Using Ambari Core Services
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Ambari Server database

Metrics that show operating status for the Ambari server database.

Table 1. Ambari Server database metrics descriptions
Row Metrics 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).