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https://issues.apache.org/jira/browse/MAPREDUCE-6657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15250435#comment-15250435
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Daniel Templeton commented on MAPREDUCE-6657:
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I think you uploaded the wrong patch. :)
> job history server can fail on startup when NameNode is in start phase
> ----------------------------------------------------------------------
>
> Key: MAPREDUCE-6657
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6657
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobhistoryserver
> Reporter: Haibo Chen
> Assignee: Haibo Chen
> Attachments: mapreduce6657.001.patch, mapreduce6657.002.patch,
> mapreduce6677.003.patch
>
>
> Job history server will try to create a history directory in HDFS on startup.
> When NameNode is in safe mode, it will keep retrying for a configurable time
> period. However, it should also keeps retrying if the name node is in start
> state. Safe mode does not happen until the NN is out of the startup phase.
> A RetriableException with the text "NameNode still not started" is thrown
> when the NN is in its internal service startup phase. We should add the check
> for this specific exception in isBecauseSafeMode() to account for that.
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