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https://issues.apache.org/jira/browse/HDFS-5211?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Nauroth resolved HDFS-5211.
---------------------------------
Resolution: Fixed
Fix Version/s: 1.3.0
1-win
Hadoop Flags: Reviewed
I have committed this to branch-1 and branch-1-win. Thanks to Xi and Nicholas
for code reviews.
> 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
> Fix For: 1-win, 1.3.0
>
> Attachments: HDFS-5211.1.patch, HDFS-5211.2.patch
>
>
> {{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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