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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2109) [hbase] TestRegionServerExit failures in patch build #1004, #1003, #991, and #971
Date Wed, 31 Oct 2007 21:10:50 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12539189

stack commented on HADOOP-2109:

And in #1040.

Looking at #1040, its the old hung flush problem first described in HADOOP-1924 (We are thread
dumping on a period now if a test goes on too long).  Here are relevant excerpt from the console
log: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1040/console:

Here is the master hung processing a shutdown:

    [junit] Thread 52 (HMaster):
    [junit]   State: RUNNABLE
    [junit]   Blocked count: 1
    [junit]   Waited count: 45
    [junit]   Stack:
    [junit]     java.net.SocketOutputStream.socketWrite0(Native Method)
    [junit]     java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
    [junit]     java.net.SocketOutputStream.write(SocketOutputStream.java:136)
    [junit]     org.apache.hadoop.ipc.Client$Connection$2.write(Client.java:192)
    [junit]     java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
    [junit]     java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
    [junit]     java.io.DataOutputStream.flush(DataOutputStream.java:106)
    [junit]     org.apache.hadoop.ipc.Client$Connection.sendParam(Client.java:327)
    [junit]     org.apache.hadoop.ipc.Client.call(Client.java:474)
    [junit]     org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:184)
    [junit]     $Proxy8.openScanner(Unknown Source)
    [junit]     org.apache.hadoop.hbase.HMaster$PendingServerShutdown.process(HMaster.java:2106)
    [junit]     org.apache.hadoop.hbase.HMaster.run(HMaster.java:1074)

We thread dump every minute.  Each time we're stuck in above location with other threads blocked

> [hbase] TestRegionServerExit failures in patch build #1004, #1003, #991, and #971
> ---------------------------------------------------------------------------------
>                 Key: HADOOP-2109
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2109
>             Project: Hadoop
>          Issue Type: Bug
>          Components: contrib/hbase
>            Reporter: stack
> Figure why the failures.

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