Haibo Chen created MAPREDUCE-6657:
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Summary: 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
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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