you began
experiencing this problem? 

Celeste

-Original Message-
From: michael veit [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, March 26, 2002 7:07 AM
To: JRun-Talk
Subject: Re: Difficult To Reproduce Session Issue


Sebastian,
On windows we had an issue where sessions were being switched - i.e.
client sessions were sent to the wrong clients allowing people to see each
others information. Needless to say what havoc that this caused. I searched
this mail list and found someone who had a similar problem and had logged
the problem with Allaire/Macromedia. They acknowledged it as a bug but never
supplied an answer. I resurrected the problem on this list and sure enough I
received a bunch of e-mail from people who were experiencing the same thing
but assumed it was their application, not JRun that was the culprit. After a
big uproar on this list, Macromedia responded with a patch. We applied the
patch, but the problem still occured. Our solution was to go with another
Java server. I have to say that none are 
easier to use than JRun, but I am afraid we just don't have faith in JRun. I
really liked it - easy to use and administer (EJB was a little more
cumbersome, but I think that the ejipt solution was more stop-gap than
anything). 
Sebastian Millies wrote: Hello,

in February, Ben Groeneveld posted a question about losing
session attributes:

http://www.mail-archive.com/jrun-talk@houseoffusion.com/msg05805.html

Has this question been answered?

I seem to run into a similar problem: JRun 3.1 build 26414 under
RedHat 7.2 seems to create unexpected new sessions. The problem 
is easily reproducible. It happens every time when I request a new JSP
page, but not when I forward to the same JSP I'm already on (I'm using
Struts).

I log the session ID to the event-log, and see a new session is created,
causing me to lose previously stored session attributes.

It's not a time-out issue. The web.xml file sets the session timeout to 30
minutes.

It doesn't seem to be a permission problem: Setting directory permissions
to 777 and running JRun as root makes no difference. I've checked
my Browser settings (IE 6) to accept all Cookies. Choice of JVM (Sun,
Blackdown 
or IBM) also has no influence.

It's not a concurrency or load issue, either: I'm talking one single user,
one single
browser session.

The strange thing is, this ONLY happens in the JRun/Linux combination
- the same web application works just fine in Tomcat 3.2.4 on the same
Red Hat box, and in JRun3.1 under NT 4.0 SP6 (although that's JRun build
16777).
I guess that means the application itself is guilt-free, although I've not
been able to 
create a scaled-down example to send to the people at Macromedia.

I'm considering switching to Tomcat for production use. This problem
diminishes
my faith in the JRun server - recalling that there have been issues with
session
tracking before.

As it is, I'm flummoxed, and would be grateful for any assistance.

Best,
Sebastian











--
Sebastian Millies, IDS Scheer AG
Postfach 10 15 34, 66015 Saarbrücken
Zimmer 2.34, email: [EMAIL PROTECTED]
fon +49-681-210-3221, fax +49-681-210-1311 







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This list and all

Re: Difficult To Reproduce Session Issue

[Ben Groeneveld]

Scott, easy for you to say...and I would have done that were it 
critical. Instead, it's not.  Merely frustrating for me because it deals 
with a sys admin component of our system the customer never sees.

You know I have provided you with a test case of a bug before and you 
just sat on it.

How about offering some constructive debugging tips for this difficult 
issue instead?  

Thanks, BenG.

Scott Stirling wrote:

Pretty frustrating for me too.  If this is such a problem, why can't anyone come up 
with a reproducable test case?

Scott S.
Macromedia

-Original Message-
From: Ben Groeneveld [mailto:[EMAIL PROTECTED]]

I continue to have the issue with jrun 3.1 patch level 26414 
on redhat 
7.1.  The same problem was on rh  6.2.  It's very frustrating 
because I 
cannot reproduce it consistently.  I'm glad to hear someone 
tried their 
code on tomcat and no longer experience it.  I've been experimenting 
with jboss/tomcat on another effort, so maybe that's just the 
way to go. 
 Thanks, BenG.


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IIS authentication 'under' jrun

[Ben Groeneveld]

Hi, I'm looking for some iis/jrun integration advice.  We have a jrun 
3.0 app that uses form based authentication.  Nice because we can 
generate 100s of passwords in batches using pwgen and jrunpasswd.  Now 
we have the need to integrate with crystal reports under iis4 on nt4. 
 We would like to bring these crystal iis 'pages' under the jrun realm, 
which is defined in our web.xml.  I tried using a virtual mapping, but 
that doesn't work because the crystal reports use some sort of isapi 
(I'm not too familiar with this) filter that tell it to generate epf 
(encapsulated postscript, btw, pretty fancy if you haven't seen it). 
 Adding mime types to global.properties was apparently not enough.  Not 
being too knowledgeable on NT/IIS security - is there an easy way to 
accomplish this?  Note that we absolutely do not want to use an IIS/NT 
gui to admin 100s of users, so if the solution is to have IIS control 
authentication, I would gladly hear about some way to import gobs of 
user credentials.  Help is greatly appreciated.  Thanks, BenG.

-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488


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Re: Why HTTP tunneling not working in Netscape?

[Ben Groeneveld]

Susan, there can be a number of things up.  Proxies and persistent 
connections can wreak havoc with the URLConnection class.  In your case 
the POST may not actually be happening.  These two articles helped me a lot:

http://www.javaworld.com/javaworld/jw-03-2001/jw-0323-traps_p.html
http://www.javaworld.com/javaworld/javatips/jw-javatip34.html

Also, a great new feature for those of us using URLConnection instead of 
sockets (which I still prefer) is that with 1.4 you can specify a read 
timeout (albeit using a property)!  Hope that helps, BenG.

Susan M. Orndorff wrote:

Hi, All,
I have followed the code in Marty Hall's Core Web Programming to send POST data 
directly to a servlet from an applet.  The code I used is:

 URL url = new URL(protocol, host, port, uri);
 URLConnection uc = url.openConnection();
 uc.setUseCaches(false);
 uc.setDoOutput(true);
 ByteArrayOutputStream bs = new ByteArrayOutputStream(512);
 PrintWriter pw = new PrintWriter(bs, true);
 pw.print(ID=PennywiseTheClownRole=BallAndPlateTwirler);
 pw.flush();
 String lengthString = String.valueOf(bs.size());
 uc.setRequestProperty(Content-Length, lengthString);
 uc.setRequestProperty(Content-Type, application/x-www-form-urlencoded);
 bs.writeTo(uc.getOutputStream());

This works great in Internet Explorer.  The use of request.getParameter() in my 
servlet gets the ID and Role passed with pw.print.  However, when I run the same code 
in Netscape,  request.getParameter() in my servlet yields a null value.  Can anyone 
tell me why this is happening, and/or how to fix it?  I am using IE 5.0 and Netscape 
4.76, JRun 3.0 with IIS running on NT4.0.  Thanks in advance for any advice or help.

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Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488



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Re: JRUN Startup and Shutdown Settings????

[Ben Groeneveld]

Alex, you may look into the init method of a servlet that is designated 
to be loaded on container startup by the web.xml, and use the destroy 
method of the same servlet.  Hopt that helps, BenG.

RESTREPO, ALEXANDER G [Non-Pharmacia/1000] wrote:

Hello,

I want to be able to run a JSP
which stops a socket service when JRUN
is shutdown.  I also want to be able
to run a JSP which starts a Socket Service
when JRUN starts up again.

Does anyone know if their is a good
method to do this without creating specialized
shell scripts?  Are their any JRUN settings or
files which can be modified to do this?


Many Thanks:

Alex Restrepo

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Re: Starting JRun Servers as Service

[Ben Groeneveld]

Dan, you add it to your local startup script, usually an rc.local, or 
create a startup script by cloning one of the many in /etc/rc.d/init.d 
if you are running a sysv unix like red hat linux (maybe macromedia will 
soon ship a template like other vendors). After cloning you use a 
utility like chkconfig to ensure the new script fires up at the 
appropriate run level by creating some symbolic links.  Hope that helps, 
BenG.

Dan Tran wrote:

what about unix?

Is there  a way to automate this?

-Dan


From: Bob Buford [EMAIL PROTECTED]
Reply-To: [EMAIL PROTECTED]
To: JRun-Talk [EMAIL PROTECTED]
Subject: RE: Starting JRun Servers as Service
Date: Tue, 12 Feb 2002 16:39:36 -0500

jrun -install NT-service_name server_name

like

jrun -install JRun GCPC Server gcpc

see p87 of the JRun 3.0 Setup Guide

Bob


-Original Message-
From: Drew Falkman [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 12, 2002 4:38 PM
To: JRun-Talk
Subject: Starting JRun Servers as Service


On this note...

Does anyone know how to start a JRun Server as a service, as the Default
Server and Admin Server do?

Thanks.

-Drew Falkman

-Original Message-
From: Dan Tran [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, February 12, 2002 1:24 PM
To: JRun-Talk
Subject: Re: JRUN Startup and Shutdown Settings


I think what Restrepo meant was how to start Jrun
automatically during system startup

I wonder if JRUN folks have any recommendation on how ot do this?

On the W2K, we have the option to start JRUN under
service.

What about Unix?

-Dan

- Original Message -
From: Ben Groeneveld [EMAIL PROTECTED]
To: JRun-Talk [EMAIL PROTECTED]
Sent: Tuesday, February 12, 2002 12:19 PM
Subject: Re: JRUN Startup and Shutdown Settings


Alex, you may look into the init method of a servlet that is

designated

to be loaded on container startup by the web.xml, and use the destroy
method of the same servlet.  Hopt that helps, BenG.

RESTREPO, ALEXANDER G [Non-Pharmacia/1000] wrote:

Hello,

I want to be able to run a JSP
which stops a socket service when JRUN
is shutdown.  I also want to be able
to run a JSP which starts a Socket Service
when JRUN starts up again.

