<![CDATA[Latest posts for the topic "Tomcat 7 EhCache Terracotta JXM WebappClassLoader Leak"]]> http://forums.terracotta.org/forums/posts/list/5.page JForum - http://www.jforum.net Tomcat 7 EhCache Terracotta JXM WebappClassLoader Leak Problem Description Reloading a Tomcat Web Application using ehCache with a Terracotta Network Cache causes a WebappClassLoader memory leak Env OS: Mac (dev) Linux Debian (test) Tomcat: apache-tomcat-7.0.26 Terracotta: terracotta-3.6.1 Webframework: Spring 3.1.1 Java: java version "1.6.0_29" Java(TM) SE Runtime Environment (build 1.6.0_29-b11-402-11D50) Java HotSpot(TM) 64-Bit Server VM (build 20.4-b02-402, mixed mode) ehcache.xml Code:
<ehcache name="FCAppsCache" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xsi:noNamespaceSchemaLocation="ehcache.xsd" updateCheck="true" monitoring="autodetect" dynamicConfig="true">
 <terracottaConfig url="localhost:9510" />
 <cache name="ObjectCache" maxElementsInMemory="10000" eternal="true" overflowToDisk="false">
  <terracotta />
 </cache>
 <cache name="ObjectCache.id" maxElementsInMemory="10000" eternal="true" overflowToDisk="false">
  <terracotta />
 </cache>
</ehcache>
Reproducible: Always I can also provide the Heap Dump upon request. The below links link to screen shots (tried attaching them here, however the img with="" tag was not working) http://www.finalconcept.com.au/images/tmp-terracotta-bug-report/TomcatManagerShowingOneInstanceOfDevHouseAppWith3LeakingInstances.png This image shows the Tomcat manager interface after reloading the dev-house application 3 times, then clicking the "Find Leaks" button http://www.finalconcept.com.au/images/tmp-terracotta-bug-report/EclipseMatShowing3-2MBWebappClassLoaderLeaks.png This image shows the 4 WebappClassLoaders with 3 of them all being dead and taking up 2MB of memory (I suspect is is more than this with all the references) http://www.finalconcept.com.au/images/tmp-terracotta-bug-report/EclipseMatAboutToGetGCRoot.png Showing how i came to the conclusion that it was a JMX instance by selecting all hard references http://www.finalconcept.com.au/images/tmp-terracotta-bug-report/EclipseMatShowing3-WebappClassLoadersWithStartedFalse.png Showing three WebappClassLoader's with started = false http://www.finalconcept.com.au/images/tmp-terracotta-bug-report/EclipseMatShowing4BaseNotificationBroadcasterEntry.png Showing the 4 BaseNotificationBroardcastEntry when I think there should only be one ]]> http://forums.terracotta.org/forums/posts/list/6801.page#34190 http://forums.terracotta.org/forums/posts/list/6801.page#34190 GMT Re:Tomcat 7 EhCache Terracotta JXM WebappClassLoader Leak http://forums.terracotta.org/forums/posts/list/6801.page#34781 http://forums.terracotta.org/forums/posts/list/6801.page#34781 GMT