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Type:
Improvement
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Status: Open
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Priority:
Minor
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Resolution: Unresolved
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Affects Version/s: 2.7.5
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Fix Version/s: None
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Component/s: mr-am
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Labels:None
Currently, the Yarn task attempt listener binds to a random hight port ".setPort(0)"
For highly locked down environments, this can require a large number of opened ports between systems, which is troublesome.
I'd recommend either creating a new configuration item, or tying it to the MR_AM_JOB_CLIENT_PORT_RANGE.