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This ZenPack adds the DurationThreshold threshold, which will apply the threshold comparison value against specified datapoints over a specific time range, and send an event when a certain percentage of the values violate the threshold. This can be used to create an event when a condition appears and clears over a particular time range.
A new threshold, DurationThreshold, that allows the following to be specified.
Note that NaN values are ignored, and so are empty RRD files in Zenoss 4.x.x.
Follow these steps to monitor the values of a datapoint collected over a period of time.
Alternatively Custom Properties can be defined and used for time period and percentage of violations. Consult the Custom Properties section of Administrator Guide for details.
The follow caveats apply to this ZenPack.
The DurationThreshold requires access to the Zenoss CentralQuery service when used with Zenoss versions 5 or later. In Zenoss 5.0.x only (not Zenoss 5.1.x or later) the collector services do not have access to CentralQuery by default.
Follow these steps to allow Zenoss 5.0.x to allow DurationThreshold to work. These steps are not necessary on Zenoss versions 5.1 or later.
The following steps use the zencommand collector service as an example. You would need to edit every collector service that might need to evaluate a DurationThreshold.
sudo serviced service edit zencommand
sudo serviced service restart zencommand
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