[MAPREDUCE-1153] Metrics counting tasktrackers and blacklisted tasktrackers are not updated when trackers are decommissioned.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.22.0
• Fix Version/s: 0.21.0
• Component/s: jobtracker
• Hadoop Flags: Reviewed
• Release Note: Update the number of trackers and blacklisted trackers metrics when trackers are decommissioned.
• Assignee: Sharad Agarwal
• Reporter: Hemanth Yamijala
• Created: 24/Oct/09 11:50
• Updated: 24/Aug/10 21:19
• Resolved: 02/Nov/09 07:57

Description

MAPREDUCE-1103 added instrumentation on the jobtracker to count the number of actual, blacklisted and decommissioned tasktrackers. When a tracker is decommissioned, the tasktracker count or the blacklisted tracker count is not decremented.