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Posted to users@tomcat.apache.org by Matthew Boeckman <ma...@saepio.com> on 2002/05/01 18:07:56 UTC
OutofMemoryError
Hello List.
I'm running tomcat 3.1.1 on RH7.1, kernel 2.4.9-31 with JDK1.3.1, mysql
3.23.43
I am occasionally seeing tomcat go postal with the following errors:
Exception in thread "CompileThread0" java.lang.OutOfMemoryError:
requested 32760 bytes
****************
Another exception has been detected while we were handling last error.
No information available.
Please check ERROR REPORT FILE for further information, if there is any.
Good bye.
An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : 11 occurred at PC=0x419852cb
Function name=(N/A)
Library=(N/A)
NOTE: We are unable to locate the function name symbol for the error
just occurred. Please refer to release documentation for possible
reason and solutions.
Current Java thread:
****************
Another exception has been detected while we were handling last error.
Dumping information about last error:
ERROR REPORT FILE = (N/A)
PC = 0x0x419852cb
SIGNAL = 11
FUNCTION NAME = (N/A)
LIBRARY NAME = (N/A)
Please check ERROR REPORT FILE for further information, if there is any.
Good bye.
Any thoughts on what might be the cause? There is nothing in the log
files to tell me more than this, which gets dumped to the console.
-Thanks!
--
Matthew Boeckman (816) 777-2160
Manager - Systems Integration Saepio Technologies
==
==
...Many say that DOS is the dark side, but actually UNIX is more like
the dark side: It's less likely to find the one way to destroy your
incredibly powerful machine, and more likely to make upper management choke.
-Lore Sjoberg
--
To unsubscribe: <ma...@jakarta.apache.org>
For additional commands: <ma...@jakarta.apache.org>
Troubles with the list: <ma...@jakarta.apache.org>
RE: Re[2]: OutofMemoryError
Posted by Laurent Féral-Pierssens <la...@distincthorizon.com>.
Thanks, yes we can live with that. Actually, since we added those
changes it really improved the stability of the application. Those
suggestions were made on that list a few months ago.
Regards,
Laurent
-----Original Message-----
From: Jacob Kjome [mailto:hoju@visi.com]
Sent: May 1, 2002 2:52 PM
To: Tomcat Users List
Subject: Re[2]: OutofMemoryError
Hello Laurent,
Hmmm....
-Xincgc
Enable the incremental garbage collector. The incremental garbage
collector, which is off by default, will eliminate occasional
garbage-collection pauses during program execution. However, it can lead
to a roughly 10% decrease in overall GC performance
From:
http://java.sun.com/products/hotspot/2.0/README.html#use
If you can live with a 10% decrease in overall garbage collection
performance, then yeah, I guess use incremental garbage collection.
Jake
Wednesday, May 01, 2002, 12:35:37 PM, you wrote:
LFP> Hi Matthew,
LFP> I have been experiencing the same problems but with T3.2.x.
LFP> You should try to use Tomcat options -Xms and -Xmx
LFP> I added those 2 lines:
LFP> TOMCAT_OPTS="-server -Xms256m -Xmx256m -Xincgc"
LFP> export TOMCAT_OPTS
LFP> in my /etc/init.d/tomcat script
LFP> This increase the default heap size of the JVM to 256Meg (from
LFP> 64Meg) and make sure incremental Garbage collection is done. Since
LFP> I changed those, I have no more OutOfMemory errors.
LFP> Hope it helps,
LFP> Laurent
LFP> -----Original Message-----
LFP> From: Matthew Boeckman [mailto:matthewb@saepio.com]
LFP> Sent: May 1, 2002 12:08 PM
LFP> To: tomcat-user@jakarta.apache.org
LFP> Subject: OutofMemoryError
LFP> Hello List.
LFP> I'm running tomcat 3.1.1 on RH7.1, kernel 2.4.9-31 with JDK1.3.1,
mysql
LFP> 3.23.43
LFP> I am occasionally seeing tomcat go postal with the following
errors:
LFP> Exception in thread "CompileThread0" java.lang.OutOfMemoryError:
LFP> requested 32760 bytes
LFP> ****************
LFP> Another exception has been detected while we were handling last
error.
LFP> No information available. Please check ERROR REPORT FILE for
further
LFP> information, if there is any. Good bye.
LFP> An unexpected exception has been detected in native code outside
the VM.
LFP> Unexpected Signal : 11 occurred at PC=0x419852cb Function
name=(N/A)
LFP> Library=(N/A)
LFP> NOTE: We are unable to locate the function name symbol for the
error
LFP> just occurred. Please refer to release documentation for
possible
LFP> reason and solutions.
LFP> Current Java thread:
LFP> ****************
LFP> Another exception has been detected while we were handling last
error.
