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https://issues.apache.org/jira/browse/HADOOP-3159?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz Wo (Nicholas), SZE updated HADOOP-3159:
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    Status: Open  (was: Patch Available)

> FileSystem cache keep overwriting cached value
> ----------------------------------------------
>
>                 Key: HADOOP-3159
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3159
>             Project: Hadoop Core
>          Issue Type: Bug
>    Affects Versions: 0.16.2
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>            Priority: Blocker
>             Fix For: 0.16.3, 0.17.0
>
>         Attachments: 3159_20080402.patch
>
>
> Consider the following:
> {code}
> Configuration conf1 = new Configuration();
> FileSystem fs1 = FileSystem.get(conf1); //conf1 may be modified, the cache 
> key stored will use the modified values.
> Configuration conf2 = new Configuration(); //create another conf, which won't 
> have the modified values.
> FileSystem fs2 = FileSystem.get(conf2); //may initialize another FileSystem 
> instead of returning the cached FileSystem, since conf2 does not have the 
> modified values initially.
> {code}
> Therefore, FileSystem.get(conf) may keeps creating FileSystem and replaces 
> the cached one.

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