Hadoop DataNode activity (HADOOP_DATANODE_ACTIVITY)

This application class monitors Datanode activities of the KM. The DataNode activities include sending and receiving of data packets over the network, volume failures, flush, read, write operations etc. The Hadoop KM gathers these attributes by executing the following query:

<DataNode jmx url>?qry=Hadoop:service=DataNode,name=DataNodeActivity.*

where,

<DataNode jmx url> is the Java Management Extensions url, http://<<datanode host name>>:<<datanode 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

Attributes (parameters)