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From Sandy Ryza <sandy.r...@cloudera.com>
Subject Re: Yarn communication between containers
Date Wed, 27 Mar 2013 18:52:01 GMT
Hi tmp,

YARN doesn't provide an explicit protocol for doing this.  Applications are
expected to have their own mechanism for communication between task
containers, other task containers, and app masters.  If you want to see how
this is done in MapReduce, I would suggest looking at the
TaskUmbilicalProtocol, which is implemented on the AM side by
TaskAttemptListenerImpl and created on the Container side in YarnChild.
 Through such a protocol, you could give containers the locations of other
containers that would allow them to communicate correctly.


On Wed, Mar 27, 2013 at 5:08 AM, blah blah <tmp5330@gmail.com> wrote:

> Hi
> I would like the containers to communicate with each other (also some
> heart beats to AppMaster). How can I achieve this? Is there some code
> snippet in the Yarn project or tutorial, that could guide me on
> implementing this functionality?
> regards
> tmp

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