Collecting Data

Collecting Data

To begin collecting data, you must do the following:

• Use the System Monitor ^%SYSMONMGR utility in the %SYS namespace to activate the desired monitor classes (%Monitor.System.HistoryPerfOpens in a new tab or %Monitor.System.HistorySysOpens in a new tab) in Application Monitor (which is part of System Monitor). These classes are registered in the %SYS namespace by default.

• Restart System Monitor in the %SYS namespace.

See Using ^%SYSMONMGR to Manage Application Monitor and Start/Stop System Monitor for information about these procedures.

The detailed interval collection of data is defined in two persistent classes:

• SYS.History.PerfDataOpens in a new tab — Includes the performance and write daemon classes as embedded objects.

• SYS.History.SysDataOpens in a new tab — Includes the system usage and database classes.

The corresponding %Monitor classes must be activated in Application Monitor in order to collect data and build the history data:

• %Monitor.System.HistoryPerfOpens in a new tab — Collects instances of SYS.History.PerfDataOpens in a new tab samples.

• %Monitor.System.HistorySysOpens in a new tab — Collects SYS.History.SysDataOpens in a new tab samples.

System Monitor, including Application Monitor, starts by default in the %SYS namespace when the InterSystems IRIS instance starts. You can configured other startup namespaces, however. The %Monitor classes are provided by default only in %SYS, but can be added to other configured startup namespaces using ^%SYSMONMGR.