Jinglun created HDFS-15661:
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Summary: 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
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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