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From "Tsz Wo Nicholas Sze (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8728) Erasure coding: revisit and simplify BlockInfoStriped and INodeFile
Date Fri, 17 Jul 2015 18:52:04 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14631736#comment-14631736

Tsz Wo Nicholas Sze commented on HDFS-8728:

> ..., after cherrypicking HDFS-8499 without changing BIStriped, the branch won't compile
and it will be hard to verify the conflict-resolving changes. ...

Suppose the conflicts of HDFS-8499 is super hard to fix.  (If it is the case, it sounds like
that HDFS-8499 was a mistake.  How about reverting it and redoing it?)  We may create another
(temporary) branch from the ec branch for merging HDFS-8499.  In the temporary branch, we
may first merge HDFS-8499 as-is and then post one or more patches for fixing the problems.
 Finally, we merge the temporary branch back to the ec branch.  The reason of creating a temporary
branch is to minimize the downtime of the ec branch since you mentioned that merging HDFS-8499
breaks compilation.

> Erasure coding: revisit and simplify BlockInfoStriped and INodeFile
> -------------------------------------------------------------------
>                 Key: HDFS-8728
>                 URL: https://issues.apache.org/jira/browse/HDFS-8728
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Zhe Zhang
>            Assignee: Zhe Zhang
>         Attachments: HDFS-8728-HDFS-7285.00.patch, HDFS-8728-HDFS-7285.01.patch, HDFS-8728-HDFS-7285.02.patch,
HDFS-8728-HDFS-7285.03.patch, HDFS-8728.00.patch, HDFS-8728.01.patch, HDFS-8728.02.patch,
Merge-1-codec.patch, Merge-2-ecZones.patch, Merge-3-blockInfo.patch, Merge-4-blockmanagement.patch,
Merge-5-blockPlacementPolicies.patch, Merge-6-locatedStripedBlock.patch, Merge-7-replicationMonitor.patch,

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