[ https://issues.apache.org/jira/browse/HIVE-56?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Namit Jain resolved HIVE-56. ---------------------------- Fix Version/s: 0.6.0 Resolution: Fixed This was fixed a long time back. In hive, an empty input is created to start a dummy mapper > The reducer output is not created if the mapper input is empty > -------------------------------------------------------------- > > Key: HIVE-56 > URL: https://issues.apache.org/jira/browse/HIVE-56 > Project: Hadoop Hive > Issue Type: Bug > Components: Query Processor > Reporter: Namit Jain > Assignee: Namit Jain > Fix For: 0.6.0 > > > For some Hive stuff, I ran into the following scenario: > For a given map-reduce job, the input was empty. Because of that no mappers > and reducers were created. It would have been helpful if an empty output for > the reducer would have been created. > After browsing though the code, it seems that in initTasks() in > JobInProgress, no mappers and reducers are initialized if input is empty. > I was thinking of putting a fix there. If the input is empty, before > returning, create the output directory (as specified by the reducer) if > needed.Any comments/suggestions.... -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.