[MAPREDUCE-682] Reserved tasktrackers should be removed when a node is globally blacklisted

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.21.0
• Fix Version/s: 0.21.0
• Component/s: jobtracker
• Hadoop Flags: Reviewed
• Release Note: Jobtracker was modified to cleanup reservations created on tasktracker nodes to support high RAM jobs, when the nodes are blacklisted.
• Assignee: Sreekanth Ramakrishnan
• Reporter: Hemanth Yamijala
• Created: 30/Jun/09 06:14
• Updated: 24/Aug/10 21:14
• Resolved: 22/Jul/09 14:49

Description

When support was added to reserve tasktrackers for high RAM jobs per MAPREDUCE-516, we missed removing reservations on tasktrackers that are globally blacklisted. This is not a major concern, just that the reservation might cause the job to finish a little later than if the reservation is removed when the blacklisting happens.