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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-5211) Race condition between DistributedFileSystem#close and FileSystem#close can cause return of a closed DistributedFileSystem instance from the FileSystem cache.
Date Sun, 15 Sep 2013 16:08:51 GMT
Chris Nauroth created HDFS-5211:
-----------------------------------

             Summary: Race condition between DistributedFileSystem#close and FileSystem#close
can cause return of a closed DistributedFileSystem instance from the FileSystem cache.
                 Key: HDFS-5211
                 URL: https://issues.apache.org/jira/browse/HDFS-5211
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: hdfs-client
    Affects Versions: 1.2.1
            Reporter: Chris Nauroth


{{DistributedFileSystem#close}} closes the underlying {{DFSClient}} before the superclass
call to {{FileSystem#close}}, which removes the instance from the cache.  This leaves a small
window during which another thread can call {{FileSystem#get}} and receive the closed instance
from the cache.

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