The top-level dashboard is the Global Overview
(shown in Figure 4.1). 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:
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.
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
Each dashboard is displayed on the Monitoring
tab in the main panel of the client window. After opening a dashboard, you can navigate to other dashboards within the same tab.
Options on the Dashboard Configuration
dialog allow you to link the time lines of all of the line graphs on the dashboard. To open the Dashboard Configuration
dialog (see Figure 4.2), click the Settings icon displayed in the dashboard header.
|Set the Link timelines of all the line charts
slider to Enable
to indicate that the specified timeline should be applied to line graphs displayed on the dashboard; if set to Disable
, your preferences will be preserved for later use, but will not modify the amount of data displayed.
|Use the Days
selector to specify the number of days of gathered data that should be displayed on line graphs.
|Use the Hour(s)
selector to specify the number of hours of gathered data that should be displayed on line graphs.
|Check the box next to Remember configuration for this dashboard
to indicate that the customized time span should be applied to the current dashboard only; if left unchecked, the time span will be applied globally to line graphs on all dashboards.