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Posted to hdfs-issues@hadoop.apache.org by "Yang Yun (Jira)" <ji...@apache.org> on 2020/05/27 02:57:00 UTC

[jira] [Created] (HDFS-15377) BlockScanner scans one part per round, expect full scans after several rounds

Yang Yun created HDFS-15377:
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             Summary: BlockScanner scans one part per round, expect full scans after several rounds
                 Key: HDFS-15377
                 URL: https://issues.apache.org/jira/browse/HDFS-15377
             Project: Hadoop HDFS
          Issue Type: Improvement
            Reporter: Yang Yun
            Assignee: Yang Yun


For reducing disk IO, one block is separated to multiple parts, BlockScanner scans only one part per round. Expect that after several rounds, the full block should be scanned. 



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