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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12724) Add retry logic when data node block moves while reading
Date Fri, 26 Oct 2018 19:07:01 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16665562#comment-16665562
] 

Hadoop QA commented on HDFS-12724:
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|| Subsystem || Report/Notes ||
| JIRA Issue | HDFS-12724 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12894213/HDFS-12724.HDFS-8707.000.patch
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| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/25378/console |
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This message was automatically generated.



> Add retry logic when data node block moves while reading
> --------------------------------------------------------
>
>                 Key: HDFS-12724
>                 URL: https://issues.apache.org/jira/browse/HDFS-12724
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs-client
>            Reporter: Deepak Majeti
>            Assignee: Deepak Majeti
>            Priority: Major
>         Attachments: HDFS-12724.HDFS-8707.000.patch
>
>
> It is possible for a data node block to move due to re-balance.
> Libhdfs++ must try a replica block when a block re-balance happens while reading data
from that block.



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