DistributedRaidFileSystem not removed from cache on close()
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Key: MAPREDUCE-2029
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2029
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: contrib/raid
Affects Versions: 0.22.0
Reporter: Paul Yang
When DistributedRaidFileSystem.close() is called, it does not remove itself
from the FileSystem cache, but it does close the underlying filesystem, e.g.
DFS.
Because the DRFS with the closed DFS is still in the cache, calling
FileSystem.get() returns a stale DRFS that throws 'filesystem closed'
exceptions.
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