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Date: Thu, 13 Dec 2007 14:25:59 +1000
From: Tim <mitstalks@gmail.com>
To: "Tomcat Users List" <users@tomcat.apache.org>, d.wall@computer.org
Subject: Re: Tomcat 5.5 OutOfMemoryError (PermGen space)
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References: <df422b860712121736q5bd27f3u7eb44565f9551087@mail.gmail.com>
	 <47609345.1080509@computer.org>
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I have the same problem.

I use Eclipse 3.3 and tomcat 5.5.25. Eclipse is set to "Build
Automatically". When I modified the code within Eclipse, it will
recompile and reload the tomcat context and the memory problem occurs
here every time.

I put tomcat <context/> in
${catalina.home}/conf/Catalina/localhost/appName.xml. It runs on
localhost and there is only one webapp.

Eclipse.ini
****
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
512M
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms512M
-Xmx1024M
****

appName.log
****
13/12/2007 14:14:30 org.apache.catalina.core.StandardContext reload
INFO: Reloading this Context has started
13/12/2007 14:14:32 org.apache.catalina.loader.WebappClassLoader validateJarFile
Exception in thread "Timer-0" java.lang.NullPointerException
	at org.apache.log4j.LogManager.getLogger(LogManager.java:179)
	at org.apache.log4j.Logger.getLogger(Logger.java:94)
	at org.apache.commons.logging.impl.Log4JLogger.getLogger(Log4JLogger.java:229)
	...
	...
****
Sometimes it reports Java OutOfMemory exception (java heap Space). I
can't figure out whose problem it is, Eclipse? tomcat, or the code.


On Dec 13, 2007 12:04 PM, David Wall <d.wall@computer.org> wrote:
>
> >
> > After some times, my Tomcat will stop responding and the stdout log
> > says OutOfMemoryError!
> >
> You could try increasing the perm space with the Java option:
> -XX:MaxPermSize=256m
>
> Obviously, you can choose any value you want.  We've seen the same
> problem on systems that have lots of webapps that are reloaded or newly
> deployed.  From time to time, we have to restart Tomcat 5.5 to get
> everything clean as we run lots of webapps (50-100) in a single Tomcat
> instance.
>
> David
>
>
>
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