[jira] [Created] (HDFS-7892) a block placement policy with best fault tolerance

[Walter Su (JIRA)]

Walter Su created HDFS-7892:
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             Summary: a block placement policy with best fault tolerance
                 Key: HDFS-7892
                 URL: https://issues.apache.org/jira/browse/HDFS-7892
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Walter Su


a block placement policy tries its best to place replicas to most racks.



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