Does anyone know if their is a good
method to do this without creating specialized
shell scripts?  Are their any JRUN settings or
files which can be modified to do this?


Many Thanks:

Alex Restrepo




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Difficult To Reproduce Session Issue

[Ben Groeneveld]

Hello.  I seem to have a difficult to reproduce session issue.  I am 
loosing session attributes on occasion, and it seems to be related 
(although not for sure) to concurrent use of ie 6 with a java applet 
that connects to the server for db interaction.  Odd thing is that it is 
not immediately after one of those events - only after several more 
client/server interactions.  It seems like I get a new session.  All my 
forms and servlets communicate with the same database, whose jdbc 
connection information is stored with that user's session - so when my 
session gets lost I will see messages like:

02/08 16:19:26 error (JRun) exception.jsp: message:Can only use 'connection' or 
'datasrc' or 'driver + url'. trace:allaire.taglib.InvalidTagAttributeException: Can 
only use 'connection' or 'datasrc' or 'driver + url'. 
[allaire.taglib.InvalidTagAttributeException: Can only use 'connection' or 'datasrc' 
or 'driver + url'.]
allaire.taglib.InvalidTagAttributeException: Can only use 'connection' or 'datasrc' or 
'driver + url'.
at allaire.taglib.SqlTag.validate(SqlTag.java:100)
at allaire.taglib.SqlTag.doStartTag(SqlTag.java:168)


Can someone clue me in on what this might be - or I'm even up for some 
good debugging ideas?  I am using jrun 3.1 patch level 26414 on redhat 
7.1.  Thanks, BenG.

-- 
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Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488

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Re: Installation on Linux

[Ben Groeneveld]

David, I had the same problem on 7.1 and wound up copying the binaries 
from a successful 6.2 install.  But then, patch 26414 seems to install 
fine, which is apparently a complete install.  Maybe give that a try; 
find it by searching the knowledge base at the support site.  Hope that 
helps, BenG.

Funny, I did exactly what you did in terms of altering the script and 
eventually ran into checksum errors.  I thought it was me.

David Spacey wrote:

 Hi All,

 Can anyone advise on installing JRun on Linux?

 I've been handed a jrun server to help administer, so to help I'm 
 trying to set up a 'test' copy.  I've downloaded the developer preview 
 to install on an otherwise fresh copy of Redhat 7.1.  The install 
 script proceeds OK as far as 'Installing core components,' and then 
 exits with two error messages from tar.  These are:

 tar: 171 garbage bytes ignored at end of archive
 tar: Error exit delayed from previous errors

 I've tried downloading the whole thing again, with the same results.  
 I've also tried an altered script which pressed on regardless of the 
 errors, and some files were clearly not being installed.  Of course, 
 all this was done as root.

 Has anyone else experienced this?

 -- 

 David Spacey

 [EMAIL PROTECTED]

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Re: newbie questions - clustering

[Ben Groeneveld]

Is this true?  One of my clients has just requested an estimate for a 
clustered system.  I would also very much appreciate a response to this 
inquiry.  Thanks, BenG.

Justin MacCarthy wrote:

We are using CF currently, but are evaluating JRun  J2EE and possibly a
mixed cf/java platform.

I've read that the current version of JRun (3.1) does not support
clustering. When is the next version release date, is there any info on the
features that will be included in this area? Will JRun be part of the NEO ??

If you can point me towards any info, that would be excellent.

Thanks ~J

-- 
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Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488


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Re: netstat, grep, etc

[Ben Groeneveld]

Jeff, you are so right.  But one really nice things about NT is the 
performance monitor.  It is just indispensable in system testing.  Are 
you aware of any such comprehensive system data collection tool for 
unix?  I've been on unix for ages and still fiddle with various scripts 
and utils.  Thanks, BenG.

Jeff Ramin wrote:

One of the reasons I prefer unix over windows is the command
line interface.  With knowledge of a few commands, you can get
an amazing amount of information.

There is a toolset that provides many unix commands for windows
operating systems, for those of you that don't like pointing and
clicking all the time:

http://sources.redhat.com/cygwin/

For those of you that have a unix background but must work
in a windows environment, this is really a must see.



charles arehart wrote:

Well, the netstat works in Win2k, but not the grep. :-)  At least now in my
Win2k Pro. And while this is still not the list of unused ports I was
originally seeking, it's cool to know that there's such an easy way to get
those that are in use.

/charlie

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 17, 2001 12:35 PM
To: JRun-Talk
Subject: Re: JRun-Talk-List V1 #7

Jeff Ramin [EMAIL PROTECTED] wrote:

For those of you running unix, to see what ports currently
have servers using them, just type:

netstat -an | grep -i listen

This works in Windows 2000 as well.

--Sam

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Re: JVM and Red Hat 7.2

[Ben Groeneveld]

Renato, in testing I have observed and recorded better performance from 
IBM's jvm over Sun's on Redhat 7.1 for both java applications and 
servlets.  BenG.

Renato wrote:

Hi all,

Which the most stable JVM to use with JRun on RedHat 7.2 ? I heard of some 
incompatibilities with the RedHat and Java and latest Sun's JVM 1.3.1 
doesn't seen to be fast and stable enough ( even with the workaround ). 
Where can I download this JVM ?

Thanks
Renato - Brazil.
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Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488


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Re: JVM and Red Hat 7.2

[Ben Groeneveld]

Renato, download from www.ibm.com/java

bruce:~ java -version
java version 1.3.0
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0)
Classic VM (build 1.3.0, J2RE 1.3.0 IBM build cx130-20010626 (JIT enabled: jitc))
bruce:~ uname -a
Linux bruce 2.4.3-6smp #1 SMP Wed May 16 04:29:16 EDT 2001 i686 unknown
bruce:~ 

Regarding comments on the 1.4 beta - for what it's worth the plugin 
frequently freezes my IE on win32 running Oracle applets.  But then I 
haven't tested IBM's plugin there.  The IBM jdk on win32 also shows 
observable and measurable performance improvements over Sun's 1.3. BenG.


Renato wrote:

Thanks !

What version of IBM's are you using ? Where can I download it ?

On Wed, 12 Dec 2001 02:22:00 -0800, Ben Groeneveld bgroeneveld@ici-
web.com escreveu :

Renato, in testing I have observed and recorded better performance from 
IBM's jvm over Sun's on Redhat 7.1 for both java applications and 
servlets.  BenG.

Renato wrote:

Hi all,

Which the most stable JVM to use with JRun on RedHat 7.2 ? I heard of 

some 

incompatibilities with the RedHat and Java and latest Sun's JVM 1.3.1 
doesn't seen to be fast and stable enough ( even with the workaround ). 
Where can I download this JVM ?

Thanks
Renato - Brazil.
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Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488




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Re: Page cannot be displayed

[Ben Groeneveld]

Arul, this might be due to buffering.  This went away for me when I used 
Apache as the external web server, and for the JRun web server when I 
manually set the buffer size, like so in the jsp:

%@ page 
 buffer=32kb
 autoFlush=true
 language=java
 import=allaire.taglib.*, java.sql.* %

Hope that helps, BenG.

Arul wrote:

Hi 

I had a peculiar problem with Jrun .We have a live site and for some 
specific users it throws up an error Page Cannot be displayed

It's not happenning to all , all the time .For a specific set of Users 
it throws it occasionally.

What could be the problem.??

For the users who get this error , in their browsers the cookies are set 
properly and they are not behind a firewall.

The Problem is like this.They could see the Homepage(html) and they 
could click on the JSP page (login.jsp) and when they try to submit , 
the next instant they get this error.Is it cause of Get /Post problem in 
Jrun

we donot use any external web servers.

and why does this happen with Jrun. we use Jrun3.0 with SP2

-Arul


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Re: SV: JRun does not responds after 100 threads

[Ben Groeneveld]

Roar, unless you make special provisions each servlet request would be 
another thread.  Could it be that your threads (requests) are not 
exiting but blocking on some resource?  Can you throttle demand for that 
resource by including a synchronized method wrapped around that 
resource?  Just a thought.  BenG.

Johansen, Roar wrote:

Ben Groeneveld wrote:

Makarand, are you hitting JRun thru the Netscape Webserver?  Then your 
problem may be with its max concurrency setting.  I have seen this with 
IIS as the front-end to JRun.  How many concurrent connections will your 
Netscape Webserver accept?  Make sure you are updating the external web 
server settings and not the JRun web server.  Hope that helps, BenG.


-

Does anybody have any thoughts as to why the number of threads even rises to
100? We are running a site that serves over 1200 pages a minute in peak
hour, distributed among 6 unix servers. This means that any one server
continuously serves 3-4 pages a second and does so with a minimum effort. In
fact, any server rarely has more than 20-30 threads active at any time (we
measure this by 'netstat -n | grep ESTABLISHED | grep JRun connector port
number'). However, from time to time this figure rises dramatically during
a few seconds, often ending at the 100 threads, where it eventually locks
up. My feeling is, you can bump the limits in JRun, NS and unix, but when
this rise occurs, it will eventually eat up any resources you feed it. I
personally am very interested in finding a reason for this sudden rise.


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Re: JRun does not responds after 100 threads

[Ben Groeneveld]

More to ponder...I repeated this run on my laptop now booted in
redhat 6.2.  I change the JRun web server min threads from 1 to
50, and change the idle thread timeout from 300 to 60s.  Now I
fire up the JRun 3.1 default server.  I check gtop, and I see
jrun having 95 processes (a linux thread is practically a
process).  60 seconds later this number drops to 46.  Hmm.  That
doesn't seem right.  It should be threads beyond the pool of 50
that get killed.  Ok, so now I set the min threads back to 1,
restart, and JRun default has 44 threads.  Now all these threads
are idle, none are vying for CPU.  I have a hard time accepting
this as thread-thrashing or NT vs unix. These are the exact same
results I see on NT for JRun 3.0 sp2.  I think the thread pool's
not working, or I don't understand these parameters.  What am I
missing?  Thanks, BenG.

