Metrics Dashboard
Statistics on Operational Insights can be monitored; per database, per node, per service, and per cluster. By means of Operational Insights Web Console, appropriate combinations of statistics can be selected for display, across multiple interactive dashboards.
Understanding Statistics Management
Operational Insights provides statistics; which are updated continuously, and so always represent the current state of the cluster. Statistics refer to buckets, nodes, clusters, and services.
Statistics can be viewed by means of the Operational Insights Web Console.
Manage Statistics with the UI
Users with the Full Admin role can assemble statistics as groups of charts, on the Dashboard of Operational Insights Web Console. This is visible by default after login and can at any time be displayed by navigating to the Dashboard section in the navigation bar.
Initially, prior to any definitions having been made, the Dashboard displays a blank interface ready for chart configuration.
At the bottom of the Dashboard, numbers are displayed to indicate which cluster-nodes are active, failed-over, pending rebalance, and inactive. The services present on the cluster are also indicated.
The Dashboard is divided into two main sections: the upper section contains Stat Interval and Nodes, while the lower section displays the charts themselves.
Additional information can be displayed by clicking on the Node Resources and Operational Insights controls.
Dashboard Access
All chart-content is provided by Nodes. Users whose roles allow them both to access Operational Insights Web Console and see administrative details on one or more nodes are able to see the default chart-content for those nodes. For example, the Full Admin, Cluster Admin, Read Only Admin, Local User Security Admin, and External User Security Admin roles permit display of charts for all nodes defined on the cluster.
Dashboard Controls
In the upper part of the screen, the following controls are available:
Stat Interval Control
The first control reads Stat Interval. When clicked, it displays a dropdown menu with the following time granularity options:
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Minute
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Hour
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Day
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Week
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Month
This control allows you to specify the time interval for statistical data aggregation and display.
Node Selection Control
The second control reads Nodes and indicates in parentheses the number of nodes currently in the cluster. Click on this control to display the individual nodes available for selection.
The default selection allows data from all server nodes to be displayed simultaneously. By selecting an individual node from the dropdown menu, the displayed data is restricted to that corresponding to the selected node.
Working with Charts
Charts display statistical data with colored lines representing different metrics for each cluster node. For example, CPU statistics may show blue and orange lines providing the CPU statistic for each of the cluster’s nodes.
Maximizing Charts
To improve readability, click on any chart to maximize it. When maximized, charts provide:
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A detailed view of the selected statistics.
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A vertically minimized version of the chart at the bottom of the display.
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A magnifying-glass icon for time period selection.
Time Period Selection
In the maximized view, you can select specific time periods by:
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Clicking at a starting point on the horizontal axis in the minimized chart.
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Dragging the cursor left or right to select a time period.
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The main chart will update to reflect the selected time period.