java.lang.OutOfMemoryError：PermGen空间

Question

i'm getting the following error "http-9000-5" java.lang.OutOfMemoryError: PermGen space

org.apache.catalina.core.ApplicationDispatcher invoke SEVERE: Servlet.service() for servlet jsp threw exception java.lang.OutOfMemoryError: PermGen space.

My application using axis2.I increased the heap size 1024mb.But its not working.What would be the problem.Solution please

Answer 1

PermGen and heap size are different from each other.

You need to increase permgen space like this:

-XX:PermSize=256m 
-XX:MaxPermSize=256m

add this flags.

Also look at this: explaining-java-lang-outofmemoryerror-permgen-space and this: how-to-deal-with-java-lang-outofmemoryerror-permgen-space-error

Hope this helps.

Answer 2

you need to set something in your tomcat argument

JAVA_OPTS="-Djava.awt.headless=true -Dfile.encoding=UTF-8 
-server -Xms1536m -Xmx1536m
-XX:NewSize=256m -XX:MaxNewSize=256m -XX:PermSize=256m 
-XX:MaxPermSize=256m -XX:+DisableExplicitGC"

Note:XX:MaxPermSize=256m

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Answer 3

如果您使用Tomcat作为Eclipse的服务器，请转到服务器视图，然后双击Tomcat，然后“打开启动配置”，转到参数选项卡，并在设置-Dcatalina.base =“”之后将此设置为

-Xms256m -Xmx512m -XX:MaxPermSize=512m -XX:PermSize=128m

Answer 4

除了提高PermGen大小外，还可以尝试启用permgen垃圾回收

-XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled

Answer 5

Try increasing the ram allocation for your JVM. It should help.

Fix for eclipse: You can configure this in eclipse preference as follows

Windows -> Preferences ( on mac its: eclipse ->preferences) Java -> Installed JREs Select the JRE and click on Edit on the default VM arguments field type in --Xms256m -Xmx512m -XX:MaxPermSize=512m -XX:PermSize=128m. (or your memory preference,for 1 gb of ram its 1024) Click on finish or OK.