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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5203) TT's version build is too restrictive
Date Wed, 11 Feb 2009 07:26:59 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12672536#action_12672536

Owen O'Malley commented on HADOOP-5203:

It you build the releases like the HowToRelease page describes, you'll get both 32 and 64
bit binaries with a single date stamp.

Hadoop doesn't support rolling upgrades and patching 1/2 of the TaskTrackers sounds like a
recipe for disaster.

> TT's version build is too restrictive
> -------------------------------------
>                 Key: HADOOP-5203
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5203
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.19.0
>            Reporter: Runping Qi
> At start time, TT checks whether its version is compatible with JT.
> The condition is too restrictive. 
> It will shut down itself if one of the following conditions fail:
> * the version numbers must match
> * the revision numbers must match
> * the user ids who build the jar must match
> * the build times must match
> I think it should check the major part of the version numbers only (thus any version
like 0.19.xxxx should be compatible).

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