Apache Ambari User Guide
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HBase - Misc

The HBase - Misc dashboards display miscellaneous metrics related to the HBase cluster. A couple of use cases for these metrics is to debug authentication and authorization issues and exceptions thrown from RegionServers.

RowMetrics

Description

REGIONS IN TRANSITION

Master - Regions in Transition

Number of regions in transition in the cluster.

Master - Regions in Transition Longer Than Threshold Time

Number of regions in transition that are in transition state for longer than 1 minute in the cluster.

Regions in Transition Oldest Age

Maximum time that a region stayed in transition state.

NUM THREADS - RUNNABLE

Master Num Threads - Runnable

Number of threads in the Master.

RegionServer Num Threads - Runnable

Number of threads in the RegionServer.

NUM THREADS - BLOCKED

Master Num Threads - Blocked

Number of threads in the Blocked State in the Master.

RegionServer Num Threads - Blocked

Number of threads in the Blocked State in the RegionServer.

NUM THREADS - WAITING

Master Num Threads - Waiting

Number of threads in the Waiting State in the Master.

RegionServer Num Threads - Waiting

Number of threads in the Waiting State in the RegionServer.

NUM THREADS - TIMED WAITING

Master Num Threads - Timed Waiting

Number of threads in the Timed-Waiting State in the Master.

RegionServer Num Threads - Timed Waiting

Number of threads in the Timed-Waiting State in the RegionServer.

NUM THREADS - NEW

Master Num Threads - New

Number of threads in the New State in the Master.

RegionServer Num Threads - New

Number of threads in the New State in the RegionServer.

NUM THREADS - TERMINATED

Master Num Threads - Terminated

Number of threads in the Terminated State in the Master.

RegionServer Num Threads - Terminated

Number of threads in the Terminated State in the RegionServer.

RPC AUTHENTICATION

RegionServer RPC Authentication Successes /s

Number of RPC successful authentications per second in the RegionServer.

RegionServer RPC Authentication Failures /s

Number of RPC failed authentications per second in the RegionServer.

RPC Authorization

RegionServer RPC Authorization Successes /s

Number of RPC successful autorizations per second in the RegionServer.

RegionServer RPC Authorization Failures /s

Number of RPC failed autorizations per second in the RegionServer.

EXCEPTIONS

Master Exceptions /s

Number of exceptions in the Master.

RegionServer Exceptions /s

Number of exceptions in the RegionServer.