[MAPREDUCE-2640] The maxRunningTasks property of the LimitTasksPerJob scheduler is ambiguous in its description, and must be updated

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 0.20.2
• Component/s: documentation
• Labels: doc
• Assignee: Harsh J
• Reporter: Harsh J
• Created: 04/Jul/11 06:44
• Updated: 09/Jan/12 09:56
• Resolved: 09/Jan/12 09:56

Description

The property's entry in mapred-default.xml is like so:

<property>
  <name>mapreduce.jobtracker.taskscheduler.maxrunningtasks.perjob</name>
  <value></value>
  <description>The maximum number of running tasks for a job before
  it gets preempted. No limits if undefined.
  </description>
</property>

There is no mention that this is a property exclusive to the LimitTasksPerJob scheduler alone. The doc ought to be updated to note that unless there's a plan of reusing such a property (I do not see fair or capacity schedulers utilizing this, and they use their own configs).