LFP> Dumping information about last error: ERROR REPORT FILE = (N/A)
LFP> PC = 0x0x419852cb
LFP> SIGNAL = 11
LFP> FUNCTION NAME = (N/A)
LFP> LIBRARY NAME = (N/A)
LFP> Please check ERROR REPORT FILE for further information, if there is
any.
LFP> Good bye.
LFP> Any thoughts on what might be the cause? There is nothing in the
log
LFP> files to tell me more than this, which gets dumped to the console.
LFP> -Thanks!
--
Best regards,
Jacob mailto:hoju@visi.com
--
To unsubscribe: <ma...@jakarta.apache.org>
For additional commands: <ma...@jakarta.apache.org>
Troubles with the list: <ma...@jakarta.apache.org>
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Re[2]: OutofMemoryError
Posted by Jacob Kjome <ho...@visi.com>.
Hello Laurent,
Hmmm....
-Xincgc
Enable the incremental garbage collector. The incremental garbage collector, which is off by default, will eliminate occasional garbage-collection pauses during program execution. However, it can lead to a roughly 10% decrease in overall GC performance
From:
http://java.sun.com/products/hotspot/2.0/README.html#use
If you can live with a 10% decrease in overall garbage collection
performance, then yeah, I guess use incremental garbage collection.
Jake
Wednesday, May 01, 2002, 12:35:37 PM, you wrote:
LFP> Hi Matthew,
LFP> I have been experiencing the same problems but with T3.2.x.
LFP> You should try to use Tomcat options -Xms and -Xmx
LFP> I added those 2 lines:
LFP> TOMCAT_OPTS="-server -Xms256m -Xmx256m -Xincgc"
LFP> export TOMCAT_OPTS
LFP> in my /etc/init.d/tomcat script
LFP> This increase the default heap size of the JVM to 256Meg (from 64Meg)
LFP> and make sure incremental Garbage collection is done. Since I changed
LFP> those, I have no more OutOfMemory errors.
LFP> Hope it helps,
LFP> Laurent
LFP> -----Original Message-----
LFP> From: Matthew Boeckman [mailto:matthewb@saepio.com]
LFP> Sent: May 1, 2002 12:08 PM
LFP> To: tomcat-user@jakarta.apache.org
LFP> Subject: OutofMemoryError
LFP> Hello List.
LFP> I'm running tomcat 3.1.1 on RH7.1, kernel 2.4.9-31 with JDK1.3.1, mysql
LFP> 3.23.43
LFP> I am occasionally seeing tomcat go postal with the following errors:
LFP> Exception in thread "CompileThread0" java.lang.OutOfMemoryError:
LFP> requested 32760 bytes
LFP> ****************
LFP> Another exception has been detected while we were handling last error.
LFP> No information available. Please check ERROR REPORT FILE for further
LFP> information, if there is any. Good bye.
LFP> An unexpected exception has been detected in native code outside the VM.
LFP> Unexpected Signal : 11 occurred at PC=0x419852cb Function name=(N/A)
LFP> Library=(N/A)
LFP> NOTE: We are unable to locate the function name symbol for the error
LFP> just occurred. Please refer to release documentation for possible
LFP> reason and solutions.
LFP> Current Java thread:
LFP> ****************
LFP> Another exception has been detected while we were handling last error.
LFP> Dumping information about last error: ERROR REPORT FILE = (N/A)
LFP> PC = 0x0x419852cb
LFP> SIGNAL = 11
LFP> FUNCTION NAME = (N/A)
LFP> LIBRARY NAME = (N/A)
LFP> Please check ERROR REPORT FILE for further information, if there is any.
LFP> Good bye.
LFP> Any thoughts on what might be the cause? There is nothing in the log
LFP> files to tell me more than this, which gets dumped to the console.
LFP> -Thanks!
--
Best regards,
Jacob mailto:hoju@visi.com
--
To unsubscribe: <ma...@jakarta.apache.org>
For additional commands: <ma...@jakarta.apache.org>
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Re: OutofMemoryError
Posted by David Cassidy <dc...@nisports.com>.
I found exactly the same thing ( memory usage climbing)
but when I removed the -Xincgc it's all OK
memory useage fine etc etc etc ...
D
Matthew Boeckman wrote:
> We have figured this out, although for the life of me I can't
> understand why. We had been running with java -server -Xms128m
> -Xmx256m -Xincgc and saw the VM climb way up to 2GB, then drop the
> tomcat process.
>
> By removing the -server flag, everything is fine. I realise this means
> that the JVM is defaulting to 'client'... so I guess is anyone aware
> of memory holes in the 1.3.1 JVM on linux? I've dug around deja &c and
> seen a few references to this suspicion but nothing concrete.
>
> I'm going to start working on Tomcat 4 and jdk1.4.0 in my lab this
> morning, hopefully the problem is fixed in 1.4.0!
