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From "Chen Liang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-14205) Backport HDFS-6440 to branch-2
Date Mon, 18 Mar 2019 21:25:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-14205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16795407#comment-16795407
] 

Chen Liang commented on HDFS-14205:
-----------------------------------

[~csun] v009 patch looks pretty good to me. Thanks for the effort! I wonder though, about
#2 change, is this change necessary? it seems this is change is from HDFS-13676 in trunk,
why do we need to include this change here? Similarly, #4 seems from HDFS-9533 in trunk. Also,
original patch broke several things as mentioned in HDFS-6440 JIRA, do we plan to address
separately?

> Backport HDFS-6440 to branch-2
> ------------------------------
>
>                 Key: HDFS-14205
>                 URL: https://issues.apache.org/jira/browse/HDFS-14205
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Chen Liang
>            Assignee: Chao Sun
>            Priority: Major
>         Attachments: HDFS-14205-branch-2.001.patch, HDFS-14205-branch-2.002.patch, HDFS-14205-branch-2.003.patch,
HDFS-14205-branch-2.004.patch, HDFS-14205-branch-2.005.patch, HDFS-14205-branch-2.006.patch,
HDFS-14205-branch-2.007.patch, HDFS-14205-branch-2.008.patch, HDFS-14205-branch-2.009.patch
>
>
> Currently support for more than 2 NameNodes (HDFS-6440) is only in branch-3. This JIRA
aims to backport it to branch-2, as this is required by HDFS-12943 (consistent read from standby)
backport to branch-2.



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