Question

i am running tomcat 7.0.33 on windows server 2008 R2
(i installed tomcat as windows service)

• JDK version: jdk1.6.0_25 64-bit

• Tomcat options:

  1. Java Virtual Machine: C:\Program Files\Java\jre6\bin\server\jvm.dll
     (BTW, i don’t have client folder inside jre)
  2. Initial memory pool: 1000 MB

  3. Maximum memory pool: 2000 MB

     when i check the server status, i can see that the server is using
     the memory i configured.

  4. Environment Variables (SYSTEM VARIABLES) Configuration:

     • JAVA_HOME: C:\Program Files\Java\jdk1.6.0_25
     • Path: ...;%JAVA_HOME%\bin;....

do i need to add CATALINA_HOME and JAVA_OPTS system variables too ?

ISSUE: i have two web applications APP1,*APP2*
when i deploy each one separately, i can find that memory use for

APP1= 198 MB
APP2= 104 MB

Information about the applications:

APP1,APP2: Spring Maven applications that includes in the libraries other small maven spring applications.

APP1: contains webservices, that APP2 uses them.

if i tried to deploy both of them on same tomcat instance, i always get

java.lang.OutOfMemoryError: PermGen space

please advise what might be causing this issue.

Answer 1

the solution was beside setting initial & maximum memory pool, is to add -XX:MaxPermSize=1000m to the java options in the java tab.