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https://issues.apache.org/jira/browse/HDFS-3918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13624193#comment-13624193
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Todd Lipcon commented on HDFS-3918:
-----------------------------------
Hmm, not sure exactly what kind of test you mean. I'm generally assuming that
the exception response's first line is some kind of readable error message,
which shouldn't change in the future.
> EditLogTailer shouldn't log WARN when other node is in standby mode
> -------------------------------------------------------------------
>
> Key: HDFS-3918
> URL: https://issues.apache.org/jira/browse/HDFS-3918
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Attachments: hdfs-3918.txt
>
>
> If both nodes are in standby mode, each will be trying to roll the others'
> logs, which results in errors like:
> Unable to trigger a roll of the active NN
> org.apache.hadoop.ipc.StandbyException: Operation category JOURNAL is not
> supported in state standby
> We should catch this specific exception and not log it at WARN level, since
> it's expected behavior.
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