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Posted to users@tomcat.apache.org by Jacob Kjome <ho...@visi.com> on 2002/05/01 20:52:13 UTC
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 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
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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>
--
To unsubscribe: <ma...@jakarta.apache.org>
For additional commands: <ma...@jakarta.apache.org>
Troubles with the list: <ma...@jakarta.apache.org>