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Posted to common-user@hadoop.apache.org by Dennis Kubes <nu...@dragonflymc.com> on 2006/05/24 19:09:13 UTC

MapReduce Polling

Am I right in understanding that MapReduce tasks are not pushed to 
TaskTrackers by the JobTracker, but that the TaskTrackers continually 
poll the JobTracker for a Task to run and the JobTracker then hands off 
a Task to the TaskTracker based on load, pending tasks, etc?

Dennis

RE: MapReduce Polling

Posted by Mahadev Konar <ma...@yahoo-inc.com>.

Hi Dennis,
  You are right. Currently, that is what happens.

Regards
Mahadev

-----Original Message-----
From: Dennis Kubes [mailto:nutch-dev@dragonflymc.com] 
Sent: Wednesday, May 24, 2006 10:09 AM
To: hadoop-user@lucene.apache.org
Subject: MapReduce Polling

Am I right in understanding that MapReduce tasks are not pushed to 
TaskTrackers by the JobTracker, but that the TaskTrackers continually 
poll the JobTracker for a Task to run and the JobTracker then hands off 
a Task to the TaskTracker based on load, pending tasks, etc?

Dennis