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From "Uma Maheswara Rao G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-13033) [SPS]: Implement a mechanism to do file block movements for external SPS
Date Wed, 24 Jan 2018 00:24:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-13033?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16336622#comment-16336622

Uma Maheswara Rao G commented on HDFS-13033:

+1 on the latest patch.

Test failures unrelated and checkstyle comment is wrongly reporting about else if and indentation.
Other minor checkstyle issue about formatting was corrected while committing.

Committed to branch.

> [SPS]: Implement a mechanism to do file block movements for external SPS
> ------------------------------------------------------------------------
>                 Key: HDFS-13033
>                 URL: https://issues.apache.org/jira/browse/HDFS-13033
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Rakesh R
>            Assignee: Rakesh R
>            Priority: Major
>             Fix For: HDFS-10285
>         Attachments: HDFS-13033-HDFS-10285-00.patch, HDFS-13033-HDFS-10285-01.patch,
HDFS-13033-HDFS-10285-02.patch, HDFS-13033-HDFS-10285-03.patch, HDFS-13033-HDFS-10285-04.patch
> HDFS-12911 modularization is introducing \{{BlockMoveTaskHandler}} interface for moving the
file blocks. That will help us to plugin different ways of block move mechanisms, if needed.
> For Internal SPS, we have simple blk movement tasks to target DN descriptors. For
external SPS, we should have mechanism to send \{{replaceBlock}} on target node and have a
listener to track the block movement completion. 
> This is the task to implement the \{{ExternalSPSBlockMoveTaskHandler}} plugin for external

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