[ https://issues.apache.org/jira/browse/HIVE-490?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
He Yongqiang updated HIVE-490: ------------------------------ Attachment: hive-490-2009-05-23.patch > 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 > Attachments: hive-490-2009-05-23.patch > > > 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.