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https://issues.apache.org/jira/browse/HDFS-8608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14630372#comment-14630372
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Zhe Zhang commented on HDFS-8608:
---------------------------------

Thanks for the comment Nicholas. Sorry my wording was a little unclear. 
Basically I meant we should try to minimize the total amount of change to merge 
to trunk (especially intrusive changes; new codes are less worrying).

git does make merging easier. But the EC feature is extra large and complex, 
and it's probably not a good idea to merge it as-is. There are 150+ commits to 
the branch, and a lot of cases of a later commit overwriting an earlier one. 
That's why I made a pass to the consolidated patch and split it into 14 sub 
patches. Hopefully it helps the broader community to review the overall EC 
change.

> Merge HDFS-7912 to trunk and branch-2 (track BlockInfo instead of Block in 
> UnderReplicatedBlocks and PendingReplicationBlocks)
> ------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-8608
>                 URL: https://issues.apache.org/jira/browse/HDFS-8608
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>    Affects Versions: 2.7.0
>            Reporter: Zhe Zhang
>            Assignee: Zhe Zhang
>             Fix For: 2.8.0
>
>         Attachments: HDFS-4366-branch-2.00.patch, 
> HDFS-4366-branch-2.01.patch, HDFS-8608.00.patch, HDFS-8608.01.patch, 
> HDFS-8608.02.patch
>
>
> This JIRA aims to merges HDFS-7912 into trunk to minimize final patch when 
> merging the HDFS-7285 (erasure coding) branch.



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