Haseltine, Celeste wrote:

Dave, 

You made an excellent point regarding thread thrashing.  Although I don't
know if thread thrashing is completely responsible for the behavior that
Ben is experiencing, it can certainly contribute.  If my memory serves me
correctly, the NT and 2000 threading scheduler is based on a preemptive
model, vs a Unix operating system's threading scheduler is based on a
time-slicing model.  The difference being that a time slicing scheduler
will eventually give CPU time to lower priority threads, whereas a
preemptive scheduler may not.  It one of many reasons to consider using a
Unix server if you expect to experience heavy traffic/load on your site. 

You can write a simple program to execute a group threads and then one by
one, launch another thread within your group and watch your performance.
If your performance suddenly deteriorates around 50 or 100 threads, than you
may need to upgrade your machine to include more CPU's.  Or, if you are
really anticipating a heavy load/traffic on your server, consider porting to
a Unix server.  That's one of the advantages of using JSP's and Java, you
can easily port from one platform to the other if necessary.  

Celeste  


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, October 03, 2001 6:09 PM
To: JRun-Talk
Subject: RE: Re: JRun does not responds after 100 threads


Guys,
   How many processors do you have running on your system? I do not 
believe that this is a JRUN or java issue but a tread thrashing 
issue. Basically only one thread can run at any exact moment upon a 
CPU. By running 100 threads at once, the machine is spending a lot of 
resources upon just switching between threads than running them. 
Another issue to consider is that NT's thread model is not the best 
going. I just got a dual Pentium set up and it provides a little boost, 
but not what I had hoped for:(
   As for our PRD systems, we use some of the larger SUN systems and 
they handle threading very well. After some experience we have found 
out that setting more than about 20 threads to a process(not jrun in 
particular) provides little benefit due to I/O  other things. This 
machine though has 64 processors to utilize.

Makarand,
   It sounds as if you might be upgrading your hardware to a UNIX 
system to handle your load. A big perk with JSP's is that your code 
won't have to change one bit:)

Dave

-Original Message-
From: bgroeneveld 
Sent: Wednesday, October 03, 2001 6:08 PM
To: jrun-talk
Cc: bgroeneveld
Subject: Re: JRun does not responds after 100 threads


Makarand, I have seen similar behavior.  I think there may be a JRun 
problem.  If I setup a threadpool of 50 with an idle thread timeout of 
60, then after a fresh jrun startup and no activity NT perfmon shows 
the threadpool gets cleaned up.  Or if I send a burst of 100 persistent 
connections, then after 60s the threadcount goes from 150 to 100.

I am going to try an experiment with the IBM jvm later this week to 
make sure this isn't VM related.

I've had best performance leaving the threadpool at 1, even thought 
that's not what's desired, my server/VM lives much longer that way.  
I'm assuming that changing the threadpool causes a fault inside JRun.  
Anyone know more?

BenG.

JOGALEKAR,MAKARAND (HP-Boise,ex1) wrote:

Hello,

We are having lot of problems with JRun 3.0 or Jrun3.1,
If we get high volume and the thread count goes beyond 100, it does not
respond.

We are just using servlets with Netscape Exterprise server 3.6 with 

EJB's at

all.

We have disabled the EJB option for performance and also tried 

different

options
by setting initial thread count to 50 with maximum thread count to 

500..but

nothing works..

Any help ??

Thanks,
-Makarand




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Re: JRun does not responds after 100 threads

[Ben Groeneveld]

Makarand, are you hitting JRun thru the Netscape Webserver?  Then your 
problem may be with its max concurrency setting.  I have seen this with 
IIS as the front-end to JRun.  How many concurrent connections will your 
Netscape Webserver accept?  Make sure you are updating the external web 
server settings and not the JRun web server.  Hope that helps, BenG.

JOGALEKAR,MAKARAND (HP-Boise,ex1) wrote:

Hello Guys,

Thanks for you feedback..

We tried following options to see If it boost the performance..

1) Setting everything to default in JRun's setting
Minimum Thread Count =1
Maximum Active Requests = 100

2)  Minimum Thread Count = 5
Maximum Active Requests = 200

3)  Minimum Thread Count = 25
Maximum Active Requests = 200

4)  Minimum Thread Count = 50
Maximum Active Requests = 500

We are not using any EJB's so, we removed all EJB settings from the
local.properties file.

Hardward: 
   OS:  Windows NT service Pack 5
   CPU: 2 Intel Processores
   RAM : 1 GB
   Hard disk : 
   c: 4 GB, 
   d: 25 GB

We are still having this threading issue of 100 threads..

-Makarand
  

-Original Message-
From: Haseltine, Celeste [mailto:[EMAIL PROTECTED]]
Sent: Thursday, October 04, 2001 9:43 AM
To: JRun-Talk
Subject: RE: Re: JRun does not responds after 100 threads


Dave, 

You made an excellent point regarding thread thrashing.  Although I don't
know if thread thrashing is completely responsible for the behavior that
Ben is experiencing, it can certainly contribute.  If my memory serves me
correctly, the NT and 2000 threading scheduler is based on a preemptive
model, vs a Unix operating system's threading scheduler is based on a
time-slicing model.  The difference being that a time slicing scheduler
will eventually give CPU time to lower priority threads, whereas a
preemptive scheduler may not.  It one of many reasons to consider using a
Unix server if you expect to experience heavy traffic/load on your site. 

You can write a simple program to execute a group threads and then one by
one, launch another thread within your group and watch your performance.
If your performance suddenly deteriorates around 50 or 100 threads, than you
may need to upgrade your machine to include more CPU's.  Or, if you are
really anticipating a heavy load/traffic on your server, consider porting to
a Unix server.  That's one of the advantages of using JSP's and Java, you
can easily port from one platform to the other if necessary.  

Celeste  


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, October 03, 2001 6:09 PM
To: JRun-Talk
Subject: RE: Re: JRun does not responds after 100 threads


Guys,
   How many processors do you have running on your system? I do not 
believe that this is a JRUN or java issue but a tread thrashing 
issue. Basically only one thread can run at any exact moment upon a 
CPU. By running 100 threads at once, the machine is spending a lot of 
resources upon just switching between threads than running them. 
Another issue to consider is that NT's thread model is not the best 
going. I just got a dual Pentium set up and it provides a little boost, 
but not what I had hoped for:(
   As for our PRD systems, we use some of the larger SUN systems and 
they handle threading very well. After some experience we have found 
out that setting more than about 20 threads to a process(not jrun in 
particular) provides little benefit due to I/O  other things. This 
machine though has 64 processors to utilize.

Makarand,
   It sounds as if you might be upgrading your hardware to a UNIX 
system to handle your load. A big perk with JSP's is that your code 
won't have to change one bit:)

Dave

-Original Message-
From: bgroeneveld 
Sent: Wednesday, October 03, 2001 6:08 PM
To: jrun-talk
Cc: bgroeneveld
Subject: Re: JRun does not responds after 100 threads


Makarand, I have seen similar behavior.  I think there may be a JRun 
problem.  If I setup a threadpool of 50 with an idle thread timeout of 
60, then after a fresh jrun startup and no activity NT perfmon shows 
the threadpool gets cleaned up.  Or if I send a burst of 100 persistent 
connections, then after 60s the threadcount goes from 150 to 100.

I am going to try an experiment with the IBM jvm later this week to 
make sure this isn't VM related.

I've had best performance leaving the threadpool at 1, even thought 
that's not what's desired, my server/VM lives much longer that way.  
I'm assuming that changing the threadpool causes a fault inside JRun.  
Anyone know more?

BenG.

JOGALEKAR,MAKARAND (HP-Boise,ex1) wrote:

Hello,

We are having lot of problems with JRun 3.0 or Jrun3.1,
If we get high volume and the thread count goes beyond 100, it does not
respond.

We are just using servlets with Netscape Exterprise server 3.6 with 

EJB's at

all.

We have disabled the EJB option for performance and also 

debug messages

[Ben Groeneveld]

When I turn on debug I see a lot of the following messages in my log 
file.  Probably one for each thread I have.  Does anyone know what they 
mean?  Thanks, BenG.
--
10/02 23:52:09 debug (jcp) jcp-131 caught Exception while swapping 
[java.lang.InterruptedException]

java.lang.InterruptedException

at 
allaire.jrun.jrpp.ProxyService.swapRunnable(../jrpp/ProxyService.java:51)

at allaire.jrun.ThreadPool.swapRunnable(../ThreadPool.java:223)

at allaire.jrun.WorkerThread.run(../WorkerThread.java:77)

-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488

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Re: JRun does not responds after 100 threads

[Ben Groeneveld]

Makarand, I have seen similar behavior.  I think there may be a JRun problem.  If I 
setup a threadpool of 50 with an idle thread timeout of 60, then after a fresh jrun 
startup and no activity NT perfmon shows the threadpool gets cleaned up.  Or if I send 
a burst of 100 persistent connections, then after 60s the threadcount goes from 150 to 
100.

I am going to try an experiment with the IBM jvm later this week to make sure this 
isn't VM related.

I've had best performance leaving the threadpool at 1, even thought that's not what's 
desired, my server/VM lives much longer that way.  I'm assuming that changing the 
threadpool causes a fault inside JRun.  Anyone know more?

BenG.

