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From "Claus Ibsen (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CAMEL-5086) Archetype: camel-archetype-web retains loaded classes after redeployment, causing permgen space to fill up.
Date Tue, 20 Mar 2012 05:41:52 GMT

    [ https://issues.apache.org/jira/browse/CAMEL-5086?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13233229#comment-13233229
] 

Claus Ibsen commented on CAMEL-5086:
------------------------------------

I suggest to attach jvisualvm to the tomcat container and try to see if you can spot any leaks?
                
> Archetype: camel-archetype-web retains loaded classes after redeployment, causing permgen
space to fill up.
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: CAMEL-5086
>                 URL: https://issues.apache.org/jira/browse/CAMEL-5086
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-spring
>    Affects Versions: 2.9.1
>         Environment: Apache Tomcat 7.0.26
> jdk 1.6.0_26
> CentOS:
> Linux version 2.6.18-238.el5
>            Reporter: Dan Richelson
>            Priority: Minor
>              Labels: leak, memory, memory_leak, permgen, spring, tomcat, war, webapp
>
> Steps to reproduce:
> 1. Create a new camel web project (based on instructions here: http://camel.apache.org/camel-maven-archetypes.html
):
> mvn archetype:generate -DarchetypeGroupId=org.apache.camel.archetypes -DarchetypeArtifactId=camel-archetype-web
-DarchetypeVersion=2.9.1 -DarchetypeRepository=https://repository.apache.org/content/groups/snapshots-group
> 2. Build the new project:
> mvn clean install
> 3. Copy .war file in target/ to tomcat's webapps directory.
> 4. Reload webapp (easiest way is to touch the .war file)
> 5. If you are using a profiler, you will see that the permgen space increases on every
reload (the previous webapp's classes don't get unloaded)
> 6. Eventually the webapp container will crash with a permgen out of memory error.
> Workaround: restarting the webapp container will reset the permgen space.
> Removing the Spring nature of the project makes this go away, so it could be a problem
with Spring itself.
> This also happens when using Jetty7, so I don't think it is a problem with the container.

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