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https://issues.apache.org/jira/browse/HDFS-15661?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang updated HDFS-15661:
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Fix Version/s: 3.3.1
> The DeadNodeDetector shouldn't be shared by different DFSClients.
> -----------------------------------------------------------------
>
> Key: HDFS-15661
> URL: https://issues.apache.org/jira/browse/HDFS-15661
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Jinglun
> Assignee: Jinglun
> Priority: Major
> Fix For: 3.3.1, 3.4.0
>
> Attachments: HDFS-15661.001.patch, HDFS-15661.002.patch,
> HDFS-15661.003.patch, HDFS-15661.004.patch, HDFS-15661.005.patch
>
>
> Currently the DeadNodeDetector is a member of ClientContext. That means it is
> shared by many different DFSClients. When one DFSClient.close() is invoked,
> the DeadNodeDetecotor thread would be interrupted and impact other DFSClients.
> From the original design of HDFS-13571 we could see the DeadNodeDetector is
> supposed to share dead nodes of many input streams from the same client.
> We should move the DeadNodeDetector as a member of DFSClient instead of
> ClientContext.
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