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https://issues.apache.org/jira/browse/HDFS-14785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16938869#comment-16938869
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Konstantin Shvachko commented on HDFS-14785:
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+1. Looks good.
> [SBN read] Change client logging to be less aggressive
> ------------------------------------------------------
>
> Key: HDFS-14785
> URL: https://issues.apache.org/jira/browse/HDFS-14785
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs
> Affects Versions: 2.10.0, 3.2.0, 3.1.2, 3.3.0
> Reporter: Chen Liang
> Assignee: Chen Liang
> Priority: Major
> Labels: release-blocker
> Attachments: HDFS-14785.001.patch
>
>
> Currently {{ObserverReadProxyProvider}} logs a lot of information. There are
> states that are acceptable but {{ObserverReadProxyProvider}} still log an
> overwhelmingly large amount of messages. One example is that, if some NN runs
> an older version, the lack of {{getHAServiceState}} method in older version
> NN will lead to a Exception prints on every single call.
> We can change them to debug log. This should be minimum risk, because this is
> only client side, we can always enable the log back by changing to DEBUG log
> level on client side.
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