[jboss-user] [JBoss Web Services] - JBOSS WS | OutOfMemory GC overhead limit exceeded

[Keshav Savant]

Keshav Savant [https://community.jboss.org/people/kcsavant] created the discussion

"JBOSS WS | OutOfMemory GC overhead limit exceeded"

To view the discussion, visit: https://community.jboss.org/message/726901#726901

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Hi All,

We have a web service deployed on JBoss 5.1.0 GA with JBoss Native 3.2.2.GA . (Got to know that Native WS is EOL now, will work on migration later). We used bottom-up approach and we are sending a complex java object that contains Strings, Long, Boolean and byte[] to web service.

We are calling web service for almost 60 to 90 times per minute. We are getting OOM GC overhead limit exceeded often (every 2 to 3 weeks), we got the heapdump (we have a heap of 1.5G) for that, on analysing the heapdump we see a lot of objects of ConcurrentHashMap for almost 1G. Most of these ConcurrentHashMaps<String, Object> are containing key as pointing to some XSD that is in-turn pointing to the web service class we have, for example the key is *+java.lang.String "JBossWS_webservice.my_package.my_company.com_8892700084997890448.xsd",+* here our web service implementation class is in +*com.my_company.my_package.webservice*+ package. All the ConcurrentHashMap shows same kind of stuff. 

Can anybody please advise why there are so much of ConsurrentHashMap object in heap ?

Thanks,
Keshav
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