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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1865) Share LeaseChecker thread among DFSClients
Date Tue, 10 May 2011 00:48:03 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13030976#comment-13030976
] 

Tsz Wo (Nicholas), SZE commented on HDFS-1865:
----------------------------------------------

The failure {{TestUnderReplicatedBlocks}} was caused by timeout; see HDFS-342.  I can reproduce
the failure in my machine without the patch.

The failure {{TestFiDataTransferProtocol2}} was caused by NullPointerException in ipc.Server;
see HADOOP-7270.

The other failed tests are known.

> Share LeaseChecker thread among DFSClients
> ------------------------------------------
>
>                 Key: HDFS-1865
>                 URL: https://issues.apache.org/jira/browse/HDFS-1865
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs client
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: h1865_20110503.patch, h1865_20110504.patch, h1865_20110508.patch,
h1865_20110508b.patch, h1865_20110509.patch
>
>
> Each {{DFSClient}} runs a {{LeaseChecker}} thread within a JVM.  The number threads could
be reduced by sharing the threads.

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