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From Bikas Saha <bi...@hortonworks.com>
Subject RE: Fetching input
Date Wed, 23 Apr 2014 19:35:48 GMT
That is TBD and also required for the local runner case. The Fetcher should
be able to read from local disk directly if it can.

-----Original Message-----
From: Rohini Palaniswamy [mailto:rohini.aditya@gmail.com]
Sent: Wednesday, April 23, 2014 12:18 PM
To: dev@tez.incubator.apache.org
Subject: Fetching input

Hi,
   Does tez always fetch input from previous vertex through NodeManager or
it optimizes by fetching from local directory if task is scheduled on same
container/node?  For eg: if container is reused on a 1-1 edge, it would be
more optimal to read from task local directory than fetching through
NodeManager jetty.

Regards,
Rohini

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