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https://issues.apache.org/jira/browse/HDFS-1865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13030975#comment-13030975
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Tsz Wo (Nicholas), SZE commented on HDFS-1865:
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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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