set mapred.reduce.tasks to -1 in hive-default.xml
-------------------------------------------------
Key: HIVE-490
URL: https://issues.apache.org/jira/browse/HIVE-490
Project: Hadoop Hive
Issue Type: Bug
Components: Clients
Reporter: Joydeep Sen Sarma
this is profoundly irritating. we can estimate reducers. but since
hadoop-default.xml sets this to '1' - by default we don't. if we expect most
users to set this to -1 - then we might as well set it to -1 ourselves.
to not shoot ourselves in the foot - we might want to cap number of reducers
based on cluster size (like 2*Nodes).
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
