hadoop-common-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-3097) mapred.map.tasks and mapred.reduce.tasks should be determined automatically by default
Date Wed, 26 Mar 2008 18:33:26 GMT
mapred.map.tasks and mapred.reduce.tasks should be determined automatically by default
--------------------------------------------------------------------------------------

                 Key: HADOOP-3097
                 URL: https://issues.apache.org/jira/browse/HADOOP-3097
             Project: Hadoop Core
          Issue Type: New Feature
          Components: mapred
            Reporter: Doug Cutting


The default values for mapred.map.tasks and mapred.reduce.tasks should be empty or -1, signalling
that the framework should use an dynamically-determined default.  An appropriate default is
perhaps the number of map and reduce slots in the cluster, since FileInputFormat interprets
mapred.map.tasks as a minimum.

This would remove a common area of misconfiguration.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message