>
> Thanks for all the responses!
>
>
> Jari Ikavalko wrote:
>
>> Hi Matthew and co.,
>>
>> have you tried to examine tomcat -behaviour with a profiler? I tried
>> with
>> OptimizeIt, and it seems to me that the Garbage Collector doesn't free
>> memory that is reserved for sessions. I mean that session itself ends
>> ok,
>> but the gc just won't free the memory.
>>
>> Does anyone else have noticed something similar?
>>
>> My system:
>> Windows 2000
>> JDK 1.4.0
>> Tomcat 4.0
>>
>> -- Jari Ikävalko --
>>
>>
>> On Wed, 1 May 2002, Matthew Boeckman wrote:
>>
>>
>>> Are you running java 1.3 or 1.4 ? We're really trying to nail this
>>> down. We've had the Xms and Xmx options in place now for some time,
>>> and the java proc just grows right past Xmx, up to nearly full
>>> system memory, then tomcat dies.
>>>
>>> I'm ready to hear any suggestions, but I want to try to narrow the
>>> scope somewhat.
>>>
>>> Laurent Féral-Pierssens wrote:
>>>
>>>> Hi Matthew,
>>>>
>>>> I have been experiencing the same problems but with T3.2.x.
>>>>
>>>> You should try to use Tomcat options -Xms and -Xmx
>>>>
>>>> I added those 2 lines:
>>>>
>>>> TOMCAT_OPTS="-server -Xms256m -Xmx256m -Xincgc"
>>>> export TOMCAT_OPTS
>>>>
>>>> in my /etc/init.d/tomcat script
>>>> This increase the default heap size of the JVM to 256Meg (from 64Meg)
>>>> and make sure incremental Garbage collection is done. Since I changed
>>>> those, I have no more OutOfMemory errors.
>>>>
>>>> Hope it helps,
>>>> Laurent
>>>>
>>>>
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: Matthew Boeckman [mailto:matthewb@saepio.com] Sent: May 1,
>>>> 2002 12:08 PM
>>>> To: tomcat-user@jakarta.apache.org
>>>> Subject: OutofMemoryError
>>>>
>>>>
>>>> Hello List.
>>>>
>>>> I'm running tomcat 3.1.1 on RH7.1, kernel 2.4.9-31 with JDK1.3.1,
>>>> mysql 3.23.43
>>>> I am occasionally seeing tomcat go postal with the following errors:
>>>> Exception in thread "CompileThread0" java.lang.OutOfMemoryError:
>>>> requested 32760 bytes
>>>>
>>>>
>>>> ****************
>>>> Another exception has been detected while we were handling last error.
>>>> No information available. Please check ERROR REPORT FILE for further
>>>> information, if there is any. Good bye.
>>>>
>>>> An unexpected exception has been detected in native code outside
>>>> the VM.
>>>> Unexpected Signal : 11 occurred at PC=0x419852cb Function name=(N/A)
>>>> Library=(N/A)
>>>>
>>>> NOTE: We are unable to locate the function name symbol for the error
>>>> just occurred. Please refer to release documentation for
>>>> possible
>>>> reason and solutions.
>>>>
>>>>
>>>> Current Java thread:
>>>>
>>>>
>>>> ****************
>>>> Another exception has been detected while we were handling last error.
>>>> Dumping information about last error: ERROR REPORT FILE = (N/A)
>>>> PC = 0x0x419852cb
>>>> SIGNAL = 11
>>>> FUNCTION NAME = (N/A)
>>>> LIBRARY NAME = (N/A)
>>>> Please check ERROR REPORT FILE for further information, if there is
>>>> any.
>>>> Good bye.
>>>>
>>>> Any thoughts on what might be the cause? There is nothing in the
>>>> log files to tell me more than this, which gets dumped to the console.
>>>>
>>>> -Thanks!
>>>>
>>>
>>>
>>> --
>>> Matthew Boeckman (816) 777-2160
>>> Manager - Systems Integration Saepio Technologies
>>> == ==
>>> ...Many say that DOS is the dark side, but actually UNIX is more
>>> like the dark side: It's less likely to find the one way to destroy
>>> your incredibly powerful machine, and more likely to make upper
>>> management choke.
>>> -Lore Sjoberg
>>>
>>>
>>> --
>>> To unsubscribe: <ma...@jakarta.apache.org>
>>> For additional commands: <ma...@jakarta.apache.org>
>>> Troubles with the list: <ma...@jakarta.apache.org>
>>>
>>
>>
>> --
>> To unsubscribe: <ma...@jakarta.apache.org>
>> For additional commands: <ma...@jakarta.apache.org>
>> Troubles with the list: <ma...@jakarta.apache.org>
>>
>>
>
>
--
To unsubscribe: <ma...@jakarta.apache.org>
For additional commands: <ma...@jakarta.apache.org>
Troubles with the list: <ma...@jakarta.apache.org>
Re: OutofMemoryError
Posted by Matthew Boeckman <ma...@saepio.com>.
