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From "Zheng Shao (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-812) Hive compiled with "ant package" should work with hadoop 0.17
Date Thu, 03 Sep 2009 19:02:57 GMT

    [ https://issues.apache.org/jira/browse/HIVE-812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12751129#action_12751129
] 

Zheng Shao commented on HIVE-812:
---------------------------------

I ran the tests in the following order, and it all passed:

{code}
ant clean package
ant test -Dhadoop.version=0.17.2.1
ant test -Dhadoop.version=0.18.3
ant test -Dhadoop.version=0.19.0
ant test -Dhadoop.version=0.20.0
{code}

We are already running tests in parallel using a little different way. The test for one hadoop
version takes around 18 minutes with 4 parallel tests, on a machine with 16GB memory and 4
cpu cores.


> Hive compiled with "ant package" should work with hadoop 0.17
> -------------------------------------------------------------
>
>                 Key: HIVE-812
>                 URL: https://issues.apache.org/jira/browse/HIVE-812
>             Project: Hadoop Hive
>          Issue Type: Bug
>    Affects Versions: 0.4.0, 0.5.0
>            Reporter: Zheng Shao
>            Assignee: Zheng Shao
>         Attachments: HIVE-812.1.patch, HIVE-812.2.patch
>
>
> The goal of shims is to make Hive compiled with "ant package" to work with any version
of hadoop.
> However currently it is not working with hadoop 0.17 for a minor issue:
> org.apache.hadoop.io.Text.compareTo was inherited (and NOT overriden) from org.apache.hadoop.io.BinaryComparable.compareTo
in hadoop 0.18 and above. When compiling Hive by default, we will compile it against hadoop
0.19.0. Java compiler will automatically replace org.apache.hadoop.io.Text.compareTo with
org.apache.hadoop.io.BinaryComparable.compareTo in some places, and that caused the problem.

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