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From "Brahma Reddy Battula (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9941) Do not log StandbyException on NN, other minor logging fixes
Date Mon, 21 Aug 2017 11:02:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9941?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16135033#comment-16135033
] 

Brahma Reddy Battula commented on HDFS-9941:
--------------------------------------------

[~arpitagarwal] nice work!!
 can we backport this to {{branch-2.7}}..? Found during backport of HDFS-11817, this is required
by HDFS-11817.

> Do not log StandbyException on NN, other minor logging fixes
> ------------------------------------------------------------
>
>                 Key: HDFS-9941
>                 URL: https://issues.apache.org/jira/browse/HDFS-9941
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>    Affects Versions: 2.8.0
>            Reporter: Arpit Agarwal
>            Assignee: Arpit Agarwal
>             Fix For: 2.8.0, 3.0.0-alpha1
>
>         Attachments: HDFS-9941.01.patch, HDFS-9941.02.patch, HDFS-9941.03.patch, HDFS-9941-branch-2.03.patch
>
>
> The NameNode can skip logging StandbyException messages. These are seen regularly in
normal operation and convey no useful information.
> We no longer log the locations of newly allocated blocks in 2.8.0. The DN IDs can be
useful for debugging so let's add that back.



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