multithreading - Exception in thread "http-8080-10" java.lang.OutOfMemoryError: Java -

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i have web application running on 64-bit windows server 2003, oracle 11g database , apache tomcat 6.0 web server.

application on live environment , around 3000 of user using application have encountered java heap out of memory error. after increasing heap space it's resolved.

now again facing same issue, below error stack trace:

exeption in thread "http-8080-10" java.lang.outofmemoryerror: java heap space aug 23, 2013 8:48:00 pm com.sessionclunter getactivesessions exeption in thread "http-8080-11" java.lang.outofmemoryerror: java heap space exeption in thread "http-8080-4" exeption in thread "http-8080-7" java.lang.outofmemoryerror: java heap space

your problem caused few things (at conceptual level):

  • you have many simultaneous users or user sessions.

  • you attempting process many user requests simultaneously.

  • you attempting process requests large (in sense).

  • you have memory leak ... related of above issue, or unrelated.

there no simple solution. (you've tried easy solution ... increasing heap size ... , hasn't worked.)

the first step in solving change jvm options take heap dump when oome occurs. use memory dump analyser examine dump, , figure out objects using memory. should give evidence allow narrow down possible causes ...


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