We have figured this out, although for the life of me I can't understand
why. We had been running with java -server -Xms128m -Xmx256m -Xincgc
and saw the VM climb way up to 2GB, then drop the tomcat process.
By removing the -server flag, everything is fine. I realise this means
that the JVM is defaulting to 'client'... so I guess is anyone aware of
memory holes in the 1.3.1 JVM on linux? I've dug around deja &c and seen
a few references to this suspicion but nothing concrete.
I'm going to start working on Tomcat 4 and jdk1.4.0 in my lab this
morning, hopefully the problem is fixed in 1.4.0!
Thanks for all the responses!
Jari Ikavalko wrote:
> Hi Matthew and co.,
>
> have you tried to examine tomcat -behaviour with a profiler? I tried with
> OptimizeIt, and it seems to me that the Garbage Collector doesn't free
> memory that is reserved for sessions. I mean that session itself ends ok,
> but the gc just won't free the memory.
>
> Does anyone else have noticed something similar?
>
> My system:
> Windows 2000
> JDK 1.4.0
> Tomcat 4.0
>
> -- Jari Ikävalko --
>
>
> On Wed, 1 May 2002, Matthew Boeckman wrote:
>
>
>>Are you running java 1.3 or 1.4 ? We're really trying to nail this down.
>>We've had the Xms and Xmx options in place now for some time, and the
>>java proc just grows right past Xmx, up to nearly full system memory,
>>then tomcat dies.
>>
>>I'm ready to hear any suggestions, but I want to try to narrow the scope
>>somewhat.
>>
>>Laurent Féral-Pierssens wrote:
>>
>>>Hi Matthew,
>>>
>>>I have been experiencing the same problems but with T3.2.x.
>>>
>>>You should try to use Tomcat options -Xms and -Xmx
>>>
>>>I added those 2 lines:
>>>
>>>TOMCAT_OPTS="-server -Xms256m -Xmx256m -Xincgc"
>>>export TOMCAT_OPTS
>>>
>>>in my /etc/init.d/tomcat script
>>>
>>>This increase the default heap size of the JVM to 256Meg (from 64Meg)
>>>and make sure incremental Garbage collection is done. Since I changed
>>>those, I have no more OutOfMemory errors.
>>>
>>>Hope it helps,
>>>Laurent
>>>
>>>
>>>
>>>
>>>-----Original Message-----
>>>From: Matthew Boeckman [mailto:matthewb@saepio.com]
>>>Sent: May 1, 2002 12:08 PM
>>>To: tomcat-user@jakarta.apache.org
>>>Subject: OutofMemoryError
>>>
>>>
>>>Hello List.
>>>
>>>I'm running tomcat 3.1.1 on RH7.1, kernel 2.4.9-31 with JDK1.3.1, mysql
>>>3.23.43
>>>I am occasionally seeing tomcat go postal with the following errors:
>>>Exception in thread "CompileThread0" java.lang.OutOfMemoryError:
>>>requested 32760 bytes
>>>
>>>
>>>****************
>>>Another exception has been detected while we were handling last error.
>>>No information available. Please check ERROR REPORT FILE for further
>>>information, if there is any. Good bye.
>>>
>>>An unexpected exception has been detected in native code outside the VM.
>>>Unexpected Signal : 11 occurred at PC=0x419852cb Function name=(N/A)
>>>Library=(N/A)
>>>
>>>NOTE: We are unable to locate the function name symbol for the error
>>> just occurred. Please refer to release documentation for possible
>>> reason and solutions.
>>>
>>>
>>>Current Java thread:
>>>
>>>
>>>****************
>>>Another exception has been detected while we were handling last error.
>>>Dumping information about last error: ERROR REPORT FILE = (N/A)
>>>PC = 0x0x419852cb
>>>SIGNAL = 11
>>>FUNCTION NAME = (N/A)
>>>LIBRARY NAME = (N/A)
>>>Please check ERROR REPORT FILE for further information, if there is any.
>>>Good bye.
>>>
>>>Any thoughts on what might be the cause? There is nothing in the log
>>>files to tell me more than this, which gets dumped to the console.
>>>
>>>-Thanks!
>>>
>>
>>
>>--
>>Matthew Boeckman (816) 777-2160
>>Manager - Systems Integration Saepio Technologies
>>==
>> ==
>>...Many say that DOS is the dark side, but actually UNIX is more like
>>the dark side: It's less likely to find the one way to destroy your
>>incredibly powerful machine, and more likely to make upper management choke.
