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Posted to dev@apex.apache.org by "Vlad Rozov (JIRA)" <ji...@apache.org> on 2016/03/07 16:41:40 UTC
[jira] [Updated] (APEXCORE-374) Block with positive reference count
is found during buffer server purge
[ https://issues.apache.org/jira/browse/APEXCORE-374?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vlad Rozov updated APEXCORE-374:
--------------------------------
Summary: Block with positive reference count is found during buffer server purge (was: Container killed because of exception.)
> Block with positive reference count is found during buffer server purge
> -----------------------------------------------------------------------
>
> Key: APEXCORE-374
> URL: https://issues.apache.org/jira/browse/APEXCORE-374
> Project: Apache Apex Core
> Issue Type: Bug
> Affects Versions: 3.2.0
> Reporter: Tushar Gosavi
> Assignee: Vlad Rozov
>
> Saw this issue today with high load and MxN partitions on 3.2 branch.
> Exception in thread "ProcessWideEventLoop" java.lang.IllegalStateException: Discarded block com.datatorrent.bufferserver.internal.DataList$Block@7d614fb5{identifier=2.data.2, data=67108864, readingOffset=0, writingOffset=67108864, starting_window=56d95dfa00000a79, ending_window=56d95dfa00000a83, refCount=1, uniqueIdentifier=0, next=2.data.2, future=java.util.concurrent.FutureTask@7fb83461} has positive reference count!
> at com.datatorrent.bufferserver.internal.DataList.purge(DataList.java:196)
> at com.datatorrent.bufferserver.server.Server.handlePurgeRequest(Server.java:185)
> at com.datatorrent.bufferserver.server.Server.access$200(Server.java:66)
> at com.datatorrent.bufferserver.server.Server$UnidentifiedClient.onMessage(Server.java:478)
> at com.datatorrent.netlet.AbstractLengthPrependerClient.read(AbstractLengthPrependerClient.java:149)
> at com.datatorrent.bufferserver.server.Server$SeedDataClient.transferBuffer(Server.java:832)
> at com.datatorrent.bufferserver.server.Server$AuthClient.onMessage(Server.java:361)
> at com.datatorrent.netlet.AbstractLengthPrependerClient.read(AbstractLengthPrependerClient.java:149)
> at com.datatorrent.netlet.AbstractClient.read(AbstractClient.java:128)
> at com.datatorrent.netlet.DefaultEventLoop.handleSelectedKey(DefaultEventLoop.java:322)
> at com.datatorrent.netlet.OptimizedEventLoop$SelectedSelectionKeySet.forEach(OptimizedEventLoop.java:58)
> at com.datatorrent.netlet.OptimizedEventLoop.runEventLoop(OptimizedEventLoop.java:188)
> at com.datatorrent.netlet.OptimizedEventLoop.runEventLoop(OptimizedEventLoop.java:156)
> at com.datatorrent.netlet.DefaultEventLoop.run(DefaultEventLoop.java:119)
> at java.lang.Thread.run(Thread.java:745)
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