JOGALEKAR,MAKARAND (HP-Boise,ex1) wrote:

Hello,

We are having lot of problems with JRun 3.0 or Jrun3.1,
If we get high volume and the thread count goes beyond 100, it does not
respond.

We are just using servlets with Netscape Exterprise server 3.6 with EJB's at
all.

We have disabled the EJB option for performance and also tried different
options
by setting initial thread count to 50 with maximum thread count to 500..but
nothing works..

Any help ??

Thanks,
-Makarand

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Re: JRun does not responds after 100 threads

[Ben Groeneveld]

Dave, agreed that 100 threads is a lot, but only if they are all busy. 
 From a unix perspective, the main thing to worry about is that the 
average queue length in front of the cpu - aka load average - is  1. 
 As long as this is well below 1 there should not be 'thread thrashing' 
on a single headed machine, don't you think?

For example, in my experiments on NT we see JRun's VM consuming about 
100 threads (because our clients keep their sockets open, but the 
threads are largely idle).  NT and other processes account for an 
additional 4-500 threads, but CPU utilization is just some 15%.  I can 
monitor page faults as well and they stay at just a couple per second. 
 I'm having a difficult time attributing the thread 'loss' to something 
else than a bug...

Thanks, BenG.

[EMAIL PROTECTED] wrote:

Guys,
   How many processors do you have running on your system? I do not 
believe that this is a JRUN or java issue but a tread thrashing 
issue. Basically only one thread can run at any exact moment upon a 
CPU. By running 100 threads at once, the machine is spending a lot of 
resources upon just switching between threads than running them. 
Another issue to consider is that NT's thread model is not the best 
going. I just got a dual Pentium set up and it provides a little boost, 
but not what I had hoped for:(
   As for our PRD systems, we use some of the larger SUN systems and 
they handle threading very well. After some experience we have found 
out that setting more than about 20 threads to a process(not jrun in 
particular) provides little benefit due to I/O  other things. This 
machine though has 64 processors to utilize.

Makarand,
   It sounds as if you might be upgrading your hardware to a UNIX 
system to handle your load. A big perk with JSP's is that your code 
won't have to change one bit:)

Dave

-Original Message-
From: bgroeneveld 
Sent: Wednesday, October 03, 2001 6:08 PM
To: jrun-talk
Cc: bgroeneveld
Subject: Re: JRun does not responds after 100 threads


Makarand, I have seen similar behavior.  I think there may be a JRun 
problem.  If I setup a threadpool of 50 with an idle thread timeout of 
60, then after a fresh jrun startup and no activity NT perfmon shows 
the threadpool gets cleaned up.  Or if I send a burst of 100 persistent 
connections, then after 60s the threadcount goes from 150 to 100.

I am going to try an experiment with the IBM jvm later this week to 
make sure this isn't VM related.

I've had best performance leaving the threadpool at 1, even thought 
that's not what's desired, my server/VM lives much longer that way.  
I'm assuming that changing the threadpool causes a fault inside JRun.  
Anyone know more?

BenG.

JOGALEKAR,MAKARAND (HP-Boise,ex1) wrote:

Hello,

We are having lot of problems with JRun 3.0 or Jrun3.1,
If we get high volume and the thread count goes beyond 100, it does not
respond.

We are just using servlets with Netscape Exterprise server 3.6 with 

EJB's at

all.

We have disabled the EJB option for performance and also tried 

different

options
by setting initial thread count to 50 with maximum thread count to 

500..but

nothing works..

Any help ??

Thanks,
-Makarand



~~
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Re: Security Configuration in JRun: example (path-based access contro l)

[Ben Groeneveld]

John, thanks.  I was hoping to not introduce yet another passwd 
machanism to maintain (anyone know if jrun has an LDAP interface 
planned?) by keeping it all in apache.  And 'bedankt' for the detailed 
explain below; I'll use it.  BenG.

Mullee John - ZGI wrote:

-Original Message-
From: Ben Groeneveld [mailto:bgroeneveld@]

As an aside, I would also like to be able to control access to the paths 
mapped by jrun using .htaccess or AuthUserFile, but it seems that they 
get intercepted first by the mod_jrun.  Do you know of a way around this?

BenG.


Any way I can think of would be messy and, at best, not more easy to
maintain.
One thing might be to use a base servlet which, for every GET or POST, tries
to
connect back to apache (as if it was a local web-browser) with the supplied
credentials.
Of course you risk unwanted side-effects and worse performance...

Then again, maybe some bright spark perl-coder or java-whiz has coded
something
that will read apache's .htaccess etc and derive a web.xml security
constraint list..

JRUN_DIR/lib/global.properties : (relevent fragments; backup your
global.properties and edit carefully!)
basically you need to add authentication to the line
webapp.services=scheduler,logging,session,jsp,file
The rest should be okay.


## control services


# List of services to start for Servlet/JSP support
servlet.services={servlet.webapps}
webapp.services=scheduler,logging,session,authentication,jsp,file

# service aliases
webapp.SessionManager=session
webapp.ResourceAuthenticator=authentication
webapp.PageTranslator=jsp


## misc JRun properties


# login/authentication service (new for 3.0)
authentication.class=allaire.jrun.servlet.ResourceAuthenticator
authentication.service=propfile
 
authentication.propfile.class=allaire.jrun.security.PropertyFileAuthenticati
on
authentication.propfile.filename={jrun.rootdir}/lib/users.properties

JRUN_DIR/lib/users.properties : (complete file)
see batchfile below for adding users  computing password hashes

# users.properties
# (this is nonsense data !)
# my_managers
user.B32=B3iMnzTIUIZGq
user.B34=B5LR2zgVT5HJq
# my_team
user.A7O=A37I7zUX4GyZq
user.AXY=AXLHozK39XQ0q
user.AYF=AYkiqzhPvctwq
# my_testers
user.BDP=B3.Lvz8ULo7uq
user.BL5=BuWDGzQo1BbLq
user.AXU=AGXQJzAQ5/qmq

group.my_managers=B32,B34
group.my_team=A7O,AXY,AYF, group.my_managers
group.my_testers=BDP,BL5,AXU
role.my_manager_role=group.my_managers
role.my_developer_role=group.my_team
role.my_user_role=group.my_team, group.my_testers

Also, to create users and passwords, you can use this batchfile:
adduser.bat : (check your JDK dir and JRUN dir!) (complete file)

@echo off
REM make sure the correct JDK bin dir is first in the path
set PATH=c:\jdk1.3\bin;%PATH%
set JRUN_HOME=c:\progra~1\allaire\jrun
set CLASSPATH=
set CLASSPATH=%CLASSPATH%;%JRUN_HOME%\lib\ext\servlet.jar
set CLASSPATH=%CLASSPATH%;%JRUN_HOME%\lib\jrun.jar
@echo . Removing user %1 :
java -cp %CLASSPATH% allaire.jrun.security.PropertyFileAuthentication
-remove %JRUN_HOME%\lib\users.properties %1
@echo . Adding   user %1 password %2 :
java -cp %CLASSPATH% allaire.jrun.security.PropertyFileAuthentication
-add%JRUN_HOME%\lib\users.properties %1 %2


This app/servlet is accessed by: http://localhost/myapp/ThingListServlet;
or http://User:Password@localhost/myapp/ThingListServlet;
JRUN_DIR/servers/default/myapp/WEB-INF/web.xml : (complete file)

web-app

servlet
servlet-nameThingListServlet/servlet-name
 
servlet-classbe.thiscorp.my.ThingListServlet/servlet-class
security-role-ref
 
role-namemanager/role-namerole-linkmy_manager_role/role-link
 
role-namedeveloper/role-namerole-linkmy_developer_role/role-link
 
role-nameuser/role-namerole-linkmy_user_role/role-link
/security-role-ref
/servlet

servlet-mapping
servlet-nameThingListServlet/servlet-name
url-pattern/ThingListServlet/url-pattern
/servlet-mapping

!-- Security Configuration --

!--
In JRUN there's a bunch of tricky bits to get just right in the
{jrun_home}/lib/global.properties,
{jrun_home}/lib/users.properties and
{jrun_home}/servers/{server}/local.properties
before it will actually ask you for a userid/password
(case-sensitive)
--

security-constraint

web-resource-collection
!-- the web-resource-name should be the same

Re: JRun 3.1 connector disables SSI

[Ben Groeneveld]

Scott, the goal is to have apache work the way it used to before jrun 
was connected.  jrun interferes with the ssi handling as far as I can 
tell.  If I turn off jrun's .shtml handling then .shtml in the apache 
server root still doesn't work unless I rm the mod_jrun.  

I have found a workaround.  Using the apache 'xbithack on' directive I 
can cause std .html files to be parsed for ssi if their file mode is +x. 
  I also rename my files from .shtml to .html for this to work.

I don't have evidence of anyone else seeing this issue, but would like 
to.  it's easy to reproduce.  The default redhat config for apache is to 
recognize ssi.  I'm running jrun 3.1 on redhat 6.2 with apache 1.3.14.  

Thanks, BenG.

Scott Stirling wrote:

I don't understand.  Do you want JRun to handle your SSI or do you want
Apache to?  I thought you wanted Apache to, so I sent instructions for
disabling JRun's SSI support.  JRun's SSI is weak, and only works with a few
directives, so I would recommend disabling it, and let SSI fall through to
Apache.  You shouldn't have to rearrange the order of modules in Apache to
achieve this -- just comment out the line below in JRun's global.properties
and restart JRun and Apache.

Scott 

-Original Message-
From: Ben Groeneveld
To: JRun-Talk
Sent: 8/24/01 12:07 AM
Subject: Re: JRun 3.1 connector disables SSI

Scott, thanks.  I would like to have it on in my apache html tree.  But 
the mod_jrun seems to disable it.  BenG.

