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https://issues.apache.org/jira/browse/MAPREDUCE-5460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13752050#comment-13752050
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Rohith Sharma K S commented on MAPREDUCE-5460:
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As I see code, there is no validation for replacing @taskid@. Looks description
for "yarn.app.mapreduce.am.command-opts" is directly copied from
mapred.child.java.opts.
> MR AppMaster command options does not replace @taskid@ with the current task
> ID.
> --------------------------------------------------------------------------------
>
> Key: MAPREDUCE-5460
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5460
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: applicationmaster, mrv2
> Affects Versions: 3.0.0, 2.1.1-beta
> Reporter: Chris Nauroth
> Assignee: Rohith Sharma K S
>
> The description of {{yarn.app.mapreduce.am.command-opts}} in
> mapred-default.xml states that occurrences of {{@taskid@}} will be replaced
> by the current task ID. This substitution is not happening.
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