The AWSElasticMapReduce namespace includes the following metrics Note Amazon

The awselasticmapreduce namespace includes the

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The AWS/ElasticMapReduce namespace includes the following metrics. Note Amazon EMR pulls metrics from a cluster. If a cluster becomes unreachable, no metrics are reported until the cluster becomes available again. The following metrics are available for clusters running Hadoop 2.x versions. Metric Description Cluster Status IsIdle Indicates that a cluster is no longer performing work, but is still alive and accruing charges. It is set to 1 if no tasks are running and no jobs are running, and set to 0 otherwise. This value is checked at five-minute intervals and a value of 1 indicates only that the cluster was idle when checked, not that it was idle for 300
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Amazon EMR Management Guide CloudWatch Events and Metrics Metric Description the entire five minutes. To avoid false positives, you should raise an alarm when this value has been 1 for more than one consecutive 5-minute check. For example, you might raise an alarm on this value if it has been 1 for thirty minutes or longer. Use case: Monitor cluster performance Units: Boolean ContainerAllocated The number of resource containers allocated by the ResourceManager. Use case: Monitor cluster progress Units: Count ContainerReserved The number of containers reserved. Use case: Monitor cluster progress Units: Count ContainerPending The number of containers in the queue that have not yet been allocated. Use case: Monitor cluster progress Units: Count ContainerPendingRatio The ratio of pending containers to containers allocated (ContainerPendingRatio = ContainerPending / ContainerAllocated). If ContainerAllocated = 0, then ContainerPendingRatio = ContainerPending. The value of ContainerPendingRatio represents a number, not a percentage. This value is useful for scaling cluster resources based on container allocation behavior. Units: Count AppsCompleted The number of applications submitted to YARN that have completed. Use case: Monitor cluster progress Units: Count AppsFailed The number of applications submitted to YARN that have failed to complete. Use case: Monitor cluster progress, Monitor cluster health Units: Count AppsKilled The number of applications submitted to YARN that have been killed. Use case: Monitor cluster progress, Monitor cluster health Units: Count 301
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Amazon EMR Management Guide CloudWatch Events and Metrics Metric Description AppsPending The number of applications submitted to YARN that are in a pending state. Use case: Monitor cluster progress Units: Count AppsRunning The number of applications submitted to YARN that are running. Use case: Monitor cluster progress Units: Count AppsSubmitted The number of applications submitted to YARN. Use case: Monitor cluster progress Units: Count Node Status CoreNodesRunning The number of core nodes working. Data points for this metric are reported only when a corresponding instance group exists.
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  • Spring '12
  • LauraParker
  • Amazon Web Services, Amazon Elastic Compute Cloud

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