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From "James Clampffer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12724) Add retry logic when data node block moves while reading
Date Mon, 30 Oct 2017 15:09:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16225092#comment-16225092
] 

James Clampffer commented on HDFS-12724:
----------------------------------------

Nice [~mdeepak]!  Overall the code change looks good.  Can you think of any way to get a test
in as part of the CI runs so we can get some test coverage?

> 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
>         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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