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https://issues.apache.org/jira/browse/HDFS-13033?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16336622#comment-16336622
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Uma Maheswara Rao G commented on HDFS-13033:
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+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 SPS.
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