Features
Discovery of Zenoss systems, processes and metrics thereof.
Monitoring of process metric values.
Monitoring of process metric freshness.
The features added by this ZenPack can be summarized as follows. They are detailed further below.
Discovery
The following entities will be automatically discovered from server devices that are running Zenoss, have the zenoss.snmp.ZenossSNMP modeler plugin assigned, and have the zenoss-snmp-module extension to Net-SNMP installed and configured properly.
Zenoss Systems
Attributes: Name
Collections: Zenoss Processes, Zenoss Metrics
Zenoss Processes
Attributes: Name, System
Collections: Zenoss Metrics
Zenoss Metrics
Attributes: Name, System, Process
Monitoring
The following metrics will be collected every 5 minutes by default.
Metrics
Metrics: zenProcessMetricValue, zenProcessMetricCyclesSinceUpdate
zenProcessMetricValue is the most recent value recorded for the metric. It will be NaN in cases where a value hasn't been recorded recently.
zenProcessMetricCyclesSinceUpdate is how many "cycle intervals" it has been since the value was successfully recorded. This measure is used because some metrics are updated on different cycle intervals. For example, if the localhost-zenperfsnmp-devices metric is updated every 300 seconds and was last updated 30 seconds ago, the zenProcessMetricCyclesSinceUpdate value will be 0.1.
By default a maximum threshold of 2 is set for zenProcessMetricCyclesSinceUpdate on all discovered metrics. This can be used to identify Zenoss processes that are not functioning properly.
Service Impact
When combined with the Zenoss Service Dynamics product, this ZenPack adds service impact capability for the entities it discovers. The following service impact relationships are automatically added. These will be included in any services that contain one or more of the explicitly mentioned entities.
Service Impact Relationships
A Device failure impacts all associated Zenoss Systems.
A Zenoss System failure impacts all associated Zenoss Processes.
A Zenoss Process failure impacts all associated Zenoss Metrics.
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