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https://issues.apache.org/jira/browse/HDFS-12570?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16194124#comment-16194124
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Rakesh R commented on HDFS-12570:
---------------------------------
Thanks [~surendrasingh] for the reviews.
Attached latest patch fixing checkstyle, findbug, test case failure and
addressed (1) and (2) comments of Surendra.
comment-1) => Actually {{attemptedItemInfo.allBlockLocsAttemptedToSatisfy }}
attribute is not required as SPS will re-check the trackId/fileId once it
receives movementreport from DN. So, I've removed this flag.
comment-2) => Done
comment-3) => Interesting thought. In my current patch, kept blk movement
status reporting simple via heartbeat. As we know, IBR is reporting block
received and deleted items only. We need to change the semantics of
#blockReceivedAndDeleted call to incorporate the block move finished status.
Let me think for a while and get back to this point.
> [SPS]: Refactor Co-ordinator datanode logic to track the block storage
> movements
> --------------------------------------------------------------------------------
>
> Key: HDFS-12570
> URL: https://issues.apache.org/jira/browse/HDFS-12570
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode, namenode
> Reporter: Rakesh R
> Assignee: Rakesh R
> Attachments: HDFS-12570-HDFS-10285-00.patch,
> HDFS-12570-HDFS-10285-01.patch
>
>
> This task is to refactor the C-DN block storage movements. Basically, the
> idea is to move the scheduling and tracking logic to Namenode rather than at
> the special C-DN. Please refer the discussion with [~andrew.wang] to
> understand the [background and the necessity of
> refactoring|https://issues.apache.org/jira/browse/HDFS-10285?focusedCommentId=16141060&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16141060].
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