NN web UI can throw NPE after startup, before standby state is entered
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Key: HDFS-2724
URL: https://issues.apache.org/jira/browse/HDFS-2724
Project: Hadoop HDFS
Issue Type: Sub-task
Components: ha, name-node
Affects Versions: HA branch (HDFS-1623)
Reporter: Aaron T. Myers
Assignee: Eli Collins
There's a brief period of time (a few seconds) after the NN web server has been
initialized, but before the NN's HA state is initialized. If {{dfshealth.jsp}}
is hit during this time, a {{NullPointerException}} will be thrown.
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