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From "Jing Zhao (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-8005) Erasure Coding: simplify striped block recovery work computation and add tests
Date Fri, 27 Mar 2015 22:24:56 GMT
Jing Zhao created HDFS-8005:
-------------------------------

             Summary: Erasure Coding: simplify striped block recovery work computation and
add tests
                 Key: HDFS-8005
                 URL: https://issues.apache.org/jira/browse/HDFS-8005
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Jing Zhao
            Assignee: Jing Zhao


HDFS-7369 adds the functionality to distribute recovery work of striped blocks to datanodes.
There are still some pending issues:
# In {{BlockManager#chooseSourceNode}}, a node is added into {{healthyIndices}} without checking
if its block is live and healthy
# The test {{TestRecoverStripedBlcoks#testMissingStripedBlock}} has not tested striped blocks
because the file is created before setting the storage policy
# In {{computeRecoveryWorkForBlocks}}, instead of using {{BlockCollection#isStriped}}, we'd
better use {{BlockInfo#isStriped}}



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