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From Mikolaj Rydzewski <>
Subject Re: Tomcat uses more and more PermGen space
Date Mon, 03 Jan 2011 14:13:06 GMT

 On Mon, 03 Jan 2011 14:02:20 +0000, Pid <> wrote:

>> Windows XP
>> Java 1.6.0_22
>> Vanilla Tomcat 6.0.21
> Are you sure it's 6.0.21?  This version was not released.
> If you're using it in production you know what I'm going to suggest 
> you
> do, right?

 I misread console logs. Tomcat version is 6.0.29. It runs on JDK 
 6.0_21. I used apache-tomcat-6.0.29.exe installer bundled by apache 

>> I use jconsole to monitor PermGen space and I can observe that it 
>> slowly
>> increases. There are no other webapps deployed, nor any requests to
>> tomcat. Is it normal?
> So Tomcat, with no webapps, uses more PermGen over time?


> This would be a different issue than if your 6.0.21 has no apps 
> installed.

 I have no access to production environment now. I wanted to check 
 whether lambda webapp causes problem or no. PermGen was increasing faste 
 with lambda deployed, but it does still increase with no webapps!

 Mikolaj Rydzewski <>

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