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List:       hadoop-dev
Subject:    [jira] [Created] (HADOOP-7332) Deadlock in IPC
From:       "Todd Lipcon (JIRA)" <jira () apache ! org>
Date:       2011-05-26 7:51:47
Message-ID: 2064759572.44646.1306396307438.JavaMail.tomcat () hel ! zones ! apache ! org
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Deadlock in IPC
---------------

                 Key: HADOOP-7332
                 URL: https://issues.apache.org/jira/browse/HADOOP-7332
             Project: Hadoop Common
          Issue Type: Bug
          Components: ipc
    Affects Versions: 0.22.0
            Reporter: Todd Lipcon
             Fix For: 0.22.0


Saw this during a run of TestIPC on 0.22 branch:

    [junit] Java stack information for the threads listed above:
    [junit] ===================================================
    [junit] "IPC Client (47) connection to /0:0:0:0:0:0:0:0:48853 from an unknown user":
    [junit]     at org.apache.hadoop.ipc.Client$ParallelResults.callComplete(Client.java:879)
    [junit]     - waiting to lock <0x00000000f599ef88> (a org.apache.hadoop.ipc.Client$ParallelResults)
    [junit]     at org.apache.hadoop.ipc.Client$ParallelCall.callComplete(Client.java:862)
    [junit]     at org.apache.hadoop.ipc.Client$Call.setException(Client.java:185)
    [junit]     - locked <0x00000000f59e2818> (a org.apache.hadoop.ipc.Client$ParallelCall)
    [junit]     at org.apache.hadoop.ipc.Client$Connection.cleanupCalls(Client.java:843)
    [junit]     at org.apache.hadoop.ipc.Client$Connection.close(Client.java:832)
    [junit]     - locked <0x00000000f59d8a90> (a org.apache.hadoop.ipc.Client$Connection)
    [junit]     at org.apache.hadoop.ipc.Client$Connection.run(Client.java:708)
    [junit] "Thread-242":
    [junit]     at org.apache.hadoop.ipc.Client$Connection.markClosed(Client.java:788)
    [junit]     - waiting to lock <0x00000000f59d8a90> (a org.apache.hadoop.ipc.Client$Connection)
    [junit]     at org.apache.hadoop.ipc.Client$Connection.sendParam(Client.java:742)
    [junit]     at org.apache.hadoop.ipc.Client.call(Client.java:1109)
    [junit]     - locked <0x00000000f599ef88> (a org.apache.hadoop.ipc.Client$ParallelResults)
    [junit]     at org.apache.hadoop.ipc.TestIPC$ParallelCaller.run(TestIPC.java:135)


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