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From Luciano Andress Martini <777u...@gmail.com>
Subject Re: Java.lang.out.of.memory not clearly....
Date Fri, 27 Jan 2012 17:54:49 GMT
-Xmx512m -Xmx1024 ?


2012/1/27, Luciano Andress Martini <777user@gmail.com>:
> its 64 bits? How can i increase the object heap?
>
>
>
> 2012/1/27, Pid <pid@pidster.com>:
>> On 27/01/2012 16:29, Luciano Andress Martini wrote:
>>> I need to know if the error is from my part (server administrator),
>>> from the developer or from the hardware/vms. Some times that occurs
>>> when processing two milion of registry (i am talking from expressocard
>>> a company of credit cards).
>>>
>>> Its a rarely error because this processing occurs rarely.
>>>
>>> in fact, mysql in the another server with 12 processors, still
>>> running, and tomcat in a virtual machine called adm (in another
>>> physical machine, with 4 processors) still running.
>>>
>>> So, this errors occurs like that:
>>>
>>> 1- Tomcat started
>>> 2- This processing is realized ok in the first time
>>> 3- Tomcat stable in the users acess.
>>> 4- The processing is realized again, some days later, inn 98% of
>>> processing servers crashes, but mysql is still running.
>>> 5- Restar of tomcat service tomcat6 restart
>>> 6- the processing started again, and server can done the processing.
>>>
>>> In the moment of the crash:
>>> jstat -class
>>> Loaded  Bytes  Unloaded  Bytes     Time
>>>
>>>  15007 32265.0      300   505.9      12.11
>>
>> So permgen is using 32Mb
>>
>>> Java using: 914mb
>>> Free memory on the virtual machine server: 2152
>>>
>>> Java says:
>>> java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError:
>>> Java heap space at
>>> java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:232) at
>>> java.util.concurrent.FutureTask.get(FutureTask.java:91) at
>>> wfr.rules.WFRRule.execute(WFRRule.java:1820) at
>>> wfr.rules.WFRRule.execute(WFRRule.java:1792) at
>>> wfr.web.actions.ExecuteRuleAction.execute(ExecuteRuleAction.java:198)
>>> at wfr.web.Action.doAction(Action.java:126) at
>>> wfr.web.Controller.process(Controller.java:100) at
>>> wfr.web.Controller.doPost(Controller.java:67) at
>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:637) at
>>> javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at
>>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
>>> at
>>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>>> at wfr.web.ContextFilter.doFilter(ContextFilter.java:78) at
>>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>>> at
>>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>>> at
>>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
>>> at
>>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
>>> at
>>> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:470)
>>> at
>>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
>>> at
>>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
>>> at
>>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
>>> at
>>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
>>> at
>>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
>>> at
>>> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
>>> at
>>> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
>>> at java.lang.Thread.run(Thread.java:662) Caused by:
>>> java.lang.OutOfMemoryError: Java heap space
>>>
>>> Java options (that i configurate)
>>> -Djava.awt.headless=true
>>> -Xmx512m
>>> -XX:MaxPermSize=3512M
>>
>> Cripes!  3.5Gb of PermGen space?!  I really doubt you want that.
>>
>> So your JVM is using 900Mb, your object heap is 512Mb.
>>
>> If you have more memory available, why not assign more to the heap?
>> How much memory is available?
>>
>> Are you using 32bit or 64bit?
>>
>>
>> p
>>
>>> -XX:+CMSIncrementalMode
>>> -XX:+UseConcMarkSweepGC
>>> -XX:+CMSClassUnloadingEnabled
>>> -XX:ParallelGCThreads=4
>>> -XX:+UseParNewGC
>>>
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>>>
>>
>>
>> --
>>
>> [key:62590808]
>>
>>
>

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