Apache Ambari Operations
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Ambari Server Database

Metrics that show operating status for the Ambari server database.

RowMetrics

Description

TOTAL READ ALL QUERY

Total Read All Query Counter (Rate)

Total ReadAllQuery operations performed.

Total Read All Query Timer (Rate)

Total time spent on ReadAllQuery.

TOTAL CACHE HITS & MISSES

Total Cache Hits (Rate)

Total cache hits on Ambari Server with respect to EclipseLink cache.

Total Cache Misses (Rate)

Total cache misses on Ambari Server with respect to EclipseLink cache.

QUERY

Query Stages Timings

Average time spent on every query sub stage by Ambari Server

Query Types Avg. Timings

Average time spent on every query type by Ambari Server.

HOST ROLE COMMAND ENTITY

Counter.ReadAllQuery.HostRoleCommandEntity (Rate)

Rate (num operations per second) in which ReadAllQuery operation on HostRoleCommandEntity is performed.

Timer.ReadAllQuery.HostRoleCommandEntity (Rate)

Rate in which ReadAllQuery operation on HostRoleCommandEntity is performed.

ReadAllQuery.HostRoleCommandEntity

Average time taken for a ReadAllQuery operation on HostRoleCommandEntity (Timer / Counter).