[HADOOP-98] The JobTracker's count of the number of running maps and reduces is wrong

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.1.0
• Fix Version/s: 0.1.0
• Assignee: Owen O'Malley
• Reporter: Owen O'Malley
• Created: 23/Mar/06 16:13
• Updated: 08/Jul/09 16:51
• Resolved: 24/Mar/06 04:08

Description

When a heatbeat comes in from a task tracker, the job tracker just adds the number of currently running maps and reduces. The jobs from the previous heartbear are never subtracted. This causes the scheduling to misjudge the "loading" levels of the task trackers.