Re: Help! Need connection pooling for tc4.

2002-05-24 Thread David Hewlett

I use poolman successfully with tomcat.
Get the source and compile it there is an important bug corrected that is not 
included in the last distribution!

Regards,

David.

On Friday 24 May 2002 3:50 pm, you wrote:
 Hi,



   we are about to deploy an application to production and just learned that
   tomcat 4.0.3 doesn't seem to pool connections. Is there any
 connection pool (datasource style) available?



   As it is an intrantet application we are about to deploy and we already
 know that we will have 700 concurrent users this topic is quite pressing
 for us. Any insights will be appreciated.



   Btw. I tried tc4.1, but besides printing a message to stdout I get no
 sign that it is pooling connections.



 Cheers,

 Mariano

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Re: INSTALLING TOMCAT - PART II

2002-01-28 Thread David Hewlett

Hi,

Had the same problem. Does not seem to effect everyone though...
It is strange that no one appears to know why.
But the solution which always apparently works is to go for j2sdk1.4 - it did 
for me and others.
I wish you every luck.

On Monday 28 January 2002 2:10 pm, you wrote:
 Okey..

 Lets start now the second part of this issue.

 I've installed TOMCAT (downloaded from
 http://jakarta.apache.org/builds/jakarta-tomcat-4.0/nightly/ and I saw on
 the documentation that I'm supposed to run the
 CATALINA_HOME/bin/./startup.sh

 Well I did it.

 and look what I got back:

 root@omega:~/jakarta-tomcat-4.0/bin# ./startup.sh
 Using CATALINA_BASE:   /root/jakarta-tomcat-4.0
 Using CATALINA_HOME:   /root/jakarta-tomcat-4.0
 Using CATALINA_TMPDIR: /root/jakarta-tomcat-4.0/temp
 Using JAVA_HOME:   /etc/jdk1.3.1_02
 root@omega:~/jakarta-tomcat-4.0/bin#

 Is it running?? How can I know?? grep tomcat doesnt show anything..

 I'm still needing help, thank you all for helping me!


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Re: canno startup Tomcat 4.0.1 - how to nobble JSP?

2002-01-27 Thread David Hewlett

Yes, of course a serious typo! it was of course 4.0.2-b2!
I could have used 4.0.1 but decided it made sense to look ahead while i could.
We may conclude then that something, unknown, didnt gel between jdk 1.3.1 and 
Tomcat and we will never know. I
However i remain very curious as  i know of happily working configuration 
with just 1.3.1 that worked and continue to work just fine!! And judging by 
the reports this failure has been see on more than one version of unix too.

Ah, i see that nobody has risen to my comment on JSP. Seriously i would like 
to avoid initiating JSP not because i would prefer to work under the runtime 
(but of course i would) but because GENUINELY i won't use it.
If anybody, with an open mind that is, would like to look at the competing 
templating technology (see for example:  webmacro.org. )
It makes a true separation of the art of web design and the server side java 
developer: who no longer need to be one subserviated to the other, nor a need 
to use up valuable development time by needing to sit down together anything 
like as much!


Regards,

Dave.

On Sunday 27 January 2002 5:17 pm, you wrote:
 j2sdk1.4.0 was all that I needed to get Tomcat 4.0.1 or 4.0.2-b2 to work.
 Tomcat 4.0.2-b2 didn't work on the old JVM either, BTW.  I'm going to stick
 wtih Tomcat 4.0.1.

 (BTW: Not sure what you mean by Tomcat 1.4, I'm assuming that it was a
 typo.)

 Thanks.

 -John Kalucki

 At 09:33 PM 1/26/2002 +, you wrote:
 Micael,
 
 After dowloading j2sdk1.4 and Tomcat 1.4 it worked straightaway!
 I can only conclude that a particular version pair was the cause and like
  i always join the slowest supermarket queue
 Admittedly these versions are all beta however this does not hurt me right
 now and i will proceed from here.
 Ah, there is one question you might no the answer to. Apparentely the only
 reason the jdk rather than the jre is used by Tomcat is in the support of
  jsp. Since i do not intend to use jsp at all(there is much better
  technology e.g. webmacro) ...Q How to disable the initilisation of JSP?
 
 Thanks. for your support...
 
 Regards,
 
 David.

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Re: canno startup Tomcat 4.0.1 - how to nobble JSP?

