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https://issues.apache.org/jira/browse/HDFS-13033?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16334379#comment-16334379
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Rakesh R commented on HDFS-13033:
---------------------------------
Thanks [~umamaheswararao] for the reviews.
Attached new patch. Here, I've moved commonly used classes for the external and
internal to "org.apache.hadoop.hdfs.server.common.sps" package, does this make
sense. Also, I've created {{TestExternalStoragePolicySatisfier}} test class to
run unit testing. I will rebase my patch once this test class will get
committed via HDFS-13025.
> [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-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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