Hadoop TaskTracker metrics (HADOOP_TASKTRACKER_METRICS)

 The HADOOP_TASKTRACKER_METRICS application class contains attributes that display the TaskTracker information. The attributes display the Map, Reduce and Shuffle operations of the TaskTracker. The Hadoop KM gathers these attributes by executing the following query:

<TaskTracker jmx url>?qry=Hadoop:service=TaskTracker,name=TaskTrackerMetrics 

where,

<TaskTracker jmx url> is the Java Management Extensions url, http://<<TaskTracker host name>>:<<TaskTracker port>>/jmx 

qry is Hadoop by default

service contains the type of the group, for example, DataNode, ResourceManager, JobTracker, ResourceManager, TaskTracker and other available groups

name contains the type of metrics data you want to collect and display, for example, JVMmetrics, Queuemetrics, RPCactivity and other available metrics types

Application class attributes

Item	Description
Active	Yes
Created by	Discovery
Parent class	HADOOP_TASK_TRACKER_NODE
Child class	None

Attributes (parameters)