2002-01-26 Thread David Hewlett

Micael,

After dowloading j2sdk1.4 and Tomcat 1.4 it worked straightaway!
I can only conclude that a particular version pair was the cause and like i 
always join the slowest supermarket queue
Admittedly these versions are all beta however this does not hurt me right 
now and i will proceed from here.
Ah, there is one question you might no the answer to. Apparentely the only 
reason the jdk rather than the jre is used by Tomcat is in the support of jsp.
Since i do not intend to use jsp at all(there is much better technology e.g. 
webmacro) ...Q How to disable the initilisation of JSP?

Thanks. for your support...

Regards,

David.

On Friday 25 January 2002 7:57 am, you wrote:
 I downloaded a new copy of Tomcat and the problems disappeared.

 At 11:40 AM 1/22/02 +, you wrote:
 Despite the good advice to carefully go through the documentation again
  the 'problem' still persists :  It appears neither to start nor to fail?
  glibc version is 2.2.4-21
 jdk is 1.3.1
 
 i have set: ulimit -s 2048
 and: export LD_ASSUME_KERNEL=2.2.5
 
 I see i am not alone as two others report similar problem.
 Yet a colleague of mine on, i am quite sure, the same level of suse 7.3
  jdk etc has succeeded immediately. The only known difference is that my
  colleague has made a clean install while mine was an upgrade from 7.2  Q.
  Can there be a remnant from an older installation of tomcat that could be
  the cause?
 
 The log for the startup gives just a one line comment as follows:
 
 2002-01-22 09:55:43 HttpConnector Opening server socket on all host IP
 addresses
 
 but their is no reported failure! Indeed an active process is created.
 
 but despite the implication tht it is listening on the specified port an
  http request cannot connect to the port. (Other ports are working fine.
  e.g apache/jserv)
 
 I have also tried setting another unused port other than 8080 to no
  avail... The problem appears to be something more basic?
 
 Regards,
 
 David.
 
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Re: canno startup Tomcat 4.0.1

2002-01-25 Thread David Hewlett



On Friday 25 January 2002 7:57 am, you wrote:
 I downloaded a new copy of Tomcat and the problems disappeared.

Thanks, I will try the same.

 At 11:40 AM 1/22/02 +, you wrote:
 Despite the good advice to carefully go through the documentation again
  the 'problem' still persists :  It appears neither to start nor to fail?
  glibc version is 2.2.4-21
 jdk is 1.3.1
 
 i have set: ulimit -s 2048
 and: export LD_ASSUME_KERNEL=2.2.5
 
 I see i am not alone as two others report similar problem.
 Yet a colleague of mine on, i am quite sure, the same level of suse 7.3
  jdk etc has succeeded immediately. The only known difference is that my
  colleague has made a clean install while mine was an upgrade from 7.2  Q.
  Can there be a remnant from an older installation of tomcat that could be
  the cause?
 
 The log for the startup gives just a one line comment as follows:
 
 2002-01-22 09:55:43 HttpConnector Opening server socket on all host IP
 addresses
 
 but their is no reported failure! Indeed an active process is created.
 
 but despite the implication tht it is listening on the specified port an
  http request cannot connect to the port. (Other ports are working fine.
  e.g apache/jserv)
 
 I have also tried setting another unused port other than 8080 to no
  avail... The problem appears to be something more basic?
 
 Regards,
 
 David.
 
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Re: failure of Tomcat standalone to start

2002-01-24 Thread David Hewlett

Bruce,

Perhaps a clue to the problem.

I attempted to start tomcat standalone under a debugger. i.e. ./bin/catalina 
debug
Then issue the command: run

I then obtained the following error message:

Exception occurred: java.lang.NoSuchMethodError (uncaught) thread=main,  
org.apache.catalina.core.StandardServer.start(), line=502, bci=95
java.lang.reflect.InvocationTargetException: java.lang.NoSuchMethodError
at 
org.apache.catalina.core.StandardContext.postWorkDirectory(StandardContext.java:3919)
at 
org.apache.catalina.core.StandardContext.start(StandardContext.java:3328)
at 
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1123)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:612)
at 
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1123)
at 
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:307)
at 
org.apache.catalina.core.StandardService.start(StandardService.java:388)
at 
org.apache.catalina.core.StandardServer.start(StandardServer.java:505)
at org.apache.catalina.startup.Catalina.start(Catalina.java:776)
at org.apache.catalina.startup.Catalina.execute(Catalina.java:681)
at org.apache.catalina.startup.Catalina.process(Catalina.java:179)
at java.lang.reflect.Method.invoke(Native Method)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243)


I do not have the source but this may well be the reason why it fails to 
start with no message in the log.

Have you the means to guess at the reason behind this?

Regards,

David.




On Tuesday 22 January 2002 1:59 pm, you wrote:
 I don't think that there is a permissions issue as I
 tested this as root and the problem still occurred for
 me.

