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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3159) FileSystem cache keep overwriting cached value
Date Thu, 03 Apr 2008 00:32:24 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3159?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo (Nicholas), SZE updated HADOOP-3159:
-------------------------------------------

    Status: Patch Available  (was: Open)

> FileSystem cache keep overwriting cached value
> ----------------------------------------------
>
>                 Key: HADOOP-3159
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3159
>             Project: Hadoop Core
>          Issue Type: Bug
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>             Fix For: 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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