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Posted to dev@hive.apache.org by "Tim Armstrong (JIRA)" <ji...@apache.org> on 2011/08/12 00:44:28 UTC

[jira] [Updated] (HIVE-2370) Improve RCFileCat performance significantly

     [ https://issues.apache.org/jira/browse/HIVE-2370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong updated HIVE-2370:
--------------------------------

    Status: Patch Available  (was: Open)

> 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
>         Attachments: rcfilecat_2011-08-11.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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