 The one point that you raised does need investigation.
 A clean install. I have previous versions of Tomcat
 installations on my machine (3.2, 3.1). Although you
 are supposed to be able to run them without
 interference controlled by JAVA_HOME, TOMCAT_HOME, 
 CATALINA_HOME, maybe there is an issue here?

 Let's stay on the case,

 Bruce

 --- David Hewlett [EMAIL PROTECTED] wrote:
  Thanks,
 
  Good information indeed. But this makes me very
  curious.
  For a colleague did succeed with JDK1.3.1!
 
  There is a mystery here. Maybe related to
  permissions?
 
  Regards,
 
  David.
 
  On Tuesday 22 January 2002 2:36 am, you wrote:
   Hello David, Michael.
  
   I downloaded the j2sdk 1.4 beta 3 (actually the
 
  one
 
   with forte bundled with it) and changed my
 
  JAVA_HOME
 
   environment variable to point to this installation
 
  and
 
   it worked.
  
   Of course, this sdk is beta. If you could live
 
  with
 
   that then you can explore tomcat 4. Let me know if
 
  you
 
   find anything new.
  
   Thanks,
  
   Bruce
  
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re: canno startup Tomcat 4.0.1

2002-01-22 Thread David Hewlett



Despite the good advice to carefully go through the documentation again the 
'problem' still persists :  It appears neither to start nor to fail?
glibc version is 2.2.4-21
jdk is 1.3.1

i have set: ulimit -s 2048
and: export LD_ASSUME_KERNEL=2.2.5

I see i am not alone as two others report similar problem. 
Yet a colleague of mine on, i am quite sure, the same level of suse 7.3 jdk 
etc has succeeded immediately. The only known difference is that my colleague 
has made a clean install while mine was an upgrade from 7.2  Q. Can there be 
a remnant from an older installation of tomcat that could be the cause?

The log for the startup gives just a one line comment as follows: 

2002-01-22 09:55:43 HttpConnector Opening server socket on all host IP 
addresses

but their is no reported failure! Indeed an active process is created.

but despite the implication tht it is listening on the specified port an http 
request cannot connect to the port. (Other ports are working fine. e.g 
apache/jserv)

I have also tried setting another unused port other than 8080 to no avail...
The problem appears to be something more basic?

Regards,

David.

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Re: Asynchronous messages from servlets

2002-01-22 Thread David Hewlett

On Tuesday 22 January 2002 8:50 am, you wrote:
 Hi,

 I have the following problem. A simple form submits data
 to a servlet. The servlet sends a message via JMS to
 another application (in another JVM). Once the message
 has been sent, the 'service' method of the servlet ends.
 After a while, say five seconds, the other application would
 like to send back a response. How do I show this response
 to the user?

 Since the 'service' method has finished after sending the
 message, I have lost control over the output from the other
 application.

 What I need is a way to push the response to the browser. I
 would like the server to take the initiative in updating the browser
 window, not the user. Is this possible in any way?

 Thanks in advance,
 Ronald Wildenberg
You could do the following. If the client has JVM and permissions can be 
arranged to listen on a specific port (and any firewalls are going to allow 
the traffic etc)  then:
When sending your small form include a java applet that creates a task that 
simply listens on  a specific port.
Your asynchronous process can then return a message to that port. 

This has been done. (with IBM MQSeries java API)

Good Luck  regards,

David.

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canno startup Tomat 4.0.1

2002-01-21 Thread David Hewlett

This is my first attempt at Tomcat. I know other people succeeded directly 
with with the standalone version - however it doesn't seem to fire up on suse 
7.3 kernel 2 4 13


Up to now i have used apache  jserv with no problems. (which currently must 
continue to reside on the system)

I started tomcat up with ?startup.sh. Just the following occurs:

linux:/opt/jakarta-tomcat-4.0.1 # ./bin/startup.sh
Using CLASSPATH: 
/opt/jakarta-tomcat-4.0.1/bin/bootstrap.jar:/usr/lib/jdk1.3.1/lib/tools.jar
Using CATALINA_BASE: /opt/jakarta-tomcat-4.0.1
Using CATALINA_HOME: /opt/jakarta-tomcat-4.0.1
Using JAVA_HOME: ? ? /usr/lib/jdk1.3.1

When attempting: http://localhost:8080/

The message: Could not connect to localhost (port 8080) is received.

Can anyone shed light on what can be wrong?
This is standalone if i understand well and not using apache web server 
(which is up and running with jserv.)

The three reasons given for failure to start appear not to be the case. What 
else is there please?


Regards,

David.


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