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From "Tsuyoshi OZAWA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1281) TestZKRMStateStoreZKClientConnections fails intermittently
Date Tue, 15 Apr 2014 06:28:16 GMT

    [ https://issues.apache.org/jira/browse/YARN-1281?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13969261#comment-13969261
] 

Tsuyoshi OZAWA commented on YARN-1281:
--------------------------------------

Reproduced bug.

{quote}
-------------------------------------------------------------------------------
Test set: org.apache.hadoop.yarn.server.resourcemanager.recovery.TestZKRMStateStoreZKClientConnections
-------------------------------------------------------------------------------
Tests run: 6, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 3.73 sec <<< FAILURE!
- in org.apache.hadoop.yarn.server.resourcemanager.recovery.TestZKRMStateStoreZKClientConnections
testZKClientDisconnectAndReconnect(org.apache.hadoop.yarn.server.resourcemanager.recovery.TestZKRMStateStoreZKClientConnections)
 Time elapsed: 0.174 sec  <<< FAILURE!
java.lang.AssertionError: Unable to connect to server
        at org.junit.Assert.fail(Assert.java:93)
        at org.apache.hadoop.ha.ClientBaseWithFixes.createClient(ClientBaseWithFixes.java:180)
        at org.apache.hadoop.yarn.server.resourcemanager.recovery.TestZKRMStateStoreZKClientConnections.access$100(TestZKRMStateStoreZKClientConnections.java:47)
{quote}

{quote}
2014-04-15 04:11:27,000 INFO  [SessionTracker] server.SessionTrackerImpl (SessionTrackerImpl.java:run(162))
- SessionTrackerImpl exited loop!
2014-04-15 04:11:27,660 INFO  [Thread-2-SendThread(localhost:11221)] zookeeper.ClientCnxn
(ClientCnxn.java:logStartConnect(966)) - Opening socket connection to server localhost/127.0.0.1:11221.
Will not attempt to authenticate using SASL (unknown error)
2014-04-15 04:11:27,661 WARN  [Thread-2-SendThread(localhost:11221)] zookeeper.ClientCnxn
(ClientCnxn.java:run(1089)) - Session 0x145639514f70000 for server null, unexpected error,
closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
        at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
        at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
        at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
        at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
{quote}

I'll take a look deeper.

> TestZKRMStateStoreZKClientConnections fails intermittently
> ----------------------------------------------------------
>
>                 Key: YARN-1281
>                 URL: https://issues.apache.org/jira/browse/YARN-1281
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>            Reporter: Karthik Kambatla
>
> The test fails intermittently - haven't been able to reproduce the failure deterministically.




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