diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/CapacityScheduler.apt.vm hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/CapacityScheduler.apt.vm index 38b9887..6bd9a7b 100644 --- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/CapacityScheduler.apt.vm +++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/CapacityScheduler.apt.vm @@ -297,18 +297,48 @@ Hadoop MapReduce Next Generation - Capacity Scheduler An is of the form , , . The special value of <<*>> implies . The special value of implies . The default is <<*>> for the root queue if not specified. - - * Reviewing the configuration of the CapacityScheduler + + * Other Properties + + * Resource Calculator + + +*--------------------------------------+--------------------------------------+ +|| Property || Description | +*--------------------------------------+--------------------------------------+ +| <<>> | | +| | The ResourceCalculator implementation to be used to compare Resources in the | +| | scheduler. The default i.e. org.apache.hadoop.yarn.util.resource.DefaultResourseCalculator | +| | only uses Memory while DominantResourceCalculator uses Dominant-resource | +| | to compare multi-dimensional resources such as Memory, CPU etc. A Java | +| | ResourceCalculator class name is expected. | +*--------------------------------------+--------------------------------------+ + + + * Data Locality + +*--------------------------------------+--------------------------------------+ +|| Property || Description | +*--------------------------------------+--------------------------------------+ +| <<>> | | +| | Number of missed scheduling opportunities after which the CapacityScheduler | +| | attempts to schedule rack-local containers. Typically, this should be set to | +| | number of nodes in the cluster. By default is setting approximately number | +| | of nodes in one rack which is 40. Positive integer value is expected.| +*--------------------------------------+--------------------------------------+ + + + * Reviewing the configuration of the CapacityScheduler Once the installation and configuration is completed, you can review it after starting the YARN cluster from the web-ui. - * Start the YARN cluster in the normal manner. + * Start the YARN cluster in the normal manner. - * Open the <<>> web UI. + * Open the <<>> web UI. - * The web-page should show the resource usages of individual - queues. + * The web-page should show the resource usages of individual + queues. []