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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2565) DFSPath cache of FileStatus can become stale
Date Thu, 05 Jun 2008 17:47:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12602724#action_12602724
] 

Tsz Wo (Nicholas), SZE commented on HADOOP-2565:
------------------------------------------------

See HADOOP-3493 for the failed TestStreamingFailure.

No test added since there are already a lot of tests using it.

> DFSPath cache of FileStatus can become stale
> --------------------------------------------
>
>                 Key: HADOOP-2565
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2565
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.16.0
>            Reporter: Doug Cutting
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: 2565_20080424.patch, 2565_20080604.patch, 2565_20080604b.patch
>
>
> Paths returned from DFS internally cache their FileStatus, so that getStatus(Path) does
not require another RPC.  This cache is never refreshed and become stale, resulting in program
error.
> This should not be fixed until FileSystem#listStatus() is removed by HADOOP-2563, and
user code is thus no longer dependent on this cache for good performance.

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