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Posted to dev@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2013/03/12 19:53:14 UTC

[jira] [Commented] (HIVE-4139) MiniDFS shim does not work for hadoop 2

    [ https://issues.apache.org/jira/browse/HIVE-4139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13600329#comment-13600329 ] 

Ashutosh Chauhan commented on HIVE-4139:
----------------------------------------

* Was there a reason to add this flag  -XX:+CMSClassUnloadingEnabled ?
* Can you briefly spell out the reason for shimming DFS and MiniMR cluster. Specifically, how these two are different in 20S and 23 ?
* There are some println statements which are commented. It will be good to change them to LOG.info
* After HIVE-4148 ivy.xmls are cleaned up, do we still need new deps of this patch?
                
> MiniDFS shim does not work for hadoop 2
> ---------------------------------------
>
>                 Key: HIVE-4139
>                 URL: https://issues.apache.org/jira/browse/HIVE-4139
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Gunther Hagleitner
>            Assignee: Gunther Hagleitner
>         Attachments: HIVE-4139.1.patch, HIVE-4139.2.patch, HIVE-4139.3.patch
>
>
> There's an incompatibility between hadoop 1 & 2 wrt to the MiniDfsCluster class. That causes the hadoop 2 line Minimr tests to fail with a "MethodNotFound" exception.

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