Have you tried the Microsoft Type 4 JDBC driver?
It's free:
http://msdn.microsoft.com/downloads/default.asp?URL=/downloads/sample.asp?ur
l=/msdn-files/027/001/779/msdncompositedoc.xml
John Turner
[EMAIL PROTECTED]
-Original Message-
From: Kingston Sew [mailto:[EMAIL PROTECTED]]
Sent:
It is the JDBC-ODBC stuff. Unless there is NO OTHER POSSIBLE WAY to
connect to your database, do not ever use the JDBC-ODBC bridge except to
convert your data to another format.
It looks from the error that you are using M$ SQL Server. M$ has jdbc
drivers for SQL2000, but not for earlier versions
Hi,
It's your driver. The JDBC-ODBC approach tends to suck ;) Did you try
to the type 4 driver from MS? Or better yet, forget MS SQL and go to
MySQL or another more java-friendly database? If nothing else, try
doing MySQL approach just to validate that it's neither tomcat nor your
app that are
Do you really need to send so many messages? This kind of behavior tends
to cause others not to want to help.
Although not related to you , can we please also call an end to URGENT, and
PLEASE HELP! messages?
Adrian
- Original Message -
From: "Kingston Sew" <[EMAIL PROTECTED]>
To: <[
The jdbc-odbc bridge has some memory and other leaks. Don't use it. Get
the jdbc driver from MS for MSSql server, it should be better. Or get a
third party driver (but they cost money). I haven't used tomcat and ms sql,
but using jrun and ms sql (and the jdbc-odbc bridge) I had some similar
pr
nal Message-
> From: Mike Jackson [mailto:[EMAIL PROTECTED]]
> Sent: 20. ágúst 2002 16:29
> To: Tomcat Users List
> Subject: RE: Tomcat Crashes
>
>
> The jdbc-odbc bridge has some memory and other leaks. Don't
> use it. Get
> the jdbc driver from MS for MSSql
It's a thread-problem with the SUN JVM on linux. I posted a solution
that worked for me on 2001-04-26 with the subject "Re: Beating a dead
Horse I know but.".
Bye,
Peter.
--
Mag. Peter Hrastnik
tele.ring Telekom Service GmbH
A-1030 Wien, Hainburgerstr. 33
Tel.: +43/1/931012/3277, Mo
Peter Hrastnik <[EMAIL PROTECTED]> wrote:
> It's a thread-problem with the SUN JVM on linux. I posted a solution
> that worked for me on 2001-04-26 with the subject "Re: Beating a dead
> Horse I know but.".
Thanx for the information, altrough it doesnt work.
--
Eduard WitteveenSystee
Did you really set the environment:
In startup.sh you should add BEFORE the line where tomcat.sh is
executed:
_JAVA_SR_SIGNUM=16
export _JAVA_SR_SIGNUM
And if this really doesn't work, try to change your Java distribution.
The early beta of Sun Java 1.3.1 is known to have the bug fixed. You can
Two common causes of crashes, in my experience, are using the
JDBC-ODBC bridge (its not thread safe and when concurrent access occurs it
crashes the JVM). The other is in the JIT complilation. I've had a lot
less trouble with the newer JDKs (1.2.2_007) than the older ones (1.2.2_002
and
wow! even a little higher version of JDK do make a difference!
- Original Message -
From: Randy Layman <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, March 01, 2001 8:12 PM
Subject: RE: Tomcat Crashes
>
> Two common causes of crashes, in my experience, ar
You might also try a different VM ... IBM, for example.
Regards,
Ben Flaumenhaft
Principal, Sidelight Consulting
http://www.sidelight.com
- Original Message -
From: "Kishor K" <[EMAIL PROTECTED]>
To: "Tomcat User Mailing List" <[EMAIL PROTECTED]>
Sent: Thursday, March 01, 2001 2:57 AM
March 2001 11:13 PM
> To: [EMAIL PROTECTED]
> Subject: RE: Tomcat Crashes
>
>
>
> Two common causes of crashes, in my experience, are using the
> JDBC-ODBC bridge (its not thread safe and when concurrent access occurs it
> crashes the JVM). The other is in the JIT compli
Hi Kishor,
What is Dr.Watson error?
Regards
Dick Poon
- Original Message -
From: "Kishor K" <[EMAIL PROTECTED]>
To: "Tomcat User Mailing List" <[EMAIL PROTECTED]>
Sent: Thursday, March 01, 2001 6:57 PM
Subject: Tomcat Crashes
> hi,
> I have Tomcat 3.1 and jdk 1.2.2 on TWO Windows
gt; Subject: RE: Tomcat crashes with special URL
>
>
> Hi,
> Sweet error. A couple of things to check:
>
> - Does your server have the proper OS patches for JDK 1.4?
