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From Prateek Maheshwari <>
Subject Re: Limiting the job coordinator port range
Date Tue, 04 Jun 2019 18:40:18 GMT
Hi Malcolm,

The JC server is currently started on a random port. This is because
multiple JCs can exist on the same host, so using a framework-wide
pre-defined port causes bind conflicts.
There's currently no way to narrow down the range or fix the port on a
per-job basis. If you want to add a config for specifying per-job AM
ports, please feel free to open a PR. The relevant code can be found
in SamzaYarnAppMasterService.


On Tue, Jun 4, 2019 at 10:58 AM Malcolm McFarland
<> wrote:
> Hey folks,
> Is there any way to specify which ports the tasks communicate with the job
> coordinator on? Right now it looks like it's 30000+. Is there any way to
> narrow this?
> Cheers,
> Malcolm McFarland
> Cavulus
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