This is documentation for Caché & Ensemble.

For information on converting to InterSystems IRIS, see the InterSystems IRIS Adoption Guide and the InterSystems IRIS In-Place Conversion Guide, both available on the WRC Distributions page (login required).

Home > Class Reference > %SYS namespace > %Monitor.System.HistorySys

%Monitor.System.HistorySys

class %Monitor.System.HistorySys extends %Monitor.System.Adaptor

%Monitor class to collect and manage part of the Monitor History Database. This class collects the SYS.History.SysData samples for the System Usage Metrics, as defined in the Usage and Database classes, at somewhat longer intervals than the History class (default of 5 minutes).

By default the SysData collection is kept for 7 days and then purged. The number of days to keep may be modified using SYS.History.PerfData:SetPurge() The SysData 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.

Property Inventory (Including Private)

Method Inventory (Including Private)

Properties (Including Private)

property Length as %Monitor.Integer;
Length of last sample
Property methods: LengthDisplayToLogical(), LengthGet(), LengthIsValid(), LengthLogicalToDisplay(), LengthNormalize(), LengthSet()
property Status as %Monitor.String;
Status of last sample
Property methods: StatusDisplayToLogical(), StatusGet(), StatusIsValid(), StatusLogicalToDisplay(), StatusLogicalToOdbc(), StatusNormalize(), StatusSet()

Methods (Including Private)

method GetSample() as %Status
Get the basic SYS.History.SysData 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).
method Startup() as %Status
Initialize property values

Inherited Members

Inherited Methods (Including Private)

FeedbackOpens in a new window