Operations Basics / 5.3.5 Proactive Engine Sub Component

The Proactive Engine is a sub component of the CAE Feeder. The attributes and metrics mentioned in Table 5.5, “Proactive Engine JMX Monitoring” are suggested for monitoring.

`ProactiveEngine.KeysCount`
Type	Gauge
Value Type	int
Description	The total number of "keys" that need to be kept up-to-date by the CAE Feeder. The value may go down when destroying content or moving content outside the path configured for feeding. Should be monitored together with `ValuesCount`. See description of `ValuesCount` for details.
`ProactiveEngine.ValuesCount`
Type	Gauge
Value Type	int
Description	The number of "keys" whose latest evaluation is still up-to-date. This is a subset of the total number of keys returned by attribute `KeysCount` and thus `ValuesCount` is always less than or equal to `KeysCount`. The value may go down on invalidations. Monitoring typically observes the difference of `KeysCount` versus `ValuesCount`: A stable state is reached, when `KeysCount` is equal to `ValuesCount`. Otherwise, so if `ValuesCount` is less than `KeysCount`, the value of `ValuesCount` should increase over time. If it does not increase within a given amount of time, you should raise an alarm.

Table 5.5. Proactive Engine JMX Monitoring

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