Preemption does not obey job priority
-------------------------------------
Key: MAPREDUCE-2210
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2210
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: jobtracker
Reporter: Adam Kramer
Preemption, as it currently works, kills running tasks that are "unfair" in terms of the amount
of task attention used by one job compared to another.
The bug is that pre-emption occurs such that HIGH priority jobs have their tasks killed when
the cluster is filled with lower-priority jobs. Pre-emption should only be allowed to kill
tasks for jobs with equal or lower priority.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
|