> - Have you tried JDK 1.4.1 (with the patches)?
> - What's this kyudo module, and is there a newer ver
Hi,
Sweet error. A couple of things to check:
- Does your server have the proper OS patches for JDK 1.4?
- Have you tried JDK 1.4.1 (with the patches)?
- What's this kyudo module, and is there a newer version of it? Have
you contacted the vendor / author of kyudo to ask about this error?
Yoav S
This is Judge Dean M. Trafelet. Your emails are improperly and incorrectly
being send to my email address. Remove my address immediately. DMT
- Original Message -
From: "Guy Katz" <[EMAIL PROTECTED]>
To: "Tomcat Users List"
Sent: Monday, May 02, 2005 11:11 AM
Subject: tomcat crashes wi
Ok, thank you all who answered.
I'll try a new driver and see if it makes a
difference.
I've seen the driver list on Sun's page, but since we
have a limited time to try and decide, which product
do you (or anyone else with experience in this field)
recommend ?
I'm particularly interested in succe
Hi,
Try the Sun JDK. Problems like these have been reported with JRockit on
linux, though I don't have time to search the archives/google for them
at the moment.
Yoav Shapira
Millennium Research Informatics
>-Original Message-
>From: John Farmer [mailto:[EMAIL PROTECTED]
>Sent: Tuesday
Tried the sun JDK it is way too slow.
--- "Shapira, Yoav" <[EMAIL PROTECTED]> wrote:
>
> Hi,
> Try the Sun JDK. Problems like these have been
> reported with JRockit on
> linux, though I don't have time to search the
> archives/google for them
> at the moment.
>
> Yoav Shapira
> Millennium Res
Hi,
>Tried the sun JDK it is way too slow.
Wow, how clear and unequivocal. Surely we must be dumb f***s who don't
care about performance at all if we use the Sun JDK. Thanks for
sharing. If you ever care to substantiate your remarks with benchmarks
specific to your app that'd be interesting,
>Surely we must be dumb f***s who don't
having a rough day, arent we? :)
Filip
- Original Message -
From: "Shapira, Yoav" <[EMAIL PROTECTED]>
To: "Tomcat Users List" <[EMAIL PROTECTED]>
Sent: Tuesday, May 04, 2004 3:46 PM
Subject: RE: Tomcat
Hi,
>having a rough day, arent we? :)
Yeah ;) Getting better by the minute though. There's nothing like some
venting...
Yoav
This e-mail, including any attachments, is a confidential business communication, and
may contain information that is confidential, proprietary and/or privileged.
Sorry man I didnt think it was the right time or place
to go into some kind of rant about the sun jdk. But
here was what I was seeing with the sun jdk. When
connecting straight to tomcat not using mod_jk. I
would open up 6 of any type of browser on my desktop,
all of them opening the same jsp pa
Hi,
>the same problem. But we didnt have any problems like
>that at all with jrockit. And jrockit has the jmeter
>tool to help me do better benchmarks. So my opinion
>is sun jdk is slow. You havent notice this problem
>with the sun jdk on linux?
JMeter has nothing to do with JRockit, it's a
On Wed, May 05, 2004 at 08:51:23AM -0400, Shapira, Yoav wrote:
: You may wish to file a bug report with Sun.
-and with BEA, as well, if JRockit has been the root of your stability
problems.
Call me old-fashioned... I'll take slow-and-steady over fast-and-crashy
any day. ;)
-QM
--
software -
Hi Dmitriy,
An old bug in Log4j (JdbcAppender) prior to 1.2.8 caused us a similar problem.
Regards
Roland Nygren
-Original Message-
From: "Dmitriy ." <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Date: Tue, 27 Jan 2004 12:17:07 -0500
Subject: Tomcat crashes during a stress test
Hi,
we have
Shravan,
I am able to use the O'Reilly classes to upload files in
Servlets/Tomcat/WinNT. I use a servlet to perform the upload rather than
doing it directly in a JSP. Can you tell me more about you upload config
(upload performed in servlet/JSP, where O'Reilly classes reside, etc.)
Leon
> Hi
Hi,
Still not any reply
Is there any tips for compiling tomcat for heavy load ?...
After changing few settings .. i can reach upto 1800 simultaneous
connections ... after that tomcat ... didn't send any reply(no more crash)...
