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From "Joydeep Sen Sarma (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-1852) Reduce unnecessary DFSClient.rename() calls
Date Wed, 22 Dec 2010 22:47:03 GMT

     [ https://issues.apache.org/jira/browse/HIVE-1852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Joydeep Sen Sarma updated HIVE-1852:
------------------------------------

       Resolution: Fixed
    Fix Version/s: 0.7.0
           Status: Resolved  (was: Patch Available)

committed. thanks Ning.

> Reduce unnecessary DFSClient.rename() calls
> -------------------------------------------
>
>                 Key: HIVE-1852
>                 URL: https://issues.apache.org/jira/browse/HIVE-1852
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Ning Zhang
>            Assignee: Ning Zhang
>             Fix For: 0.7.0
>
>         Attachments: HIVE-1852.2.patch, HIVE-1852.3.patch, HIVE-1852.4.patch, HIVE-1852.5.patch,
HIVE-1852.6.patch, HIVE-1852.patch
>
>
> In Hive client side (MoveTask etc), DFSCleint.rename() is called for every file inside
a directory. It is very expensive for a large directory in a busy DFS namenode. We should
replace it with a single rename() call on the whole directory. 

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