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From "Xiao Chen (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HDFS-11188) Change min supported DN and NN versions back to 2.x
Date Fri, 16 Dec 2016 00:51:58 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15753016#comment-15753016

Xiao Chen edited comment on HDFS-11188 at 12/16/16 12:51 AM:

No more tests needed since we already have coverage. I'm assuming (jenkins results are gone)
checkstyle is 80-char so okay too.
Committed to trunk, thanks Andrew!

was (Author: xiaochen):
Committed, thanks Andrew!

> Change min supported DN and NN versions back to 2.x
> ---------------------------------------------------
>                 Key: HDFS-11188
>                 URL: https://issues.apache.org/jira/browse/HDFS-11188
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: rolling upgrades
>    Affects Versions: 3.0.0-alpha1
>            Reporter: Andrew Wang
>            Assignee: Andrew Wang
>            Priority: Critical
>             Fix For: 3.0.0-alpha2
>         Attachments: HDFS-11188.001.patch
> This is the inverse of HDFS-10398 and HADOOP-13142. Currently, trunk requires a software
DN and NN version of 3.0.0-alpha1. This means we cannot perform a rolling upgrade from 2.x
to 3.x.
> The first step towards supporting rolling upgrade is changing these back to a 2.x version.
For reference, branch-2 has these versions set to "2.1.0-beta".

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