HistoryPerf Class Reference

Monitor class to collect and manage part of the Monitor History Database. More...

Inheritance diagram for HistoryPerf:

Collaboration diagram for HistoryPerf:

Public Member Functions
_.Library.Status	GetSample ()
	Get the basic SYS.History.PerfData sample for the Monitor History Database. More...
_.Library.Status	Startup ()
	Initialize property values.

Public Attributes
	Length
	Length of last sample. More...
	Status
	Status of last sample. More...

Detailed Description

Monitor class to collect and manage part of the Monitor History Database.

This class collects the SYS.History.PerfData samples for the Performance Metrics, as defined in the Performance and WriteDaemon classes, at short intervals (default of 30 seconds).

By default the SYS.History.PerfData collection is kept for 7 days and then purged. The number of days to keep may be modified using SYS.History.PerfData:SetPurge() The Detail samples can be automatically rolled up at the end of each day into Hourly (SYS.History.Hourly) or Daily (SYS.History Daily) summaries, which can be kept for longer periods.

Member Function Documentation

GetSample()

_.Library.Status GetSample

(

)

Get the basic SYS.History.PerfData sample for the Monitor History Database.

This method also handles purging and accumulation of the Detail metrics into the long term database (SYS.History.Hourly and SYS.History.Daily).

Member Data Documentation

Length

Length

Length of last sample.

 

Status

Status

Status of last sample.