Difference between revisions of "Scheduler Hook Points"

Revision as of 15:44, 16 May 2011 (view source) Aviadpines (Talk | contribs) (Created page with 'Below are suspected locations of interest regarding the CDH3 (0.20.2) task scheduler: src/mapred/org/apache/hadoop/mapred/TaskScheduler.java - Topmost interface for all schedule…')		Revision as of 13:19, 3 July 2011 (view source) Ariy (Talk | contribs) Newer edit →
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	src/contrib/capacity-scheduler - Another Scheduler.		src/contrib/capacity-scheduler - Another Scheduler.
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		+	------ Classes dealing with block placements -------
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		+	The BlockPlacementPolicy interface and its default implementation BlockPalcementPolicyDefault, used to choose on which machine to put blocks (for each block).

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Revision as of 13:19, 3 July 2011

Below are suspected locations of interest regarding the CDH3 (0.20.2) task scheduler:

src/mapred/org/apache/hadoop/mapred/TaskScheduler.java - Topmost interface for all schedulers.

src/mapred/org/apache/hadoop/mapred/JobQueueTaskScheduler.java - Default FIFO Scheduler.

src/contrib/fairscheduler - Fair Scheduler.

src/contrib/capacity-scheduler - Another Scheduler.

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Classes dealing with block placements -------

The BlockPlacementPolicy interface and its default implementation BlockPalcementPolicyDefault, used to choose on which machine to put blocks (for each block).