>> -Lore Sjoberg
>>
>>
>>--
>>To unsubscribe: <ma...@jakarta.apache.org>
>>For additional commands: <ma...@jakarta.apache.org>
>>Troubles with the list: <ma...@jakarta.apache.org>
>>
>
>
> --
> To unsubscribe: <ma...@jakarta.apache.org>
> For additional commands: <ma...@jakarta.apache.org>
> Troubles with the list: <ma...@jakarta.apache.org>
>
>
--
Matthew Boeckman (816) 777-2160
Manager - Systems Integration Saepio Technologies
==
==
...Many say that DOS is the dark side, but actually UNIX is more like
the dark side: It's less likely to find the one way to destroy your
incredibly powerful machine, and more likely to make upper management choke.
-Lore Sjoberg
--
To unsubscribe: <ma...@jakarta.apache.org>
For additional commands: <ma...@jakarta.apache.org>
Troubles with the list: <ma...@jakarta.apache.org>
Re: OutofMemoryError
Posted by Jari Ikavalko <ja...@cc.jyu.fi>.
Hi Matthew and co.,
have you tried to examine tomcat -behaviour with a profiler? I tried with
OptimizeIt, and it seems to me that the Garbage Collector doesn't free
memory that is reserved for sessions. I mean that session itself ends ok,
but the gc just won't free the memory.
Does anyone else have noticed something similar?
My system:
Windows 2000
JDK 1.4.0
Tomcat 4.0
-- Jari Ikävalko --
On Wed, 1 May 2002, Matthew Boeckman wrote:
> Are you running java 1.3 or 1.4 ? We're really trying to nail this down.
> We've had the Xms and Xmx options in place now for some time, and the
> java proc just grows right past Xmx, up to nearly full system memory,
> then tomcat dies.
>
> I'm ready to hear any suggestions, but I want to try to narrow the scope
> somewhat.
>
> Laurent Féral-Pierssens wrote:
> > Hi Matthew,
> >
> > I have been experiencing the same problems but with T3.2.x.
> >
> > You should try to use Tomcat options -Xms and -Xmx
> >
> > I added those 2 lines:
> >
> > TOMCAT_OPTS="-server -Xms256m -Xmx256m -Xincgc"
> > export TOMCAT_OPTS
> >
> > in my /etc/init.d/tomcat script
> >
> > This increase the default heap size of the JVM to 256Meg (from 64Meg)
> > and make sure incremental Garbage collection is done. Since I changed
> > those, I have no more OutOfMemory errors.
> >
> > Hope it helps,
> > Laurent
> >
> >
> >
> >
> > -----Original Message-----
> > From: Matthew Boeckman [mailto:matthewb@saepio.com]
> > Sent: May 1, 2002 12:08 PM
> > To: tomcat-user@jakarta.apache.org
> > Subject: OutofMemoryError
> >
> >
> > Hello List.
> >
> > I'm running tomcat 3.1.1 on RH7.1, kernel 2.4.9-31 with JDK1.3.1, mysql
> > 3.23.43
> > I am occasionally seeing tomcat go postal with the following errors:
> > Exception in thread "CompileThread0" java.lang.OutOfMemoryError:
> > requested 32760 bytes
> >
> >
> > ****************
> > Another exception has been detected while we were handling last error.
> > No information available. Please check ERROR REPORT FILE for further
> > information, if there is any. Good bye.
> >
> > An unexpected exception has been detected in native code outside the VM.
> > Unexpected Signal : 11 occurred at PC=0x419852cb Function name=(N/A)
> > Library=(N/A)
> >
> > NOTE: We are unable to locate the function name symbol for the error
> > just occurred. Please refer to release documentation for possible
> > reason and solutions.
> >
> >
> > Current Java thread:
> >
> >
> > ****************
> > Another exception has been detected while we were handling last error.
> > Dumping information about last error: ERROR REPORT FILE = (N/A)
> > PC = 0x0x419852cb
> > SIGNAL = 11
> > FUNCTION NAME = (N/A)
> > LIBRARY NAME = (N/A)
> > Please check ERROR REPORT FILE for further information, if there is any.
> > Good bye.
> >
> > Any thoughts on what might be the cause? There is nothing in the log
> > files to tell me more than this, which gets dumped to the console.
> >
> > -Thanks!
> >
>
>
> --
> Matthew Boeckman (816) 777-2160
> Manager - Systems Integration Saepio Technologies
> ==
> ==
> ...Many say that DOS is the dark side, but actually UNIX is more like
> the dark side: It's less likely to find the one way to destroy your
> incredibly powerful machine, and more likely to make upper management choke.
