[MAPREDUCE-2981] Backport trunk fairscheduler to 0.20-security branch

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.20.205.0
• Fix Version/s: 0.20.205.0
• Component/s: contrib/fair-share
• Assignee: Matei Alexandru Zaharia
• Reporter: Matei Alexandru Zaharia
• Created: 11/Sep/11 00:42
• Updated: 19/Oct/11 17:13
• Resolved: 11/Sep/11 23:57

Description

A lot of improvements have been made to the fair scheduler in 0.21, 0.22 and trunk, but have not been ported back to the new 0.20.20X releases that are currently considered the stable branch of Hadoop.

Issue Links

• is related to: MAPREDUCE-3206 FairScheduler breaks writing of job tokens to MR system dir when using kerberos auth
• is related to: HDFS-2342 TestSleepJob and TestHdfsProxy broken after HDFS-2284