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The "LimitingTaskSlotUsage" page has been changed by SomeOtherAccount.
http://wiki.apache.org/hadoop/LimitingTaskSlotUsage?action=diff&rev1=2&rev2=3

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  If a task absolutely must break the rules, there are a few things one can do:
  
   * 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
+  * Use a scheduler with a maximum task-per-queue feature and submit the job 
to that queue, such as FairShareScheduler or CapacityScheduler
  
  == Job consumes too much RAM/disk IO/etc on a given node ==
  

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