Scott Stirling wrote:

A sure way to disable JRun's handling of SSI, assuming you are using

.shtml

as the file extension for these, is remove or comment out the line in
global.properties that makes JRun handle those files:

###
## rules
###

webapp.servlet-mapping./servlet=invoker
webapp.servlet-mapping.*.jrun=invoker
#webapp.servlet-mapping.*.shtml=ssifilter  -- comment this line out
webapp.servlet-mapping.*.jsp=jsp
webapp.servlet-mapping.*.thtml=template

Scott Stirling

-Original Message-
From: Ben Groeneveld
To: JRun-Talk
Sent: 8/23/01 8:16 PM
Subject: Re: JRun 3.1 connector disables SSI

Victory cry too soon!

Just when shtml is working the mod_jrun stops, if I get mod_jrun to run


by placing it before includes_module then shtml stops...

Any help appreciated.  Thanks, BenG.  

Ben Groeneveld wrote:

John, SSI becomes disabled for all files in the apache Directory's.

By default JRun loads their module after all others when

auto-installed

by the JRun admin console.  So this is interesting: I just tried

loading 

the JRun module first.  *This works*.  I put it back at the end of the


httpd.conf and SSI stops working.  Order matters.  Thanks

As an aside, I would also like to be able to control access to the

paths 

mapped by jrun using .htaccess or AuthUserFile, but it seems that they


get intercepted first by the mod_jrun.  Do you know of a way around

this?

BenG.

Mullee John - ZGI wrote:

Subject: JRun 3.1 connector disables SSI

Hooking up my JRun 3.1 to Apache 1.3.14 on RedHat 6.2 disables

server

side includes (.shtml).  It is easily reproducible.  Has anyone else


seen this - is it a known problem with a workaround?  Thanks, BenG.

Does it disable SSI for all files or only files which are also JSPs?
Or only for files under the directory below which paths are mapped to
mod_jrun ?
Have you tried putting mod_jrun after all other modules loaded in the
https.conf?

john

.



-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488




~~
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Re: JRun 3.1 connector disables SSI

[Ben Groeneveld]

Scott, that works!  Thanks, BenG.

Scott Stirling wrote:

I've encountered exactly the same problem in the past, and I know how to get
around it.

The problem is I forgot that the shtml mapping is in both local.properties
_and_ global.properties.  Sorry.

If you coment out the line below in both files, restart JRun and Apache, you
shouldn't see JRun trying to handle shtml anymore, and Apache should work as
before with respect to shtml.

webapp.servlet-mapping.*.shtml={default}

If you have Apache and JRun configured this way and it still doesn't work
(and you are sure JRun and Apache have been restarted), then this is a bug
and we should fix it.

Scott S.

-Original Message-
From: Ben Groeneveld
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Sent: 8/24/2001 1:16 PM
Subject: Re: JRun 3.1 connector disables SSI

Scott, the goal is to have apache work the way it used to before jrun
was connected.  jrun interferes with the ssi handling as far as I can
tell.  If I turn off jrun's .shtml handling then .shtml in the apache
server root still doesn't work unless I rm the mod_jrun.  

I have found a workaround.  Using the apache 'xbithack on' directive I
can cause std .html files to be parsed for ssi if their file mode is +x.
I also rename my files from .shtml to .html for this to work.

I don't have evidence of anyone else seeing this issue, but would like
to.  it's easy to reproduce.  The default redhat config for apache is to
recognize ssi.  I'm running jrun 3.1 on redhat 6.2 with apache 1.3.14.  

Thanks, BenG.

Scott Stirling wrote:


I don't understand.  Do you want JRun to handle your SSI or do you want
Apache to?  I thought you wanted Apache to, so I sent instructions for
disabling JRun's SSI support.  JRun's SSI is weak, and only works with a
few
directives, so I would recommend disabling it, and let SSI fall through
to
Apache.  You shouldn't have to rearrange the order of modules in Apache
to
achieve this -- just comment out the line below in JRun's
global.properties
and restart JRun and Apache.

Scott 

-Original Message-
From: Ben Groeneveld
To: JRun-Talk
Sent: 8/24/01 12:07 AM
Subject: Re: JRun 3.1 connector disables SSI

Scott, thanks.  I would like to have it on in my apache html tree.  But 
the mod_jrun seems to disable it.  BenG.

Scott Stirling wrote:


A sure way to disable JRun's handling of SSI, assuming you are using

.shtml

as the file extension for these, is remove or comment out the line in
global.properties that makes JRun handle those files:

###
## rules
###

webapp.servlet-mapping./servlet=invoker
webapp.servlet-mapping.*.jrun=invoker
#webapp.servlet-mapping.*.shtml=ssifilter  -- comment this line out
webapp.servlet-mapping.*.jsp=jsp
webapp.servlet-mapping.*.thtml=template

Scott Stirling

-Original Message-
From: Ben Groeneveld
To: JRun-Talk
Sent: 8/23/01 8:16 PM
Subject: Re: JRun 3.1 connector disables SSI

Victory cry too soon!

Just when shtml is working the mod_jrun stops, if I get mod_jrun to run



by placing it before includes_module then shtml stops...

Any help appreciated.  Thanks, BenG.  

Ben Groeneveld wrote:


John, SSI becomes disabled for all files in the apache Directory's.

By default JRun loads their module after all others when

auto-installed

by the JRun admin console.  So this is interesting: I just tried


loading 


the JRun module first.  *This works*.  I put it back at the end of the



httpd.conf and SSI stops working.  Order matters.  Thanks

As an aside, I would also like to be able to control access to the


paths 


mapped by jrun using .htaccess or AuthUserFile, but it seems that they



get intercepted first by the mod_jrun.  Do you know of a way around


this?


BenG.

Mullee John - ZGI wrote:


Subject: JRun 3.1 connector disables SSI

Hooking up my JRun 3.1 to Apache 1.3.14 on RedHat 6.2 disables

server

side includes (.shtml).  It is easily reproducible.  Has anyone else



seen this - is it a known problem with a workaround?  Thanks, BenG.


Does it disable SSI for all files or only files which are also JSPs?
Or only for files under the directory below which paths are mapped to
mod_jrun ?
Have you tried putting mod_jrun after all other modules loaded in the
https.conf?

john

.






-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488




~~
Structure your ColdFusion code with Fusebox. Get the official book at 
http://www.fusionauthority.com/bkinfo.cfm
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Re: JRun 3.1 connector disables SSI

[Ben Groeneveld]

John, SSI becomes disabled for all files in the apache Directory's.

By default JRun loads their module after all others when auto-installed 
by the JRun admin console.  So this is interesting: I just tried loading 
the JRun module first.  *This works*.  I put it back at the end of the 
httpd.conf and SSI stops working.  Order matters.  Thanks

As an aside, I would also like to be able to control access to the paths 
mapped by jrun using .htaccess or AuthUserFile, but it seems that they 
get intercepted first by the mod_jrun.  Do you know of a way around this?

BenG.

Mullee John - ZGI wrote:

Subject: JRun 3.1 connector disables SSI


Hooking up my JRun 3.1 to Apache 1.3.14 on RedHat 6.2 disables server 
side includes (.shtml).  It is easily reproducible.  Has anyone else 
seen this - is it a known problem with a workaround?  Thanks, BenG.


Does it disable SSI for all files or only files which are also JSPs?
Or only for files under the directory below which paths are mapped to
mod_jrun ?
Have you tried putting mod_jrun after all other modules loaded in the
https.conf?

john

.


-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488




~~
Structure your ColdFusion code with Fusebox. Get the official book at 
http://www.fusionauthority.com/bkinfo.cfm
Archives: http://www.mail-archive.com/jrun-talk@houseoffusion.com/
Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists

Re: JRun 3.1 connector disables SSI

[Ben Groeneveld]

Victory cry too soon!

Just when shtml is working the mod_jrun stops, if I get mod_jrun to run 
by placing it before includes_module then shtml stops...

Any help appreciated.  Thanks, BenG.  

Ben Groeneveld wrote:

John, SSI becomes disabled for all files in the apache Directory's.

By default JRun loads their module after all others when auto-installed 
by the JRun admin console.  So this is interesting: I just tried loading 
the JRun module first.  *This works*.  I put it back at the end of the 
httpd.conf and SSI stops working.  Order matters.  Thanks

As an aside, I would also like to be able to control access to the paths 
mapped by jrun using .htaccess or AuthUserFile, but it seems that they 
get intercepted first by the mod_jrun.  Do you know of a way around this?

BenG.

Mullee John - ZGI wrote:

Subject: JRun 3.1 connector disables SSI

Hooking up my JRun 3.1 to Apache 1.3.14 on RedHat 6.2 disables server 
side includes (.shtml).  It is easily reproducible.  Has anyone else 
seen this - is it a known problem with a workaround?  Thanks, BenG.

Does it disable SSI for all files or only files which are also JSPs?
Or only for files under the directory below which paths are mapped to
mod_jrun ?
Have you tried putting mod_jrun after all other modules loaded in the
https.conf?

john

.



-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488




~~
Structure your ColdFusion code with Fusebox. Get the official book at 
http://www.fusionauthority.com/bkinfo.cfm
Archives: http://www.mail-archive.com/jrun-talk@houseoffusion.com/
Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists

Re: JRun 3.1 connector disables SSI

[Ben Groeneveld]

Scott, thanks.  I would like to have it on in my apache html tree.  But 
the mod_jrun seems to disable it.  BenG.

