Rejoining a Multi-Server Domain

4 Managing the Event Processing Network 4-1 4 Managing the Event Processing Network This section contains the typical application tasks you can perform with Oracle CEP Visualizer to manage the Event Processing Network EPN of a deployed Oracle CEP application, including: ■ Section 4.1, Viewing the EPN of an Application ■ Section 4.2, Viewing and Editing the Configuration of a Stage ■ Section 4.3, Recording and Playing Back Events in the EPN ■ Section 4.4, Tracing and Injecting Events in the EPN ■ Section 4.5, Monitoring a Channel Stage in the EPN ■ Section 4.6, Monitoring the Throughput and Latency of a Stage or Path in the EPN For more information, see Section 3.1, Event Processing Network EPN Management .

4.1 Viewing the EPN of an Application

Using the Oracle CEP Visualizer, you can view the EPN of a deployed application.

4.1.1 How to View the EPN of an Application

You can use the Oracle CEP Visualizer to view the EPN of a deployed application. To view the EPN of an application: 1. In the left pane, navigate to and expand the Applications node of the Oracle CEP instance to which the application is deployed.

2. Select appname, where appname is the name of the application whose EPN you

want to view.

3. In the right pane, click the Event Processing Network tab.

The Event Processor Network panel is displayed as Figure 4–1 shows. 4-2 Oracle Complex Event Processing Visualizer Users Guide Figure 4–1 Event Processing Network Panel The name of a stage appears above the stage in black text. For example, the first Oracle CQL processor is named FindCrossRates and the name of its inbound channel is FxQuoteStream. The name of the event type transmitted on a given channel is shown above the connecting line in blue text. For example, the event type transmitted on the FxQuoteStream is StockTick. 4. To navigate to areas of the EPN that are off the screen, click in the miniature EPN view, and drag. 5. To change the layout of the EPN, select a layout option from the Layout menu: ■ organic ■ tree ■ hierarchic default ■ balloon ■ orthogonal 6. To change the way the EPN fits in the browser window:

a. Click on the Zoom slider and drag to the right to increase the zoom level; drag

left to decrease the zoom level.

b. Click the Fit Content button to automatically adjust the zoom level to make all

of the EPN visible in the browser window; click the Actual Size button to reset the zoom level to zero. c. Click the Zoom Out + button or Zoom In - button.