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From "Kuhu Shukla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10342) BlockManager#createLocatedBlocks should not check corrupt replicas if none are corrupt
Date Mon, 08 Aug 2016 20:36:21 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15412417#comment-15412417
] 

Kuhu Shukla commented on HDFS-10342:
------------------------------------

TestTracing, TestRefreshUserMappings fail with or without the patch. TestDataNodeLifeline,
TestReplicationPolicy, TestLazyPersistReplicaRecovery pass locally.  Requesting [~kihwal]
for review/comments. Thanks a lot.

> BlockManager#createLocatedBlocks should not check corrupt replicas if none are corrupt
> --------------------------------------------------------------------------------------
>
>                 Key: HDFS-10342
>                 URL: https://issues.apache.org/jira/browse/HDFS-10342
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs
>    Affects Versions: 2.7.0
>            Reporter: Daryn Sharp
>            Assignee: Kuhu Shukla
>         Attachments: HDFS-10342.001.patch, HDFS-10342.002.patch, HDFS-10342.003.patch
>
>
> {{corruptReplicas#isReplicaCorrupt(block, node)}} is called for every node while populating
the machines array.  There's no need to invoke the method if {{corruptReplicas#numCorruptReplicas(block)}}
returned 0.



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