Scott Stirling wrote:

A sure way to disable JRun's handling of SSI, assuming you are using .shtml
as the file extension for these, is remove or comment out the line in
global.properties that makes JRun handle those files:

###
## rules
###

webapp.servlet-mapping./servlet=invoker
webapp.servlet-mapping.*.jrun=invoker
#webapp.servlet-mapping.*.shtml=ssifilter  -- comment this line out
webapp.servlet-mapping.*.jsp=jsp
webapp.servlet-mapping.*.thtml=template

Scott Stirling

-Original Message-
From: Ben Groeneveld
To: JRun-Talk
Sent: 8/23/01 8:16 PM
Subject: Re: JRun 3.1 connector disables SSI

Victory cry too soon!

Just when shtml is working the mod_jrun stops, if I get mod_jrun to run 
by placing it before includes_module then shtml stops...

Any help appreciated.  Thanks, BenG.  

Ben Groeneveld wrote:

John, SSI becomes disabled for all files in the apache Directory's.

By default JRun loads their module after all others when auto-installed


by the JRun admin console.  So this is interesting: I just tried

loading 

the JRun module first.  *This works*.  I put it back at the end of the 
httpd.conf and SSI stops working.  Order matters.  Thanks

As an aside, I would also like to be able to control access to the

paths 

mapped by jrun using .htaccess or AuthUserFile, but it seems that they 
get intercepted first by the mod_jrun.  Do you know of a way around

this?

BenG.

Mullee John - ZGI wrote:

Subject: JRun 3.1 connector disables SSI

Hooking up my JRun 3.1 to Apache 1.3.14 on RedHat 6.2 disables server


side includes (.shtml).  It is easily reproducible.  Has anyone else 
seen this - is it a known problem with a workaround?  Thanks, BenG.

Does it disable SSI for all files or only files which are also JSPs?
Or only for files under the directory below which paths are mapped to
mod_jrun ?
Have you tried putting mod_jrun after all other modules loaded in the
https.conf?

john

.



-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488




~~
Structure your ColdFusion code with Fusebox. Get the official book at 
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JRun 3.1 connector disables SSI

[Ben Groeneveld]

Hooking up my JRun 3.1 to Apache 1.3.14 on RedHat 6.2 disables server 
side includes (.shtml).  It is easily reproducible.  Has anyone else 
seen this - is it a known problem with a workaround?  Thanks, BenG.

-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488



~~
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Re: Setting Blob and Clob data in Oracle from an EJB.

[Ben Groeneveld]

Depending on your application, consider storing the blobs directly on 
disk.  Filesystems can be efficient and fast.  Just keep a reference to 
them in oracle.  BenG.

Mark A. Sandee wrote:

I managed to set blob and clob data in Oracle 8.1.5 and 8.1.8 using EJBs,
but it was a real kludge.
I was wondering if anyone knew of a better solution.

The problem is that when you access a blob (or clob) field in Oracle you
just get a
blob locator.  This locator in turn is used to obtain the blob object to
which the data
can be written.  To do this, you have to use SELECT ... FOR UPDATE to lock
the row
to ensure the blob locator remains valid.  I guess a transaction is needed
here, but how does
that work with a pooled connection that wants to autocommit after every
statement?

I use the routine below in a Session bean to accomplish the job.  It won't
work
without the FOR UPDATE, saying the row is not locked.  Using the FOR
UPDATE is not
allowed with AutoCommit true.  Setting AutoCommit to false is not allowed
with a pooled
connection.  Thus, I could only get this to work by using a non-pooled
connection
which in the code below costs a lot of time for each blob!  I'm using JRun
3.0 SP2.

Bottom line is I'd like to use a pooled connection and keep this code in the
BMP EJB.
Can I set blob data in Oracle using a pooled connection?

  public void setBlobData(String tableName, String pkey, int pkeyId,
InputStream dataIS)
   throws RemoteException {
int chunkSize = 1988;  // This number is optimized for the table chunk
size
byte[] buffer = new byte[chunkSize];


try {
  // NOTE: The setting of the blob data was moved to session bean
ImageBlob.  This was
  // done so that a separate non-pooled connection to the database could
be used so
  // the command .setAutoCommit(false) could be used.  I could not set
the blob data
  // without first turning off auto commit which is not allowed with a
pooled connection.
  // This is why source1 is not used here to get the connection.
  // Creating a connection outside of the connection pool is not
desirable and should
  // only be done if absolutely necessary.  i.e. Don't get connections
this way in other
  // places.
  Class.forName(jdbcDriver);

  Connection connection = DriverManager.getConnection(jdbcConnectString,
 jdbcUsername, jdbcPassword);
  connection.setAutoCommit(false);
  try {

BLOB blob;
Statement stmt = connection.createStatement();
String cmd = SELECT BlobData FROM +tableName+
 WHERE +pkey+ = +pkeyId+ FOR UPDATE;
ResultSet res = stmt.executeQuery(cmd);
if (res.next()) {
  // Get blob locator from the result set
  blob = ((OracleResultSet)res).getBLOB(1);

  OutputStream outstream = blob.getBinaryOutputStream();

  int length = -1;
  // Copy the data to the BLOB
  while ((length = dataIS.read(buffer)) != -1) {
outstream.write(buffer, 0, length);
  }
  outstream.close();
  res.close();
  connection.commit();
}
stmt.close();
  } catch (IOException e) {
 e.printStackTrace();
throw new RemoteException(e.toString());
  } finally {
connection.close();
  }

} catch (SQLException e) {
  e.printStackTrace();
  throw new RemoteException(e.toString());
} catch (ClassNotFoundException e) {
  e.printStackTrace();
}
  }



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what is Exception while swapping ?

[Ben Groeneveld]

In an attempt to debug what appears to be a lockup we turned debug on in 
logging.  One thing we see is this:

--
08/07 16:04:43 info (JRun) f_req_drw_Servlet.doGet END
08/07 16:05:00 debug (web) web-480 caught Exception while swapping 
[java.lang.InterruptedException]
java.lang.InterruptedException
at allaire.jrun.http.WebService.swapRunnable(WebService.java:118)
at allaire.jrun.ThreadPool.swapRunnable(ThreadPool.java:223)
at allaire.jrun.WorkerThread.run(WorkerThread.java:77)

08/07 16:05:10 debug (web) Limiting InputStream read to '-2' bytes to 
maintain keepalive.
08/07 16:05:10 info (JRun) f_req_drw_Servlet.doPost BEGIN
--

The END / BEGIN info's signify our code appears fine.  Can someone clue 
me in on what this might mean?  Thanks, BenG.

-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488



~~
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Re: bean newbie question

[Ben Groeneveld]

That's interesting, we do just the same but with CVS.  I'm curious, do 
you use makefiles for your build or have you come across a better tool? 
 Makefiles have been nice in that we can build from the same repository 
on linux and windows using cygwin.  BenG.

Haseltine, Celeste wrote:

Jay, 

I don't know about your development environment, but I require all
developers to install the free version of JRUN on their local development
machines.  Everyone is also required to update their local source code from
source safe upon notice, so that every developer has the same product
framework to work with.  This way, each individual can work on his segment
of the product using his local copy of JRUN and IIS as the server on his
local machine.  Upon completion of development and local testing by the
individual developer, his source code is uploaded to both source safe and to
a development server upon approval of his lead.  This is usually done on a
weekly basis.  This way, our testing department can test the entire product
on a development server that every developer is mapped to.  We can also use
the development server to discuss and view code during meetings.  

I do not advocate using a development server for a large group of developers
to actually develop on together.  It's too easy for one person to make a
change that subsequently breaks the product for everyone else, and brings
the development process to a halt.  By having a development environment
installed on each persons computer, every programmer can proceed at his/her
pace, and we can control when changes are uploaded to the development
server.  This way, the entire development server rarely goes down, and
development process can proceed on schedule.

I would be interested in any input from anyone else out there that has come
up with a better software management/development process for web
applications than the one I outlined above.  

Celeste   



-Original Message-
From: Jay [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 02, 2001 12:51 PM
To: JRun-Talk
Subject: Re: bean newbie question


Its a terrible thing. Imagine in a multi-developer environment how all of
this can have an effect on productivity - restarting all the time...
It ought to automatically recognize a modified bean - just like a modified
JSP, and recompile and create a new class file.

Can someone from Macromedia comment???


- Original Message -
From: Jackie Comeau [EMAIL PROTECTED]
To: JRun-Talk [EMAIL PROTECTED]
Sent: Thursday, August 02, 2001 7:05 AM
Subject: RE: bean newbie question


So, you recommend every time you make a JSP change to stop and restart the
server to make sure JRun recognizes the change? I have not run into this
yet, but I'm just playing around with JSP and actually developing anything
serious yet.

This is not a good thing! Is this a possible bug with JRun and has it been
reported?

I think I would test my JSP's changes anyways before putting them into
production, so hopefully I won't come up with problems of new class files
not replacing old automatically. But yeah, I see the problem if your
copying your changes over assuming the production server is going to
recompile.

Hmmm, not good!

Jackie

On Wednesday, August 01, 2001 6:00 PM, Haseltine, Celeste
[SMTP:[EMAIL PROTECTED]] wrote:

Jay,

To answer your question, I don't think you can.  The server loads all

your

classes into memory, along with your compiled JSP pages.  If your in a
development mode, JRUN will compile your JSP's to servlets the first

time

you request the JSP, and subsequently when it see's that the saved

date

is

newer than the compile date.  But not so for class files.  In order to
replace an old class file with a new class file in memory, you have to

stop

and restart the server.  Although this is not usually required for JSP
pages, but I have had times where minor changes in a JSP did NOT cause

JRUN

to recompile the JSP to a servlet, and I had to stop/restart the server

in

order to reflect the changes in the JSP page also.

