Marcelo Vanzin created SPARK-11020:
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Summary: HistoryServer fails to come up if HDFS takes too long to
come out of safe mode
Key: SPARK-11020
URL: https://issues.apache.org/jira/browse/SPARK-11020
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 1.5.1, 1.6.0
Reporter: Marcelo Vanzin
When HDFS is starting up, it starts in safe mode until the NN is able to read
the whole fs image and initialize everything. For a really large NN that can
take a while.
If the HS is started at the same time, it may give up trying to check whether
the event log directory exists, and exit. That's a little sub-optimal; the HS
could wait until HDFS came out of safe mode instead.
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