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Working as Technical Lead in CollabNET software private limited.

Wednesday, 17 October 2012

Memory leak when reading EJB 2.1 CMP EntityBeans in JBOSS7.1.1-Final

On a recent PSR testing, we saw frequent OOME on accessing the site. Later, on investigation heap dump,we found that there are large number of objects getting created for org.jboss.invocation.interceptor[] from WeavedInterceptor and ChainedInterceptor.

Below is the screen shot of it..


Later on investigation, we found its because of the bug in JBOSS7.1.1-Final, this is due migrating EJB2.1 CMP EntityBeans to this JBOSS7.1.1-Final version.


More details on actual stack trace can be found in https://community.jboss.org/thread/198920 


We need to patch JDBCStoreManager.java for this in the jboss AS 7.1.1.

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