Hadoop NameNode UGI metrics (HADOOP_NAMENODE_UGIMETRICS)

The HADOOP_NAMENODE_UGIMETRICS application class monitors the user and group information activities of a NameNode group. The Hadoop KM gathers these attributes by executing the following query:

<NameNode jmx url>?qry=Hadoop:service=NameNode,name=UgiMetrics 

where,

<NameNode jmx url> is the Java Management Extensions url, http://<<NameNode host name>>:<<NameNode 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)

• Get groups avg time (GetGroupsAvgTime)
• Get groups num ops (GetGroupsNumOps)
• Login failure avg time (LoginFailureAvgTime)
• Login failure num ops (LoginFailureNumOps)
• Login success avg time (LoginSuccessAvgTime)
• Login success num ops (LoginSuccessNumOps)