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https://issues.apache.org/jira/browse/HADOOP-5203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12673038#action_12673038
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Rick Cox commented on HADOOP-5203:
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That's reasonable if you're manually building Hadoop and only Hadoop, but in
many scenarios, Hadoop is just one component, and is automatically built as
part of a much larger build system. It would be basically impossible to
automate the suggested build procedure using our internal build system. The one
OS distro I'm at all familiar with (NetBSD pkgsrc) seems like it would also
have trouble building like that; I'm guessing other from-source distributions
will as well.
> 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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