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From "Edward J. Yoon" <edwardy...@apache.org>
Subject Re: Groomservers IPC server port range
Date Wed, 05 Feb 2014 12:53:08 GMT

a Hama cluster uses ports "bsp.master.port" 40000 and
"bsp.groom.rpc.port" 50000 to communicate among the cluster nodes.

And the default peer port is 61000. If you set 3 for the maximum
number of tasks per node, each task uses ports from 61000 to 61003 to
transfer messages between bsp tasks.

On Wed, Feb 5, 2014 at 9:11 PM, Ηλίας Καπουράνης <ikapoura@csd.auth.gr>
> Hello there,
> I am trying to setup Hama in a cluster with really strict port permissions
> and I get across the error at every GroomServer:
> "There is a problem in establishing link with BSPMaster."
> - Do you know what is the range of ports that every GroomServers IPC Server
> gets when started?
> - Is there a way to limit this range to new user values?
> Thank you.

Best Regards, Edward J. Yoon

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