JVM memory initializazion error after windows update

Posted by Pier Luigi on Stack Overflow See other posts from Stack Overflow or by Pier Luigi
Published on 2010-03-16T08:17:50Z Indexed on 2010/03/17 12:41 UTC
Read the original article Hit count: 446

Filed under:

jvm

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heap-memory

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windows-server-2003

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tomcat

Hi all, I have three Windows Server 2003 with 2 GB RAM.

Server1 tomcat 5.5.25 jvm version SUN 1.6.0_11-b03
Server2 tomcat 5.5.25 jvm version SUN 1.6.0_14-b08
Server3 tomcat 6.0.18 jvm version SUN 1.6.0_14-b08

For the three servers JVM parameters are:

 -XX:MaxPermSize=256m
 -Dcatalina.base=C:\Apache Group\apache-tomcat-5.5.25
 -Dcatalina.home=C:\Apache Group\apache-tomcat-5.5.25
 -Djava.endorsed.dirs=C:\Apache Group\apache-tomcat-5.5.25\common\endorsed
 -Djava.io.tmpdir=C:\Apache Group\apache-tomcat-5.5.25\temp vfprintf
 -Xms512m
 -Xmx1024m

For some months everithing worked fine. Last friday we installed some windows updates. After the reboot tomcat doesn't start anymore, with error:

   Error occurred during initialization of VM
   Could not reserve enough space for object heap

We reduced the parameter -Xmx1024m to -Xmx768m and now tomcat starts. But we need greater max heap size What happened to our servers ? Thanks in advance.

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