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https://issues.apache.org/jira/browse/STRATOS-1048?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lasindu Charith reassigned STRATOS-1048:
----------------------------------------
Assignee: Lasindu Charith
> CEP OOM error when used in Single JVM mode for several days
> -----------------------------------------------------------
>
> Key: STRATOS-1048
> URL: https://issues.apache.org/jira/browse/STRATOS-1048
> Project: Stratos
> Issue Type: Bug
> Affects Versions: 4.0.0, 4.1.0, FUTURE
> Reporter: Lasindu Charith
> Assignee: Lasindu Charith
> Fix For: 4.1.0 RC3
>
> Attachments: CEP_OOM.patch
>
>
> When Stratos is running for few days in single JVM mode, it throws a 'GC
> overhead limit exceeded' error due to a large number of ScheduledFutureTask
> objects collected in heap over time.
> TID: [0] [STRATOS] [2014-09-07 03:43:48,708] ERROR
> {org.apache.stratos.cep.extension.SecondDerivativeFinderWindowProcessor} - GC
> overhead limit exceeded
> {org.apache.stratos.cep.extension.SecondDerivativeFinderWindowProcessor}
> java.lang.OutOfMemoryError: GC overhead limit exceeded
> at java.util.concurrent.Executors.callable(Executors.java:369)
> at java.util.concurrent.FutureTask.<init>(FutureTask.java:152)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.<init>(ScheduledThreadPoolExecutor.java:207)
>
> at
> java.util.concurrent.ScheduledThreadPoolExecutor.schedule(ScheduledThreadPoolExecutor.java:527)
>
> at
> org.apache.stratos.cep.extension.SecondDerivativeFinderWindowProcessor.run(SecondDerivativeFinderWindowProcessor.java:156)
>
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
>
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
>
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>
> at java.lang.Thread.run(Thread.java:745)
> Attached patch for CEP window processors provides a fix for 4.0.0.
> siddhi-core 2.0.0-wso2v4 should have a similar fix for TimeWindowProcessor &
> TimeBatchWindowProcessor as well.
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