RE: XP random tomcat crashes

2003-08-14 Thread dhay

We normally use the server jvm, but have also seen the crashes with the
client.

Any ideas?

Cheers,

David





Lenny Karpel [EMAIL PROTECTED] on 05/08/2003 06:42:45 PM

Please respond to Tomcat Users List [EMAIL PROTECTED]

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cc:
Subject:RE: XP random tomcat crashes


Are you using the client or server jvm ?

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 05, 2003 2:41 PM
To: [EMAIL PROTECTED]
Subject: XP random tomcat crashes

Hi,

We're using tomcat 4.1.12 with Java 1.4.1.02, and are encountering strange
crashes on XP especially.

The crashes happen in apparently random places in our app, and cause the VM
to crash with various messages, none of which are very helpful!

I noticed that Cameron Hart had a similar problem
(http://www.mail-archive.com/[EMAIL PROTECTED]/msg88603.html)
- please could anyone point me in the right direction to try and get to the
bottom of this.  Is it easy to run tomcat in a debugger so we can catch
what happens?

Many thanks,

David






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RE: XP random tomcat crashes

2003-08-14 Thread Lenny Karpel
Are you using the client or server jvm ?

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, August 05, 2003 2:41 PM
To: [EMAIL PROTECTED]
Subject: XP random tomcat crashes

Hi,

We're using tomcat 4.1.12 with Java 1.4.1.02, and are encountering strange
crashes on XP especially.

The crashes happen in apparently random places in our app, and cause the VM
to crash with various messages, none of which are very helpful!

I noticed that Cameron Hart had a similar problem
(http://www.mail-archive.com/[EMAIL PROTECTED]/msg88603.html)
- please could anyone point me in the right direction to try and get to the
bottom of this.  Is it easy to run tomcat in a debugger so we can catch
what happens?

Many thanks,

David






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To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]


XP random tomcat crashes

2003-08-07 Thread dhay
Hi,

We're using tomcat 4.1.12 with Java 1.4.1.02, and are encountering strange
crashes on XP especially.

The crashes happen in apparently random places in our app, and cause the VM
to crash with various messages, none of which are very helpful!

I noticed that Cameron Hart had a similar problem
(http://www.mail-archive.com/[EMAIL PROTECTED]/msg88603.html)
- please could anyone point me in the right direction to try and get to the
bottom of this.  Is it easy to run tomcat in a debugger so we can catch
what happens?

Many thanks,

David






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RE: XP random tomcat crashes

2003-08-06 Thread Morgan Pyne
Hi David,

The following might be of use to you:

We recently had a struts-based application that crashed seemingly randomly, and after 
a lot of work and debugging we tracked it down to a bug in the JVM (we were using 
Sun's 1.4.1 JDK ). It was reproduceable on several platforms (HP-UX, Linux, win2k).
We were not getting any dumps either on some of the platforms, the process seemed to 
just hang.

Note: testing showed IBM's JDK didn't exhibit this behaviour, but Blackdown did.

A workaround for us was to add the following parameters to Sun's 1.4.1 JVM:

-Xint   Operates in interpreted-only mode. 
 
-XrsReduce usage of operating-system signals by Java
virtual machine (JVM).


A fix for us was to upgrade to JDK 1.4.2

For more info, try posting the VM messages you are receving here. They may not be very 
helpful to you (or me:-) but perhaps somebody knowledgeable on the list might be able 
to make sense of them.


Regards,
Morgan



 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
 Sent: Tuesday, August 05, 2003 22:41
 To: [EMAIL PROTECTED]
 Subject: XP random tomcat crashes
 
 
 Hi,
 
 We're using tomcat 4.1.12 with Java 1.4.1.02, and are 
 encountering strange crashes on XP especially.
 
 The crashes happen in apparently random places in our app, 
 and cause the VM to crash with various messages, none of 
 which are very helpful!
 
 I noticed that Cameron Hart had a similar problem
 (http://www.mail-archive.com/[EMAIL PROTECTED]/msg88603.html
g88603.html)
- please could anyone point me in the right direction to try and get to the bottom of 
this.  Is it easy to run tomcat in a debugger so we can catch what happens?

Many thanks,

David






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To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]


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RE: XP random tomcat crashes

2003-08-06 Thread Shapira, Yoav

Howdy,
I would only offer the usual advice:
- Get the latest stable JDK (1.4.2)
- Get all the patches for your OS
- Get the latest stable tomcat (4.1.27)
- Start the VM with no switches and observe behavior, i.e. stick to
default client mode

Personally, I had problems with 1.4.1 in server mode on solaris that all
went away (without significant performance degradation) when I stopped
using the -server switch.  YMMV.

