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https://issues.apache.org/jira/browse/HADOOP-10792?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andras Bokor resolved HADOOP-10792.
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Resolution: Won't Fix
> Add FileSystem#closeIfNotReferred method
> ----------------------------------------
>
> Key: HADOOP-10792
> URL: https://issues.apache.org/jira/browse/HADOOP-10792
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Reporter: Kousuke Saruta
>
> FileSystem#close closes FileSystem even if the same instance of FileSystem is
> referred by someone.
> For instance, a library using FileSystem calls FileSystem.get, and a program
> using the library calls FileSystem.get, both of instances of FileSystem is
> same.
> When the library and the program is implemented as different threads and one
> calls FileSystem.close, another fails most of operations of FileSystem.
> So, we need the method like cloesIfNotReferred, which closes FileSystem only
> if a instance of FileSystem is not referred by anyone.
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