If you are using JRUN studio as your IDE, you can stop and restart the
server from within the IDE using hotkeys.  If not, you can assign a

shortcut

to your desktop and stop/restart the server from the shortcut.

Celeste

-Original Message-
From: Jay [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, August 01, 2001 7:45 PM
To: JRun-Talk
Subject: bean newbie question


This should be simple.  I have created a bean, the first time I execute

a

JSP page that calls the bean, a class file is created for the bean and

the

jsp page in C:\test\WEB-INF\jsp.   I then have to move the bean.class

file

into the C:\test\WEB-INF\classes directory for my code to

execute.(because I

get a java.lang.NoClassDefFoundError: getmov)
 However, if I make a change to the source code of the bean and

reexecute,

it appears that the original class is still in memory and manifests it

self

when the JSP is executed thereby not reflecting the new changes. I have

Re: Newbie question/Debate

[Ben Groeneveld]

Bear in mind that's it's not so 1-2-3 as you make it sound. It is my 
understanding from the developer of the cobol .net compiler for hitachi 
that you must code in a proper subset of the language.  I think that if 
you want to use .net you are best coding in its native language c#.  BenG.

James Alexander wrote:

 Ummthats not quite correct. With .NET I can use any language I want,
 as long as it has a MSIL compiler. If I want to use Java, I can use
 Java. If I want to write an entire asp.net web app in C++ I can. Am I
 locked in if I choose to use C++? I can use any language I want. On top
 of that there are efforts underway for porting the .NET CLR (common
 language runtime) to other platforms for true platform independence.
 Pretty groovy huh? :)
 
 james
 
 -Original Message-
 From: Jackie Comeau [mailto:[EMAIL PROTECTED]] 
 Sent: Tuesday, July 24, 2001 10:28 AM
 To: JRun-Talk
 Subject: RE: Newbie question/Debate
 
 Good question.
 
 With Microsoft, your locked into Microsoft technologies. With Java, you
 can 
 select any platform you want. Also, if you move your platform, there is 
 little to no rewriting of code (I'm talking J2EE platform). You can go
 to 
 any server that is J2EE certified and just move your platform over.
 
 Another advantage is that it's evolving and merging with all the new 
 technologies out there. This may be more of a long-term benefit.
 
 As far as running as a platform/server language, it has a head-start
 over 
 Microsoft. Microsoft has not released it's .Net yet, has it? But J2EE
 has 
 been out since December, 1999.
 
 There are disadvantages with Java. It basically uses only the java 
 language. It works with other languages, but it is language-neutral.
 
 As a Java developer, your skills are more transferable. If your a
 Microsoft 
 developer, your locked into their skills.
 
 Jackie
 
 On Monday, July 23, 2001 10:09 PM, Bert [SMTP:[EMAIL PROTECTED]] 
 wrote:
 
 I know a lot of companies are using Java , Ejb , Oracle
 and Jsp but what are real the main benefits besides being cross
 
 platform
 
 than using Asp and Com,Com+ or Asp.net and C# . I know these are 
 
 Microsoft
 
 only platform but what is the real advantage as to using Java in the
 
 real
 
 world?
 
 
 

~~
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Re: Newbie question/Debate

[Ben Groeneveld]

One of the nice things I like is my ability to adjust and scale.  In my 
current project I am just butting up against 2gbyte file limits on std 
32bit intel linux.  I know I can easily upgrade to a pay-for-unix, get 
huge files, and don't have to worry about my apps written in 
java/servlet/oracle.  BenG.

Bert wrote:

 I know a lot of companies are using Java , Ejb , Oracle
 and Jsp but what are real the main benefits besides being cross platform
 than using Asp and Com,Com+ or Asp.net and C# . I know these are Microsoft
 only platform but what is the real advantage as to using Java in the real
 world?
 
 

~~
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Re: Servlet request object and multipart/form-data

[Ben Groeneveld]

Yes, the oreilly package is great.  The only limitation we found is the 
upload size being checked with a Java int which limits the size of 
uploads to 2G...  BenG.

Moore, Jim wrote:

 check out oreilly's servlet package. it contains a good multipart request
 handler class:
 
 http://www.servlets.com/cos/index.html
 
 --jim
 
 -Original Message-
 From: Nathan Wheat [mailto:[EMAIL PROTECTED]]
 Sent: Sunday, July 15, 2001 10:43 PM
 To: JRun-Talk
 Subject: Servlet request object and multipart/form-data
 
 
 Hi all,
 
 I'm reading values in from a form submission, and if the form is encoded
 with multipart/form-data, I can't seem to use the getParameter method to
 retrieve any values.  Am I being stupid, or is this in fact true?  What's
 the way to work with multipart forms??
 
 TIA,
 
 Nathan Wheat
 Technical Sales Consultant
 Firmware Design
 Phone:  0401 148 989
 Email:  [EMAIL PROTECTED]
 http://www.firmware.com.au
 
 Are you a Web Developer or Designer?
 Looking for an edge? If so, check out Web Design 2001
 Go to the link Below to find out more  register
 http://wd2001.firmware.com.au/ft

~~
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Re: JRun 3.1 Stability

[Ben Groeneveld]

Alpesh, we have most definately run into problems with jrun 3.1 
configured with jdk 1.3.1 and Oracle 8.1.6 on radhat 6.2.  SQL UPDATE 
statements don't work in the jrun:sql tag.  I would like to report this 
to Allaire because I've narrowed this down quite well, but they want 
your credit card to report bugs - so they suggested I report it to this 
list.  I have reported this issue 6/15:

 Has anyone else seen these issues when upgrading to 3.1?
 
 (1) 'update' statements fail to be parsed and run in the jsp:sql tag 
 resulting in an out of memory message
 (2) the sql tag scripting method .resetCursor() vanished and must be 
 replaced with .beforeFirst(), a java.sql.rowSet interface
 (3) the parser is much more sensitive to requiring scripting parameters 
 be enclosed in double quotes, but that's probably a good thing.  
 however, the line numbering info it returns is useless
 
 I haven't found a workaround to (1) so if anyone has please let me 
 know.  Thanks, BenG.


Alpesh Shah wrote:

 Is anyone running JRun 3.1 in production, and have their been any stability
 issues, or issues with Oracle.
 
 Alpesh Shah
 Principal/Director of Technology
 Revolutionary Systems, LLC
 
 Phone  908.668.4700
 Fax908.668.9045
 E-Mail [EMAIL PROTECTED]
 Webhttp://www.revsystems.com
 
 
 Archives: http://www.mail-archive.com/jrun-talk@houseoffusion.com/
 Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
 
 

-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488


~~
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jrun 3.1 sql tag issues

[Ben Groeneveld]

Has anyone else seen these issues when upgrading to 3.1?

(1) 'update' statements fail to be parsed and run in the jsp:sql tag 
resulting in an out of memory message
(2) the sql tag scripting method .resetCursor() vanished and must be 
replaced with .beforeFirst(), a java.sql.rowSet interface
(3) the parser is much more sensitive to requiring scripting parameters 
be enclosed in double quotes, but that's probably a good thing.  
however, the line numbering info it returns is useless

I haven't found a workaround to (1) so if anyone has please let me 
know.  Thanks, BenG.

-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488


~~
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bad magic number on NT crash

[Ben Groeneveld]

We seem to have a recurring problem with java servlet classes getting 
corrupted when NT gets shutdown ungracefully.  A recompile always solves 
the problem, but that's a big hassle.  I was wondering

(1) does anyone else have this problem?  a note is that our linux based 
servers don't see this and are using the same rev of JRun (3.01) and 
JDK(1.3).
(2) can I mitigate this by turning off any sessions or other objects 
JRun is trying to recover?

The log below is from jrun/logs/default-event.log.  The errors occurs on 
a jsp (f_req_maint) that is forwarded to from a servlet 
(f_req_maint_Servlet).  The jsp loads a bean, but it doesn't get that 
far.  Thanks, BenG. 
--

05/29 08:24:31 error (JRun) f_req_maint_Servlet.doGet [javax.servlet.ServletException: 
jrun__forms__f_req_maint2ejsp16 (Bad magic number)]
[1]java.lang.ClassFormatError: jrun__forms__f_req_maint2ejsp16 (Bad magic number)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
at java.lang.ClassLoader.defineClass(ClassLoader.java:426)
at allaire.jrun.servlet.JSPClassLoader.loadClass(JSPClassLoader.java:82)
at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
at 
allaire.jrun.servlet.JRunServletLoader.loadServletInstance(JRunServletLoader.java:221)
at 
allaire.jrun.servlet.JRunServletLoader.loadServletInstance(JRunServletLoader.java:190)
at 
allaire.jrun.servlet.JRunServletLoader.loadServlet(JRunServletLoader.java:177)
at allaire.jrun.servlet.JRunSE.getServletReference(JRunSE.java:1261)
at allaire.jrun.jsp.JSPServlet.loadServlet(JSPServlet.java:241)
at allaire.jrun.jsp.JSPServlet.loadPage(JSPServlet.java:181)
at allaire.jrun.jsp.JSPServlet.service(JSPServlet.java:169)
at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)
at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)
at 
allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java:88)
at f_req_maint_Servlet.doGet(f_req_maint_Servlet.java:113)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)
at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)
at 
allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java:88)
at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1131)
at allaire.jrun.servlet.JvmContext.dispatch(JvmContext.java:330)
at allaire.jrun.http.WebEndpoint.run(WebEndpoint.java:107)
at allaire.jrun.ThreadPool.run(ThreadPool.java:272)
at allaire.jrun.WorkerThread.run(WorkerThread.java:75)
[0]javax.servlet.ServletException: jrun__forms__f_req_maint2ejsp16 (Bad magic number)
at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:942)
at 
allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java:88)
at f_req_maint_Servlet.doGet(f_req_maint_Servlet.java:113)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)
at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)
at 
allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java:88)
at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1131)
at allaire.jrun.servlet.JvmContext.dispatch(JvmContext.java:330)
at allaire.jrun.http.WebEndpoint.run(WebEndpoint.java:107)
at allaire.jrun.ThreadPool.run(ThreadPool.java:272)
at allaire.jrun.WorkerThread.run(WorkerThread.java:75)

-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488


~~
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conversion of to lt;

[Ben Groeneveld]

Another conversion question - is there a class that can do these html 
safe conversions:

lt; represents the  sign
amp; represents the  sign
quot; represents the  mark

etc.  Thanks, BenG.