> -Lore Sjoberg
>
>
> --
> To unsubscribe: <ma...@jakarta.apache.org>
> For additional commands: <ma...@jakarta.apache.org>
> Troubles with the list: <ma...@jakarta.apache.org>
>
--
To unsubscribe: <ma...@jakarta.apache.org>
For additional commands: <ma...@jakarta.apache.org>
Troubles with the list: <ma...@jakarta.apache.org>
Re: OutofMemoryError
Posted by Matthew Boeckman <ma...@saepio.com>.
I noticed something about this on the tomcat 4.0 download site :
IMPORTANT NOTE: Virtual machine crashes have been reported when using
Linux 2.4 with Sun JVM version 1.2.x and 1.3.x. See the release notes
below for more details. (the release notes simply restate this rather
useless paragraph)
One would think that would have been somewhat more prominently displayed
somewhere, but I never saw it until I went to get 4.0.3 ...
We had seen the VM go past Xms before, but it only starts crashing in
certain fairly high session situations. I'm working on some tests for
jdk1.4.0 and TM 4.0.3 now. If that upgrade fixes this hole, I'll happily
post back to the list!
I'm glad to hear that I'm not crazy and that others have seen this.
-Matthew
Laurent Féral-Pierssens wrote:
> Matthew,
>
> We are using JDK 1.3.1_02. And yes we do see the process climbs very
> high (past the Xms) but it goes back down after without Tomcat dying.
>
> Laurent
>
>
> -----Original Message-----
> From: Matthew Boeckman [mailto:matthewb@saepio.com]
> Sent: May 1, 2002 4:22 PM
> To: Tomcat Users List
> Subject: Re: OutofMemoryError
>
>
> Are you running java 1.3 or 1.4 ? We're really trying to nail this down.
>
> We've had the Xms and Xmx options in place now for some time, and the
> java proc just grows right past Xmx, up to nearly full system memory,
> then tomcat dies.
>
> I'm ready to hear any suggestions, but I want to try to narrow the scope
>
> somewhat.
>
> Laurent Féral-Pierssens wrote:
>
>>Hi Matthew,
>>
>>I have been experiencing the same problems but with T3.2.x.
>>
>>You should try to use Tomcat options -Xms and -Xmx
>>
>>I added those 2 lines:
>>
>>TOMCAT_OPTS="-server -Xms256m -Xmx256m -Xincgc"
>>export TOMCAT_OPTS
>>
>>in my /etc/init.d/tomcat script
>>
>>This increase the default heap size of the JVM to 256Meg (from 64Meg)
>>and make sure incremental Garbage collection is done. Since I changed
>>those, I have no more OutOfMemory errors.
>>
>>Hope it helps,
>>Laurent
>>
>>
>>
>>
>>-----Original Message-----
>>From: Matthew Boeckman [mailto:matthewb@saepio.com]
>>Sent: May 1, 2002 12:08 PM
>>To: tomcat-user@jakarta.apache.org
>>Subject: OutofMemoryError
>>
>>
>>Hello List.
>>
>>I'm running tomcat 3.1.1 on RH7.1, kernel 2.4.9-31 with JDK1.3.1,
>>mysql
>>3.23.43
>>I am occasionally seeing tomcat go postal with the following errors:
>>Exception in thread "CompileThread0" java.lang.OutOfMemoryError:
>>requested 32760 bytes
>>
>>
>>****************
>>Another exception has been detected while we were handling last error.
>
>
>>No information available. Please check ERROR REPORT FILE for further
>>information, if there is any. Good bye.
>>
>>An unexpected exception has been detected in native code outside the
>>VM. Unexpected Signal : 11 occurred at PC=0x419852cb Function
>>name=(N/A)
>>Library=(N/A)
>>
>>NOTE: We are unable to locate the function name symbol for the error
>> just occurred. Please refer to release documentation for
>
> possible
>
>> reason and solutions.
>>
>>
>>Current Java thread:
>>
>>
>>****************
>>Another exception has been detected while we were handling last error.
>
>
>>Dumping information about last error: ERROR REPORT FILE = (N/A)
>>PC = 0x0x419852cb
>>SIGNAL = 11
>>FUNCTION NAME = (N/A)
>>LIBRARY NAME = (N/A)
>>Please check ERROR REPORT FILE for further information, if there is
>>any. Good bye.
>>
>>Any thoughts on what might be the cause? There is nothing in the log
>>files to tell me more than this, which gets dumped to the console.
>>
>>-Thanks!
>>
>
>
>
--
Matthew Boeckman (816) 777-2160
Manager - Systems Integration Saepio Technologies
==
==
...Many say that DOS is the dark side, but actually UNIX is more like
the dark side: It's less likely to find the one way to destroy your
incredibly powerful machine, and more likely to make upper management choke.
