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Posted to hdfs-dev@hadoop.apache.org by "Xiao Liang (Jira)" <ji...@apache.org> on 2020/07/07 06:56:00 UTC

[jira] [Created] (HDFS-15455) Expose HighestPriorityReplBlocks and LastReplicaBlocks statistics

Xiao Liang created HDFS-15455:
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             Summary: Expose HighestPriorityReplBlocks and LastReplicaBlocks statistics
                 Key: HDFS-15455
                 URL: https://issues.apache.org/jira/browse/HDFS-15455
             Project: Hadoop HDFS
          Issue Type: Improvement
    Affects Versions: 2.9.2, 2.9.0
            Reporter: Xiao Liang
            Assignee: Xiao Liang


Similar to HDFS-13658, blocks with only 1 replica may cause the lost of customer data, so we need to make this awared and take action if necessary. This change is for HDFS 2.9 as we will still be using it for some time and switching to HDFS 3.X is not simple work.



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