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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-2370) Improve RCFileCat performance significantly
Date Sun, 14 Aug 2011 03:36:32 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2370?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13084781#comment-13084781
] 

Hudson commented on HIVE-2370:
------------------------------

Integrated in Hive-trunk-h0.21 #893 (See [https://builds.apache.org/job/Hive-trunk-h0.21/893/])
    HIVE-2370. Improve RCFileCat performance significantly (Tim Armstrong via Ning Zhang)

nzhang : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1157323
Files : 
* /hive/trunk/cli/src/java/org/apache/hadoop/hive/cli/RCFileCat.java


> Improve RCFileCat performance significantly
> -------------------------------------------
>
>                 Key: HIVE-2370
>                 URL: https://issues.apache.org/jira/browse/HIVE-2370
>             Project: Hive
>          Issue Type: Improvement
>          Components: CLI
>    Affects Versions: 0.8.0
>            Reporter: Tim Armstrong
>            Assignee: Tim Armstrong
>            Priority: Minor
>             Fix For: 0.8.0
>
>         Attachments: rcfilecat_2011-08-11.patch, rcfilecat_2011-08-11b.patch
>
>
> The rcfilecat utility is extraordinarily slow: the throughput can be < 0.5 MB/s of
compressed RCFile.  We can implement much faster version to enable faster export of data from
Hive.

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