Yoav Shapira
Millennium ChemInformatics


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Wednesday, August 06, 2003 11:05 AM
To: Tomcat Users List
Subject: RE: XP random tomcat crashes


We normally use the server jvm, but have also seen the crashes with the
client.

Any ideas?

Cheers,

David





Lenny Karpel [EMAIL PROTECTED] on 05/08/2003 06:42:45 PM

Please respond to Tomcat Users List [EMAIL PROTECTED]

To:'Tomcat Users List' [EMAIL PROTECTED]
cc:
Subject:RE: XP random tomcat crashes


Are you using the client or server jvm ?

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 05, 2003 2:41 PM
To: [EMAIL PROTECTED]
Subject: XP random tomcat crashes

Hi,

We're using tomcat 4.1.12 with Java 1.4.1.02, and are encountering
strange
crashes on XP especially.

The crashes happen in apparently random places in our app, and cause
the VM
to crash with various messages, none of which are very helpful!

I noticed that Cameron Hart had a similar problem
(http://www.mail-archive.com/[EMAIL PROTECTED]/msg88603.ht
ml)
- please could anyone point me in the right direction to try and get to
the
bottom of this.  Is it easy to run tomcat in a debugger so we can catch
what happens?

Many thanks,

David






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Re: XP random tomcat crashes

2003-08-06 Thread srevilak
 From: dhay () lexmark ! com

 We're using tomcat 4.1.12 with Java 1.4.1.02, and are encountering
 strange crashes on XP especially.

 The crashes happen in apparently random places in our app, and cause
 the VM to crash with various messages, none of which are very
 helpful!

 I noticed that Cameron Hart had a similar problem
 (http://www.mail-archive.com/[EMAIL PROTECTED]/msg88603.html)

Just to be clear, this is a crash in the jvm itself (native code), as
opposed to say an unhandled Throwable (in java code)?

Historically, the jvm would usually generate a file whose name began
with hs_err_pid.  You might look for one of them (try the vm's current
working directory, or java.io.tmpdir).

On that level, your first bet might be to start looking for similar
problems in Sun's bug database.

  http://developer.java.sun.com/developer/bugParade/index.jshtml

-- 
Steve

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RE: XP random tomcat crashes

2003-08-06 Thread monror
How do you get taken off of this mailing list?

-Original Message-
From: Shapira, Yoav [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, August 06, 2003 11:34 AM
To: Tomcat Users List
Subject: RE: XP random tomcat crashes



Howdy,
I would only offer the usual advice:
- Get the latest stable JDK (1.4.2)
- Get all the patches for your OS
- Get the latest stable tomcat (4.1.27)
- Start the VM with no switches and observe behavior, i.e. stick to default
client mode

Personally, I had problems with 1.4.1 in server mode on solaris that all went
away (without significant performance degradation) when I stopped using the
-server switch.  YMMV.

Yoav Shapira
Millennium ChemInformatics


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Wednesday, August 06, 2003 11:05 AM
To: Tomcat Users List
Subject: RE: XP random tomcat crashes


We normally use the server jvm, but have also seen the crashes with the 
client.

Any ideas?

Cheers,

David





Lenny Karpel [EMAIL PROTECTED] on 05/08/2003 06:42:45 PM

Please respond to Tomcat Users List [EMAIL PROTECTED]

To:'Tomcat Users List' [EMAIL PROTECTED]
cc:
Subject:RE: XP random tomcat crashes


Are you using the client or server jvm ?

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 05, 2003 2:41 PM
To: [EMAIL PROTECTED]
Subject: XP random tomcat crashes

Hi,

We're using tomcat 4.1.12 with Java 1.4.1.02, and are encountering
strange
crashes on XP especially.

The crashes happen in apparently random places in our app, and cause
the VM
to crash with various messages, none of which are very helpful!

I noticed that Cameron Hart had a similar problem 
(http://www.mail-archive.com/[EMAIL PROTECTED]/msg88603.ht
ml)
- please could anyone point me in the right direction to try and get to
the
bottom of this.  Is it easy to run tomcat in a debugger so we can catch 
what happens?

Many thanks,

David






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To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]









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To unsubscribe, e-mail: [EMAIL PROTECTED]
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communication, and may contain information that is confidential, proprietary
and/or privileged.  This e-mail is intended only for the individual(s) to whom
it is addressed, and may not be saved, copied, printed, disclosed or used by
anyone else.  If you are not the(an) intended recipient, please immediately
delete this e-mail from your computer system and notify the sender.  Thank you.


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