TT's version build is too restrictive
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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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