[MAPREDUCE-803] Provide a command line option to clean up jobtracker system directory

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Component/s: jobtracker
• Assignee: Unassigned
• Reporter: Hemanth Yamijala
• Created: 24/Jul/09 10:10
• Updated: 23/Jul/14 20:29
• Resolved: 23/Jul/14 20:29

Description

When the JT is restarted, the mapreduce system directory's contents are used for job recovery. For sites that use this feature, there might be instances when we don't want to restart to read the mapred system directory. A sample use case is if there is a full cluster restart with a (typically minor) version upgrade of the Map/Reduce code base. To easily support such cases, it would be nice to provide a way for clean up the jobtracker system directory so that no files will be available for cleanup.

Issue Links

• is duplicated by: YARN-2131 Add a way to format the RMStateStore