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https://issues.apache.org/jira/browse/HDFS-9941?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16135406#comment-16135406
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Arpit Agarwal commented on HDFS-9941:
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Hi [~brahmareddy], sure go ahead. This should be straightforward to back-port.
Thanks.
> 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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