Trackers

Trackers help watching mission-critical server data in real-time. All trackers are shown together in a single table to enable efficient monitoring. Each tracker is based on an expression, which may refer some server data or data originated by hardware devices. A simple expression may be used to monitor some value directly, while a more complicated one can track a combination of several values. For example, a tracker can be easily set up to watch dew point temperature calculated by temperature and absolute humidity measurements coming from different sensors.

Trackers module is deprecated in favor of Dashboards. Dashboards provide a much more flexible and advanced way to present mission-critical data.

Tracker status lets system operators quickly check state of a tracker by highlighting it in trackers list. Statuses can help detecting trackers that indicate warning and critical conditions of monitored values. It is possible to associate an unlimited number of user-defined statuses with every tracker.

Value of each active tracker's expression is recalculated periodically. Stateless and disabled trackers may be optionally hidden from the list.

Tracker list of Iotellect Client shows trackers collected from several servers, facilitating supervision of a large distributed Iotellect installation.

Here is what the trackers table looks like in Iotellect Client:

The basis of a tracker is a tracked expression written in Iotellect Expression Language. This expression may refer to some server data or to data originated from hardware Data Terminals. A simple tracked expression may be used to monitor some value directly, while more complicated ones help track combinations of several values. For example, a tracker can be easily set up to watch dew point temperature calculated by temperature and absolute humidity measurements coming from different sensors.

Every user has his own set of Trackers.

The value of each active tracker expression is recalculated periodically, as specified by the Check Period property of the tracker.

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