Haohui Mai created HDFS-8984:
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Summary: Move replication queues related methods in FSNamesystem
to BlockManager
Key: HDFS-8984
URL: https://issues.apache.org/jira/browse/HDFS-8984
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Haohui Mai
Assignee: Haohui Mai
Currently {{FSNamesystem}} controls whether replication queue should be
populated based on whether the NN is in safe mode or whether it is an active NN.
Replication is a concept on the block management layer. It is more natural to
place the functionality in the {{BlockManager}} class.
This jira proposes to move the these methods to the {{BlockManager}}.
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