JVM memory initializazion error after windows update

Posted by gianni on Server Fault See other posts from Server Fault or by gianni
Published on 2010-03-15T09:57:31Z Indexed on 2012/10/14 9:40 UTC
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We 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:\Programmi\Apache Group\apache-tomcat-5.5.25
 -Dcatalina.home=C:\Programmi\Apache Group\apache-tomcat-5.5.25
 -Djava.endorsed.dirs=C:\Programmi\Apache Group\apache-tomcat-5.5.25\common\endorsed
 -Djava.io.tmpdir=C:\Programmi\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 doesnt start 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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