[jira] [Created] (HDFS-8952) InputStream.PositionRead() should be aware of available DNs

[Haohui Mai (JIRA)]

Haohui Mai created HDFS-8952:
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             Summary: InputStream.PositionRead() should be aware of available 
DNs
                 Key: HDFS-8952
                 URL: https://issues.apache.org/jira/browse/HDFS-8952
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Haohui Mai
            Assignee: Haohui Mai


This jira provides basic functionality to allow libraries to recover from DN 
failures.

{{InputStream.PositionRead()}} should (1) report the DN that when it serves 
reads, and (2) allows the users exclude dead nodes during reads.



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