-Lore Sjoberg
--
To unsubscribe: <ma...@jakarta.apache.org>
For additional commands: <ma...@jakarta.apache.org>
Troubles with the list: <ma...@jakarta.apache.org>
RE: OutofMemoryError
Posted by Laurent Féral-Pierssens <la...@distincthorizon.com>.
Matthew,
We are using JDK 1.3.1_02. And yes we do see the process climbs very
high (past the Xms) but it goes back down after without Tomcat dying.
Laurent
-----Original Message-----
From: Matthew Boeckman [mailto:matthewb@saepio.com]
Sent: May 1, 2002 4:22 PM
To: Tomcat Users List
Subject: Re: OutofMemoryError
Are you running java 1.3 or 1.4 ? We're really trying to nail this down.
We've had the Xms and Xmx options in place now for some time, and the
java proc just grows right past Xmx, up to nearly full system memory,
then tomcat dies.
I'm ready to hear any suggestions, but I want to try to narrow the scope
somewhat.
Laurent Féral-Pierssens wrote:
> Hi Matthew,
>
> I have been experiencing the same problems but with T3.2.x.
>
> You should try to use Tomcat options -Xms and -Xmx
>
> I added those 2 lines:
>
> TOMCAT_OPTS="-server -Xms256m -Xmx256m -Xincgc"
> export TOMCAT_OPTS
>
> in my /etc/init.d/tomcat script
>
> This increase the default heap size of the JVM to 256Meg (from 64Meg)
> and make sure incremental Garbage collection is done. Since I changed
> those, I have no more OutOfMemory errors.
>
> Hope it helps,
> Laurent
>
>
>
>
> -----Original Message-----
> From: Matthew Boeckman [mailto:matthewb@saepio.com]
> Sent: May 1, 2002 12:08 PM
> To: tomcat-user@jakarta.apache.org
> Subject: OutofMemoryError
>
>
> Hello List.
>
> I'm running tomcat 3.1.1 on RH7.1, kernel 2.4.9-31 with JDK1.3.1,
> mysql
> 3.23.43
> I am occasionally seeing tomcat go postal with the following errors:
> Exception in thread "CompileThread0" java.lang.OutOfMemoryError:
> requested 32760 bytes
>
>
> ****************
> Another exception has been detected while we were handling last error.
> No information available. Please check ERROR REPORT FILE for further
> information, if there is any. Good bye.
>
> An unexpected exception has been detected in native code outside the
> VM. Unexpected Signal : 11 occurred at PC=0x419852cb Function
> name=(N/A)
> Library=(N/A)
>
> NOTE: We are unable to locate the function name symbol for the error
> just occurred. Please refer to release documentation for
possible
> reason and solutions.
>
>
> Current Java thread:
>
>
> ****************
> Another exception has been detected while we were handling last error.
> Dumping information about last error: ERROR REPORT FILE = (N/A)
> PC = 0x0x419852cb
> SIGNAL = 11
> FUNCTION NAME = (N/A)
> LIBRARY NAME = (N/A)
> Please check ERROR REPORT FILE for further information, if there is
> any. Good bye.
>
> Any thoughts on what might be the cause? There is nothing in the log
> files to tell me more than this, which gets dumped to the console.
>
> -Thanks!
>
--
Matthew Boeckman (816) 777-2160
Manager - Systems Integration Saepio Technologies
==
==
...Many say that DOS is the dark side, but actually UNIX is more like
the dark side: It's less likely to find the one way to destroy your
incredibly powerful machine, and more likely to make upper management
choke.
-Lore Sjoberg
--
To unsubscribe: <ma...@jakarta.apache.org>
For additional commands: <ma...@jakarta.apache.org>
Troubles with the list: <ma...@jakarta.apache.org>
--
To unsubscribe: <ma...@jakarta.apache.org>
For additional commands: <ma...@jakarta.apache.org>
Troubles with the list: <ma...@jakarta.apache.org>
Re: OutofMemoryError
Posted by Matthew Boeckman <ma...@saepio.com>.
Are you running java 1.3 or 1.4 ? We're really trying to nail this down.
We've had the Xms and Xmx options in place now for some time, and the
java proc just grows right past Xmx, up to nearly full system memory,
then tomcat dies.
I'm ready to hear any suggestions, but I want to try to narrow the scope
somewhat.
Laurent Féral-Pierssens wrote:
> Hi Matthew,
>
> I have been experiencing the same problems but with T3.2.x.
>
> You should try to use Tomcat options -Xms and -Xmx
>
> I added those 2 lines:
>
> TOMCAT_OPTS="-server -Xms256m -Xmx256m -Xincgc"
> export TOMCAT_OPTS
>
> in my /etc/init.d/tomcat script
>
> This increase the default heap size of the JVM to 256Meg (from 64Meg)
> and make sure incremental Garbage collection is done. Since I changed
> those, I have no more OutOfMemory errors.
