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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HDFS-5211) Race condition between DistributedFileSystem#close and FileSystem#close can cause return of a closed DistributedFileSystem instance from the FileSystem cache.
Date Mon, 16 Sep 2013 05:38:51 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5211?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Nauroth reassigned HDFS-5211:
-----------------------------------

    Assignee: Chris Nauroth
    
> 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
>            Assignee: 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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