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From "dragon (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-10130) CLONE - Erasure Coding: handle missing internal block locations in DFSStripedInputStream
Date Tue, 15 Mar 2016 08:17:35 GMT
dragon created HDFS-10130:
-----------------------------

             Summary: CLONE - Erasure Coding: handle missing internal block locations in DFSStripedInputStream
                 Key: HDFS-10130
                 URL: https://issues.apache.org/jira/browse/HDFS-10130
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: dragon
            Assignee: Jing Zhao
             Fix For: HDFS-7285


Currently DFSStripedInputStream assumes we always have complete internal block location information,
i.e., we can always get all the DataNodes for a striped block group. In a lot of scenarios
the client cannot get complete block location info, e.g., some internal blocks are missing
and the NameNode has not finished the recovery yet. We should add functionality to handle
missing block locations in DFSStripedInputStream.



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