PermGen Space error when deploying tomcat 7? [duplicate]

Question

I installed tomcat 7 to upgraded my JIRA projeect version from 5.0 to 6. After I place the project folder in tomcat's webapps. I run this localhost:8080/jira after long time running, it throws some error message. Please help us to fix this problem thanks in advance

java.lang.RuntimeException: PermGen space
    at com.atlassian.event.internal.SingleParameterMethodListenerInvoker.invoke(SingleParameterMethodListenerInvoker.java:54)
    at com.atlassian.event.internal.AsynchronousAbleEventDispatcher$2.run(AsynchronousAbleEventDispatcher.java:66)
    at com.atlassian.event.internal.AsynchronousAbleEventDispatcher$1.execute(AsynchronousAbleEventDispatcher.java:32)
    at com.atlassian.event.internal.AsynchronousAbleEventDispatcher.dispatch(AsynchronousAbleEventDispatcher.java:60)
    at com.atlassian.event.internal.EventPublisherImpl.invokeListeners(EventPublisherImpl.java:160)
    at com.atlassian.event.internal.EventPublisherImpl.publish(EventPublisherImpl.java:79)
    at com.atlassian.plugin.event.impl.DefaultPluginEventManager.broadcast(DefaultPluginEventManager.java:84)
    at com.atlassian.plugin.manager.DefaultPluginManager.addPlugins(DefaultPluginManager.java:768)
    at com.atlassian.plugin.manager.DefaultPluginManager.init(DefaultPluginManager.java:200)
    at com.atlassian.jira.plugin.JiraPluginManager.start(JiraPluginManager.java:63)
    at com.atlassian.jira.ComponentManager$PluginSystem.start(ComponentManager.java:635)
    at com.atlassian.jira.ComponentManager.startJIRA(ComponentManager.java:214)
    at com.atlassian.jira.ComponentManager.quickStart(ComponentManager.java:208)
    at com.atlassian.jira.ComponentManager.start(ComponentManager.java:193)
    at com.atlassian.jira.upgrade.PluginSystemLauncher.start(PluginSystemLauncher.java:23)
    at com.atlassian.jira.startup.DefaultJiraLauncher$3.run(DefaultJiraLauncher.java:107)
    at com.atlassian.jira.config.database.DatabaseConfigurationManagerImpl.doNowOrEnqueue(DatabaseConfigurationManagerImpl.java:323)
    at com.atlassian.jira.config.database.DatabaseConfigurationManagerImpl.doNowOrWhenDatabaseActivated(DatabaseConfigurationManagerImpl.java:211)
    at com.atlassian.jira.startup.DefaultJiraLauncher.postDbLaunch(DefaultJiraLauncher.java:100)
    at com.atlassian.jira.startup.DefaultJiraLauncher.access$100(DefaultJiraLauncher.java:27)
    at com.atlassian.jira.startup.DefaultJiraLauncher$1.run(DefaultJiraLauncher.java:66)
    at com.atlassian.jira.util.devspeed.JiraDevSpeedTimer.run(JiraDevSpeedTimer.java:33)
    at com.atlassian.jira.startup.DefaultJiraLauncher.start(DefaultJiraLauncher.java:61)
    at com.atlassian.jira.startup.LauncherContextListener.contextInitialized(LauncherContextListener.java:54)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4797)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5291)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:657)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1637)
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.OutOfMemoryError: PermGen space

Answer 1

More helpful solution is to increase values in JAVA_OPTS variable.
Add next line to your Catalina.bat/Catalina.sh file in bin directory

For Windows (Catalina.bat)

set JAVA_OPTS="-Xms1024m -Xmx10246m -XX:NewSize=256m -XX:MaxNewSize=356m -XX:PermSize=256m -XX:MaxPermSize=356m"  

For Unix (Catalina.sh)

export JAVA_OPTS="-Xms1024m -Xmx1024m -XX:NewSize=256m -XX:MaxNewSize=356m -XX:PermSize=256m -XX:MaxPermSize=356m"  

More solutions you can find in this article

Answer 2

Sometimes after re-deployments the Garbage Collector can't destroy some objects on Tomcat and run out of space. There are many reasons for these case:

• If you use some CRUD-Objects - check if there are all closed after using.
• If your app used other libs - sometimes the Objects from these libs cant also be destroyed, like MysqlConnector, Hibernate/C3p0 or other - try to put these libs on the tomcat/lib folder
  

Check the Tomcat with the "Java VisualVM" and check the permGen after re-deployment.
The default value for the permGen Space are often also very low you can increase them with the following javaVM parameter

 -XX:PermSize=64M -XX:MaxPermSize=256m

You can follow these tutorial

http://www.mkyong.com/tomcat/tomcat-javalangoutofmemoryerror-permgen-space/

UPDATE

other solution maybe found here : what to do with tomcat PermGen space

add -XX:+CMSClassUnloadingEnabled -XX:+UseConcMarkSweepGC to the javaVM options