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Posted to hdfs-dev@hadoop.apache.org by "Ahmed Hussein (Jira)" <ji...@apache.org> on 2020/10/09 02:16:00 UTC

[jira] [Created] (HDFS-15618) Improve datanode shutdown latency

Ahmed Hussein created HDFS-15618:
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             Summary: Improve datanode shutdown latency
                 Key: HDFS-15618
                 URL: https://issues.apache.org/jira/browse/HDFS-15618
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: datanode
            Reporter: Ahmed Hussein
            Assignee: Ahmed Hussein


The shutdown of Datanode is a very long latency. A block scanner waits for 5 minutes to join on each VolumeScanner thread.
Since the scanners are daemon threads and do not alter the block content, it is safe to ignore such conditions on shutdown of Datanode.



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