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From Peyman Mohajerian <mohaj...@gmail.com>
Subject Re: Gathering connection information
Date Sat, 07 Jun 2014 14:12:03 GMT
In my experience you build a node called Edge Node which has all the
libraries and configuration setting in XML to connect to the cluster, it
just doesn't have any of the Hadoop daemons running.

On Wed, Jun 4, 2014 at 2:46 PM, John Lilley <john.lilley@redpoint.net>

>  We’ve found that much of the Hadoop samples assume that running is being
> done form a cluster node, and that the connection information can be
> gleaned directly from a configuration object.  However, we always run our
> client from a remote computer, and our users must manually specify the
> NN/RM addresses and ports.  We’ve found this varies maddeningly between
> distros and especially on hosted virtual implementations.  Getting the
> wrong port results in various inscrutable errors with red-herring messages
> about security.  Is there a prescribed way to get the correct connection
> information more easily, like from a web API (where at least we’d only need
> one address and port)?
> john

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