HA NN should be able to handle some cases of storage dir recovery on start
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Key: HDFS-3103
URL: https://issues.apache.org/jira/browse/HDFS-3103
Project: Hadoop HDFS
Issue Type: Improvement
Components: ha, name-node
Affects Versions: 0.24.0, 0.23.3
Reporter: Todd Lipcon
As a shortcut in developing HA, we elected not to deal with the case of storage
directory recovery while HA is enabled. But there are many cases where we can
and should handle it. For example, if the user configures two local dirs and
one shared dir, but one of the local dirs is empty at startup, we should be
able to re-format the empty dir from the other local dir.
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