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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8226) Non-HA rollback compatibility broken
Date Fri, 08 May 2015 17:21:21 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14535000#comment-14535000
] 

Hudson commented on HDFS-8226:
------------------------------

SUCCESS: Integrated in Hadoop-Mapreduce-trunk-Java8 #189 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/189/])
HDFS-8226. Non-HA rollback compatibility broken (Contributed by J.Andreina) (vinayakumarb:
rev e01c1a979cbc8fb398d5b7a46693657bc2668a58)
* hadoop-hdfs-project/hadoop-hdfs/src/main/bin/start-dfs.sh
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HdfsUserGuide.md


> Non-HA rollback compatibility broken
> ------------------------------------
>
>                 Key: HDFS-8226
>                 URL: https://issues.apache.org/jira/browse/HDFS-8226
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.4.0
>            Reporter: J.Andreina
>            Assignee: J.Andreina
>            Priority: Blocker
>             Fix For: 2.7.1
>
>         Attachments: HDFS-8226.1.patch, HDFS-8226.2.patch
>
>
> In HA  while performing rollback , we use “hdfs namenode –rollback” which would
prompt user for confirmation.  ( Implemented as part of HDFS-5138)
> For Non-HA , as per doc if we perform rollback using “start-dfs.sh –rollback” ,
then namenode startup hangs ( As it tries to start namenode in daemon mode , hence will not
be able to prompt user for confirmation )



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