>
> Hope it helps,
> Laurent
>
>
>
>
> -----Original Message-----
> From: Matthew Boeckman [mailto:matthewb@saepio.com]
> Sent: May 1, 2002 12:08 PM
> To: tomcat-user@jakarta.apache.org
> Subject: OutofMemoryError
>
>
> Hello List.
>
> I'm running tomcat 3.1.1 on RH7.1, kernel 2.4.9-31 with JDK1.3.1, mysql
> 3.23.43
> I am occasionally seeing tomcat go postal with the following errors:
> Exception in thread "CompileThread0" java.lang.OutOfMemoryError:
> requested 32760 bytes
>
>
> ****************
> Another exception has been detected while we were handling last error.
> No information available. Please check ERROR REPORT FILE for further
> information, if there is any. Good bye.
>
> An unexpected exception has been detected in native code outside the VM.
> Unexpected Signal : 11 occurred at PC=0x419852cb Function name=(N/A)
> Library=(N/A)
>
> NOTE: We are unable to locate the function name symbol for the error
> just occurred. Please refer to release documentation for possible
> reason and solutions.
>
>
> Current Java thread:
>
>
> ****************
> Another exception has been detected while we were handling last error.
> Dumping information about last error: ERROR REPORT FILE = (N/A)
> PC = 0x0x419852cb
> SIGNAL = 11
> FUNCTION NAME = (N/A)
> LIBRARY NAME = (N/A)
> Please check ERROR REPORT FILE for further information, if there is any.
> Good bye.
>
> Any thoughts on what might be the cause? There is nothing in the log
> files to tell me more than this, which gets dumped to the console.
>
> -Thanks!
>
--
Matthew Boeckman (816) 777-2160
Manager - Systems Integration Saepio Technologies
==
==
...Many say that DOS is the dark side, but actually UNIX is more like
the dark side: It's less likely to find the one way to destroy your
incredibly powerful machine, and more likely to make upper management choke.
-Lore Sjoberg
--
To unsubscribe: <ma...@jakarta.apache.org>
For additional commands: <ma...@jakarta.apache.org>
Troubles with the list: <ma...@jakarta.apache.org>
RE: OutofMemoryError
Posted by Laurent Féral-Pierssens <la...@distincthorizon.com>.
Hi Matthew,
I have been experiencing the same problems but with T3.2.x.
You should try to use Tomcat options -Xms and -Xmx
I added those 2 lines:
TOMCAT_OPTS="-server -Xms256m -Xmx256m -Xincgc"
export TOMCAT_OPTS
in my /etc/init.d/tomcat script
This increase the default heap size of the JVM to 256Meg (from 64Meg)
and make sure incremental Garbage collection is done. Since I changed
those, I have no more OutOfMemory errors.
Hope it helps,
Laurent
-----Original Message-----
From: Matthew Boeckman [mailto:matthewb@saepio.com]
Sent: May 1, 2002 12:08 PM
To: tomcat-user@jakarta.apache.org
Subject: OutofMemoryError
Hello List.
I'm running tomcat 3.1.1 on RH7.1, kernel 2.4.9-31 with JDK1.3.1, mysql
3.23.43
I am occasionally seeing tomcat go postal with the following errors:
Exception in thread "CompileThread0" java.lang.OutOfMemoryError:
requested 32760 bytes
****************
Another exception has been detected while we were handling last error.
No information available. Please check ERROR REPORT FILE for further
information, if there is any. Good bye.
An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : 11 occurred at PC=0x419852cb Function name=(N/A)
Library=(N/A)
NOTE: We are unable to locate the function name symbol for the error
just occurred. Please refer to release documentation for possible
reason and solutions.
Current Java thread:
****************
Another exception has been detected while we were handling last error.
Dumping information about last error: ERROR REPORT FILE = (N/A)
PC = 0x0x419852cb
SIGNAL = 11
FUNCTION NAME = (N/A)
LIBRARY NAME = (N/A)
Please check ERROR REPORT FILE for further information, if there is any.
Good bye.
Any thoughts on what might be the cause? There is nothing in the log
files to tell me more than this, which gets dumped to the console.
-Thanks!
--
Matthew Boeckman (816) 777-2160
Manager - Systems Integration Saepio Technologies
==
==
...Many say that DOS is the dark side, but actually UNIX is more like
the dark side: It's less likely to find the one way to destroy your
incredibly powerful machine, and more likely to make upper management
choke.
-Lore Sjoberg
--
To unsubscribe: <ma...@jakarta.apache.org>
For additional commands: <ma...@jakarta.apache.org>
Troubles with the list: <ma...@jakarta.apache.org>
--
To unsubscribe: <ma...@jakarta.apache.org>
For additional commands: <ma...@jakarta.apache.org>
Troubles with the list: <ma...@jakarta.apache.org>