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From "dragon (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-9968) CLONE - Erasure coding: distribute recovery work for striped blocks to DataNode
Date Tue, 15 Mar 2016 08:14:34 GMT
dragon created HDFS-9968:
----------------------------

             Summary: CLONE - Erasure coding: distribute recovery work for striped blocks
to DataNode
                 Key: HDFS-9968
                 URL: https://issues.apache.org/jira/browse/HDFS-9968
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: dragon
            Assignee: Zhe Zhang
             Fix For: HDFS-7285


This JIRA updates NameNode to handle background / offline recovery of erasure coded blocks.
It includes 2 parts:
# Extend {{UnderReplicatedBlocks}} to recognize EC blocks and insert them to appropriate priority
levels. 
# Update {{ReplicationMonitor}} to distinguish block codec tasks and send a new DataNode command.



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