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https://issues.apache.org/jira/browse/MAPREDUCE-4997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13576013#comment-13576013
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Hitesh Shah commented on MAPREDUCE-4997:
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For users to transition from MR1 to MR2, we are talking about a full cluster
change - replacing the JT/TTs with new daemons - RM/NMs. In this scenario, the
users would be well aware of the change and therefore have to make the
necessary config changes too. Therefore, it seems like not supporting
mapreduce.jobtracker.address would be more ideal so as to not give them the
wrong impression that the RM is a JT replacement.
> Deprecate mapreduce.jobtracker.address
> --------------------------------------
>
> Key: MAPREDUCE-4997
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4997
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Affects Versions: 2.0.2-alpha
> Reporter: Sandy Ryza
> Assignee: Sandy Ryza
>
> mapreduce.jobtracker.address currently is not used, but users transitioning
> from mr1 to mr2 may expect their previous job configs to work, so it should
> be deprecated in favor of yarn.resourcemanager.address.
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