Dear Wiki user, You have subscribed to a wiki page or wiki category on "Hadoop Wiki" for change notification.
The "LimitingTaskSlotUsage" page has been changed by SomeOtherAccount. http://wiki.apache.org/hadoop/LimitingTaskSlotUsage?action=diff&rev1=6&rev2=7 -------------------------------------------------- If a task absolutely must break the rules, there are a few things one can do: + * Disable SpeculativeExecution . * Deploy ZooKeeper and use it as a persistent lock to keep track of how many tasks are running concurrently * Use a scheduler with a maximum task-per-queue feature and submit the job to that queue, such as FairShareScheduler or CapacityScheduler
