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Possible to limit ephemeral port range?

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I know the mapred config "yarn.app.mapreduce.am.job.client.port-range" can be configured, but I've read conflicting info on whether this setting actually sticks. Is this known to be working on HDP 2.3?

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Known MR issue, and it is currently pending patch testing:

https://issues.apache.org/jira/browse/MAPREDUCE-6338

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