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Posted to hdfs-dev@hadoop.apache.org by "Yang Yun (Jira)" <ji...@apache.org> on 2020/03/05 13:42:00 UTC

[jira] [Created] (HDFS-15207) VolumeScanner skip to scan blocks accessed during recent scan peroid

Yang Yun created HDFS-15207:
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             Summary: VolumeScanner skip to scan blocks accessed during recent scan peroid
                 Key: HDFS-15207
                 URL: https://issues.apache.org/jira/browse/HDFS-15207
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: datanode
            Reporter: Yang Yun
            Assignee: Yang Yun


Check the access time of block file to avoid scanning recently changed blocks, reducing disk IO.



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