Haohui Mai created HDFS-6583:
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Summary: Remove clientNode in FileUnderConstructionFeature
Key: HDFS-6583
URL: https://issues.apache.org/jira/browse/HDFS-6583
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Haohui Mai
Attachments: HDFS-6583.000.patch
{{FileUnderConstructionFeature}} contains two fields {{clientMachine}} and
{{clientNode}}. {{clientNode}} keeps a reference of a {{DatanodeDescriptor}}.
The reference be recomputed by consulting {{DatanodeManager}}.
This jira proposes to remove {{clientNode}} in the
{{FileUnderConstructionFeature}} to simplify the code and to reduce overhead.
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