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From "Patrick Hunt (JIRA)" <j...@apache.org>
Subject [jira] Updated: (ZOOKEEPER-597) ASyncHammerTest is failing intermittently on hudson trunk
Date Fri, 04 Dec 2009 18:08:20 GMT

     [ https://issues.apache.org/jira/browse/ZOOKEEPER-597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Patrick Hunt updated ZOOKEEPER-597:
-----------------------------------

    Status: Open  (was: Patch Available)

this is still happening, but in another area:

http://hudson.zones.apache.org/hudson/view/ZooKeeper/job/ZooKeeper-trunk/577/testReport/org.apache.zookeeper.test/AsyncHammerTest/testObserversHammer/

It is good to have the handler here!

2009-12-04 13:46:13,493 - ERROR [CommitProcessor:0:CommitProcessor@146] - Unexpected exception
causing CommitProcessor to exit
java.nio.channels.CancelledKeyException
    at sun.nio.ch.SelectionKeyImpl.ensureValid(SelectionKeyImpl.java:55)
    at sun.nio.ch.SelectionKeyImpl.interestOps(SelectionKeyImpl.java:64)
    at org.apache.zookeeper.server.NIOServerCnxn.sendBuffer(NIOServerCnxn.java:378)
    at org.apache.zookeeper.server.NIOServerCnxn.sendCloseSession(NIOServerCnxn.java:349)
    at org.apache.zookeeper.server.FinalRequestProcessor.processRequest(FinalRequestProcessor.java:356)
    at org.apache.zookeeper.server.quorum.Leader$ToBeAppliedRequestProcessor.processRequest(Leader.java:532)
    at org.apache.zookeeper.server.quorum.CommitProcessor.run(CommitProcessor.java:73)


> ASyncHammerTest is failing intermittently on hudson trunk
> ---------------------------------------------------------
>
>                 Key: ZOOKEEPER-597
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-597
>             Project: Zookeeper
>          Issue Type: Bug
>          Components: tests
>            Reporter: Patrick Hunt
>            Assignee: Benjamin Reed
>            Priority: Critical
>             Fix For: 3.3.0
>
>         Attachments: ZOOKEEPER-597.patch, ZOOKEEPER-597.patch, ZOOKEEPER-597.patch, ZOOKEEPER-597_2.patch,
ZOOKEEPER-597_3.patch, ZOOKEEPER-597_3.patch
>
>
> ASyncHammerTest is failing intermittently on hudson trunk. There is no clear reason why
this is happening, but
> it seems from the logs that a session connection to a follower is failing during session
establishment - the
> failure seems to be a problem either on the follower or leader. The server gets the session
create request, but
> it stalls in the request processor pipeline. (we see it go in, but we do not see it com
eout)
> unfortunately all efforts to reproduce this on non-hudson trunk have failed. Even trying
to reproduce by
> running on hudson host itself (manually) has failed.
> We need to instrument the client session creation code in the test to dump the thread
stack if the
> session creation fails.

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