Viewing Overview Statistics and Alerts for a Cluster

View alerts for and monitor the performance of the selected ESP cluster by viewing overview statistics such as CPU, memory, and thread usage history.

Prerequisites

Enable the time-granularity option on the node in the Event Stream Processor project configuration (.ccr) file. See the Event Stream Processor Administrators Guide for information on the project configuration file.
Log in using the espMonitorRole role to be able to perform this task.

Task

In the Perspective Resources window, select the resource, click the arrow, and select Monitor Cluster.

In the left pane of the ESP Cluster Monitor view, select Overview.

Name	Statistics
Alerts	This is the header table containing all alerts that have fired for the nodes in the cluster after you open the ESP Cluster Monitor view. If you log off without closing this view, alerts that have fired since you logged back on display. Time - when the alert is triggered. Alert Name - name of the alert. This is based on the KPI. Resource - the resource for which the alert is triggered. Severity - alert severity rating. Possible severity ratings are Normal, Warning, or Critical, and are based on ranges of values you specified when setting the alert threshold. Value - the KPI value. The alert is triggered when the KPI value falls within the range of values you specified when setting the alert threshold. Threshold - the range of values you assigned to alert severity ratings. For example, if the low value for the Normal rating is 0 and the high value 100, the threshold is the range of 0 to 100.

Name

Statistics

Alerts

This is the header table containing all alerts that have fired for the nodes in the cluster after you open the ESP Cluster Monitor view. If you log off without closing this view, alerts that have fired since you logged back on display.

Time - when the alert is triggered.

Alert Name - name of the alert. This is based on the KPI.

Resource - the resource for which the alert is triggered.

Severity - alert severity rating. Possible severity ratings are Normal, Warning, or Critical, and are based on ranges of values you specified when setting the alert threshold.

Value - the KPI value. The alert is triggered when the KPI value falls within the range of values you specified when setting the alert threshold.

Threshold - the range of values you assigned to alert severity ratings. For example, if the low value for the Normal rating is 0 and the high value 100, the threshold is the range of 0 to 100.

These statistics display:

Statistics	Description
CPU History	Line graph displaying the average CPU user usage, CPU system usage, and total CPU usage across the cluster. The data on the graph starts displaying from the time you open the ESP Cluster Monitor view. If you log off without closing this view, statistics from the time that you logged back on display.
Memory Usage History	Line graph displaying average total memory usage across the cluster, in kilobytes (KB). The data on the graph starts displaying from the time you open the ESP Cluster Monitor view. If you log off without closing this view, statistics from the time that you logged back on display.
Thread Usage History	Line graph displaying the average number of threads used across the cluster. The data on the graph starts displaying from the time you open the ESP Cluster Monitor view. If you log off without closing this view, statistics from the time that you logged back on display.