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6 Performance Monitoring and Management : 6.1 Using Dashboards to View Performance Information

PEM displays performance statistics through a number of dashboards; each dashboard contains a series of summary views that contain charts, graphs and tables that display the statistics related to the selected object.
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The top-level dashboard is the Global Overview (shown in Figure 6.1). The Global Overview presents a status summary of all the servers and agents that are being monitored by the PEM server, a list of the monitored servers, and the state of any currently triggered alerts. The PEM client displays the Global Overview when it connects to the PEM server. Other dashboards provide statistical information about monitored objects. These include the:
The Alerts dashboard displays the currently triggered alerts. If opened from the Global Overview, the dashboard displays the current alerts for all monitored nodes on the system; if opened from a node within a server, the report will reflect alerts related to that node, and all monitored objects that reside below that object in the tree control.
For Advanced Server users, the Audit Log Analysis dashboard allows you to browse the audit logs that have been collected from instances that have audit logging and collection enabled.
The Database Analysis dashboard displays performance statistics for the selected database.
The I/O Analysis dashboard displays I/O activity across various areas such as object DML activity, log operations and more.
The Memory Analysis dashboard supplies statistics concerning various memory-related metrics for the Postgres server.
The Object Activity Analysis dashboard provides performance details on tables/indexes of a selected database.
The Operating System Analysis dashboard supplies information regarding the performance of the underlying machine’s operating system.
The Probe Log Analysis dashboard displays any error messages returned by a PEM agent.
The Server Analysis dashboard provides general performance information about the overall operations of a selected Postgres server.
The Server Log Analysis dashboard allows you to filter and review the contents of server logs that are stored on the PEM server.
The Session Activity Analysis dashboard provides information about the session workload and lock activity for the selected server
The Session Waits Analysis dashboard provides an overview of the current DRITA wait events for an Advanced Server session.
The Storage Analysis dashboard displays space-related metrics for tablespaces and objects.
The System Waits Analysis dashboard displays a graphical analysis of system wait information for an Advanced Server session.
The Streaming Replication Analysis dashboard displays statistical information about WAL activity for a monitored server and allows you to monitor the status of Failover Manager clusters.
Select an active dashboard name from the Dashboards menu (accessed via the Management menu).
Right click on the name of a monitored object in the tree control and select the name of the dashboard you would like to review from the Dashboards menu.
Each dashboard is displayed on the Monitoring tab (shown in Figure 6.2), in the main panel of the client window.

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6 Performance Monitoring and Management : 6.1 Using Dashboards to View Performance Information

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