Regards,
Santosh Pasi
---Original Message---
On Mon, Aug 13, 2001 at 11:01:24AM +0530, Santosh Pasi wrote:
> Hi,
>
> Still not any reply
>
> Is there any tips for compiling tomcat for heavy load ?...
> After changing few settings .. i can reach upto 1800 simultaneous
> connections ... after that tomcat ... didn't send any reply(no mo
Jeff Turner wrote:
>
> Well I think you're completely nuts :) For 10,000 concurrent requests for
> *dynamic* data (or else you'd just be using Apache.. right?), you'd need a
> server farm full of fancy equipment, a load-balancing server, and stuff that
> even my wildly ignorant speculations can't
Jeff Turner at [EMAIL PROTECTED] wrote:
> Well I think you're completely nuts :) For 10,000 concurrent requests for
> *dynamic* data (or else you'd just be using Apache.. right?), you'd need a
> server farm full of fancy equipment, a load-balancing server, and stuff that
> even my wildly ignorant
"Pier P. Fumagalli" wrote:
>
> It _can_ be done... Probably not in Java (I'm not that sure it can handle
> that many file descriptors open), but I've seen a Sun E4500 (fully
> populated) holding up 20k connections with 100 processes and 200 threads
> each... But it was a 1 million $$$ machine...
--
Date: Mon, 13 Aug 2001 22:31:33 +1000
>From: Jeff Turner <[EMAIL PROTECTED]>
>To: Santosh Pasi <[EMAIL PROTECTED]>
>Cc: [EMAIL PROTECTED]
>Subject: Re: Re: Tomcat crashes simultaneous more connection above 990+
>Mail-Followup-To: Santosh Pasi <[EMAIL PROTECTED
Santosh Pasi at [EMAIL PROTECTED] wrote:
> Hi Jeff,
>
> Thanks for your reply. And good link, really useful.
>
> Here are results of our troubleshoot :(
> On PIII 600, 256 Mb RAM, IDE Harddisk, RedHat Linux -
> total no. of max. connection 990-1000 and finally tomcat crashes. But
> still apac
Volano (makers of Volano Chat) is a company that is naturally interested
in servers that support lots of simultaneous threads. For several years
they've been publishing their benchmark results on the abilities of
various OS+JVM combinations to scale up to thread counts in the thousands.
There a
Does anyone try to apply that theory on Tomcat or Jetty or JBoss?
- Original Message -
From: "Aravind Naidu" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, August 11, 2001 5:50 PM
Subject: RE: Tomcat crashes simultaneous more connection above 990+
&g
lt;[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Tuesday, August 14, 2001 4:26 PM
Subject: Re: Tomcat crashes simultaneous more connection above 990+
> Does anyone try to apply that theory on Tomcat or Jetty or JBoss?
>
>
> - Original Message -
> From: "Aravind Na
age-
> From: Barnabas Yohannes [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, August 14, 2001 5:56 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Tomcat crashes simultaneous more connection above 990+
>
>
> Looks, like my webpage at tomcat is crashing because of many
> people
Peter Hrastnik <[EMAIL PROTECTED]> wrote:
> Did you really set the environment:
>
> In startup.sh you should add BEFORE the line where tomcat.sh is
> executed:
>
> _JAVA_SR_SIGNUM=16
> export _JAVA_SR_SIGNUM
>
> And if this really doesn't work, try to change your Java distribution.
> The early
TECTED]>
>Cc: [EMAIL PROTECTED]
>Subject: Re: Tomcat crashes simultaneous more connection above 990+
>Mail-Followup-To: Santosh Pasi <[EMAIL PROTECTED]>,
[EMAIL PROTECTED]>Content-Disposition: inline
>User-Agent: Mutt/1.3.19i
>
>On Mon, Aug 13, 2001 at 11:01:24AM +0530, San
Well I think you're completely nuts :) For 10,000 concurrent requests for
*dynamic* data (or else you'd just be using Apache.. right?), you'd need a
server farm full of fancy equipment, a load-balancing server, and stuff that
even my wildly ignorant speculations can't conceive.
Besides, I don't t
Hi folks,
coincidentally I am also having problems with large number of concurrent
connections to Tomcat
getting errors when we try and connect many clients concurrently to Tomcat.
Does anyone have experience of this sort of Tomcat usage or should we be
looking at a different servlet container
Let me guess, you use ajp13? Try going back to ajp12.
Try posting the stacktrace to tomcat-dev.. Hopefully they will care about
it.
Kenneth Topp
---
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On Tue, 31 Oct 2000, Shravan Shashikant wrote
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