-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488


~~
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Re: getRowCount()

[Ben Groeneveld]

htmlhead/headbodyfont face="Courier New, Courier, mono"yc, it's
funny you ask because I just went thru the same.nbsp; The answer is in your std
java doc 'jdbc getting started guide' under:/fontbr
br
font face="Courier New, Courier, mono"5.1.4Determining the Number of Rows in a 
Result Set/fontbr
br
BenG.br
br
a class="moz-txt-link-abbreviated" href="mailto:[EMAIL PROTECTED]"[EMAIL PROTECTED]/a 
wrote:br
blockquote type="cite" cite="[EMAIL PROTECTED]">mid:[EMAIL PROTECTED]"pre 
wrap=""brbrAdditional Header Information:brReceived: from a 
class="moz-txt-link-abbreviated" 
href="http://www.houseoffusion.com"www.houseoffusion.com/a ([207.31.122.140]) by 
inside.pgi.com (LotusbrSMTP MTA v4.6.6  (890.1 7-16-1999)) with SMTP id 
85256A1F.005B3AFA; Fri, 30 Marbr2001 11:36:28 -0500brReceived: from 
houseoffusion.com ([207.31.122.140])br  by a 
class="moz-txt-link-abbreviated" 
href="http://www.houseoffusion.com"www.houseoffusion.com/a (Post.Office MTA 
v3.5.3brrelease 223br  ID# 0-54969U100L100S0V35) with ESMTP id combr 
 for a class="moz-txt-link-rfc2396E" 
href="mailto:[EMAIL PROTECTED]"lt;[EMAIL PROTECTED]gt;/a;br
  Fri, 30 Mar 2001 11:24:07 -0500brContent-type: text/plainbrContent-type: 
text/plainbrDate: Fri, 30 Mar 2001 11:15:18 -0500brFrom: Ed Apostol a 
class="moz-txt-link-rfc2396E" 
href="mailto:[EMAIL PROTECTED]"lt;[EMAIL PROTECTED]gt;/abrMessage-id:bra
 class="moz-txt-link-rfc2396E" 
href="[EMAIL PROTECTED]">mailto:[EMAIL PROTECTED]"lt;[EMAIL PROTECTED]gt;/abrSubject:
 correctionbrReply-To: a class="moz-txt-link-abbreviated" 
href="mailto:[EMAIL PROTECTED]"[EMAIL PROTECTED]/abrTo: 
JRun-Talk a class="moz-txt-link-rfc2396E" 
href="mailto:[EMAIL PROTECTED]"lt;[EMAIL PROTECTED]gt;/abrbrbr-brbrbrbrbrbrHi
 Eveyone,brDoes anyone knows how to get getRowCount() after I ran a query?brJRun 
tag, sql does support getRowCount(), If I don't use JRun's sql tag, how canbrI get 
the recordcount after i ran a query?brbrWhere can I find what else method does 
JRun sql tag support?brbrThank youbrbrYCbr
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[Fwd: servlet debugging]

[Ben Groeneveld]

Please let me clarify.  My issue is actually with a bean my .jsp's 
uses.  The bean is not reloaded after I recompile it.  Should it be?  
Thanks, BenG.

 Original Message 
Subject: servlet debugging
Date: Fri, 29 Dec 2000 10:29:17 -0700
From: Ben Groeneveld [EMAIL PROTECTED]
To: [EMAIL PROTECTED]



What's a good way to have servlets auto-reloaded when recompiled?  I 
looked though the manual and this was not obvious.  When I change a .jsp 
jrun seems to detect that and reload, but servlets don't (I'm using the 
invoker servlet shortcut).  What am I missing?  Currently I restart the 
default jrun server to debug, but this is painfully slow.  Thanks, BenG.


-- 
Ben Groeneveld 
Information Concepts, Inc., 115 N.W. Oregon, Suite 30, Bend, OR 97701
Mailto:[EMAIL PROTECTED], phone:541.388.3611, cell:208.520.6488


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Re: JRun Studio and Windows 98

[Ben Groeneveld]

Jim, I have not seen a memory leak (though it may be there), but I have 
seen jrun studio extremely cpu intensive, to the point where even if I 
shut everything down but studio my cpu is still pegged.  I've stopped 
using the product, which is unfortunate - because I liked it.  Good 
thing for demos...  BenG.

Jim Gillaspy wrote:

 JRun Studio appears to have a terrible memory leak when running on Windows 
 98 or Windows ME.  The system crashes after a few minutes of operation. 
  Sometimes after giving messages like "Your system is extremely low on 
 memory"  -- Is anyone else having this problem?  Any suggestions?
 
 Jim Gillaspy
 Director of Information Systems
 CMD Services, Inc.
 [EMAIL PROTECTED]
 678-475-2030
 
 

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RE: servlet debugging

[Ben Groeneveld]

Scott, thanks for responding.

At 01:14 AM 12/31/00 -0500, you wrote:
As long as the servlet class files are not in the JVM's classpath, they
should reload dynamically.

Our servlets are located in jrun/servers/default/myapp/WEB-INF/classes, 
which is not in my CLASSPATH; I don't think they should be.  The 
application is installed using makefiles, so we make use of the command 
line deploy and remove capabilities.  We use makefiles because our app is 
developed collaboratively, geographically speaking, via cvs.  We currently 
debug using the jrun event logging (jrun/logs) accessible from the servlet 
"context."

Also, it depends where you're putting the newly compiled classes.  In JRun
3.0 the /servlet/ mapping only works for the default-app, by default.

Please give more details about which version of JRun you're using and what
you application is set up like (where are you putting the servlet classes?).

We're using jrun 3.01 on redhat 6.2 with jdk 1.3 and oracle on the back 
end.  The config is standard I think, as described above.  Any help is 
welcome.  Restarting the server each run is slow.

Thanks, BenG.

You mentioned debugging in the subject.  A problem with a debugger may be
that the debugger JVM can't find the servlet classes unless they're in its
classpath, which will prevent them from being dynamically reloaded while
debugging.

Scott Stirling

  -Original Message-
  From: Ben Groeneveld [mailto:[EMAIL PROTECTED]]
 
  What's a good way to have servlets auto-reloaded when recompiled?  I
  looked though the manual and this was not obvious.  When I change a .jsp
  jrun seems to detect that and reload, but servlets don't (I'm using the
  invoker servlet shortcut).  What am I missing?  Currently I restart the
  default jrun server to debug, but this is painfully slow.  Thanks, BenG.



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servlet debugging

[Ben Groeneveld]

What's a good way to have servlets auto-reloaded when recompiled?  I 
looked though the manual and this was not obvious.  When I change a .jsp 
jrun seems to detect that and reload, but servlets don't (I'm using the 
invoker servlet shortcut).  What am I missing?  Currently I restart the 
default jrun server to debug, but this is painfully slow.  Thanks, BenG.


~ Paid Sponsorship ~
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Setup from SoloServer  PIII600 / 128 MB RAM / 20 GB HD / 24/7/365 Tech Support 
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JSP hosting

[Ben Groeneveld]

Can someone recommend a JSP hosting service?  JRun hosting preferred,
but other containers may work too.  In speaking with Allaire sales no
hosting services could be recommended. Thanks, BenG.


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Re: JSP hosting

[Ben Groeneveld]

Scott, Evan gave me the referenced list below which lists primarily CF
partners - not yet useful to me. I am still working with him to get
a list of JRun hosting firms; he has not yet responded to my followup,
which he normally has been very good about.
I would agree with your statement; I have already received several responses
with links to JSP hosting firms not on your list - perhaps because they
are not "partners": cniweb.net (Tomcat), hostjsp.com, and www.senternet.com.
Thanks, BenG.

Ben,

I have done some digging for you in regards to Jrun Hosting. I have
included a link below where you can take a look at the different companies
within the U.S. which host Jrun.

http://www.allaire.com/Partners/Search/PartnerList.cfm

Thank you,

Evan Sylvester
Allaire Corporation
275 Grove Street
Newton, MA. 02466
[EMAIL PROTECTED]
p: 617-219-5826
f: 617-219-2101



Scott Stirling wrote:
Is it true that Allaire sales couldn't recommend
anyone? That's pretty poor
if true. Who'd you talk to? We really need to beef up our
relationships
with ISPs/ASPs if that's the case. One of the new initiatives
announced at
the recent Allaire Developer Conference was one where we would be seeking
to
develop relationships with ASPs. ISPs should be part of that.
Scott Stirling
Allaire Corporation
http://www.allaire.com/developer/jrunreferencedesk/
> -Original Message-----
> From: Ben Groeneveld [mailto:[EMAIL PROTECTED]]
> Sent: Monday, November 27, 2000 2:56 PM
> To: JRun-Talk
> Subject: JSP hosting
>
>
> Can someone recommend a JSP hosting service? JRun hosting preferred,
> but other containers may work too. In speaking with Allaire
sales no
> hosting services could be recommended. Thanks, BenG.

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