Right Pane Understanding the Oracle CEP Visualizer User Interface

1-4 Oracle Complex Event Processing Visualizer Users Guide Network tab. If you click on a particular stage of the network, such as a stream or processor, the right pane shows general information about it as well as stage-specific information, such as the rules for a processor. For more information, see Section 1.2.6, Overview of the Event Processing Network . Any open panels that require refresh are marked with a red X in the title of the panel. For more information, see Section 1.2.7, Oracle CEP Visualizer Panels that Require Refresh . Table 1–1 describes the buttons in the top right corner of the right pane that you can use to manage panels. Note that these buttons are not visible if you set the Max Open Panels preference to 1 see Section 2.2, Managing User Preferences .

1.2.4 Overview of the Oracle CEP Visualizer Dashboard

Figure 1–2 shows the Oracle CEP Visualizer dashboard: a performance management screen that you use to monitor the throughput and latency of a running application and its stages or a path between two stages. You get to the dashboard by clicking the Dashboard button in the top pane. Table 1–1 Panel Controls Button Description Minimize panel. Maximize panel to full window size. Maximize panel. Close all panels. Close panel. Overview of Oracle CEP Visualizer 1-5 Figure 1–2 Oracle CEP Visualizer Dashboard The dashboard has two main sections: ■ Management Events : the section at the top of the dashboard displays information and warning messages about the incoming monitoring events. Click the Warning bar to view the list of warning messages; click the Information bar to view the list of information messages. The Oracle CEP Visualizer monitoring feature defines a set of default EPL rules that specify when these alerts show up in the Management Events table; you can change the EPL rules to customize this behavior; see Section 7.4, Changing the dataservices Application Event Filter Rule Using EPL . ■ Performance Monitoring : the latency and throughput graphs display the amount of time it takes an event to pass through the specified stage or path in the EPN or the number of events passing through, respectively. The stage or path is defined in the diagnostic profile. The table at the bottom lists the available diagnostic profiles; when you click on a particular profile, the corresponding latency and throughput information is displayed in the graphs. See Section 4.6, Monitoring the Throughput and Latency of a Stage or Path in the EPN for details. For detailed instructions on how to use this monitoring feature, see Section 4.6, Monitoring the Throughput and Latency of a Stage or Path in the EPN .

1.2.5 Overview of the Stream Visualizer ViewStream Panel

The main purpose of the ViewStream panel is to allow users to watch events being published to a given HTTP publish-subscribe channel without any additional work. This is useful for debugging your application or just monitoring events flowing through the EPN. Click the ViewStream button in the top panel of Oracle CEP Visualizer, to display the Stream Visualizer panel as Figure 1–3 shows.