Visualizing an Oracle High Availability Configuration

Managing Multi-Server Domains 18-9 Figure 18–10 Oracle Coherence Cluster Topology Tab This tab shows all cluster groups that the Oracle Coherence clustering implementation manages. For information on the various tools along the top of the topology canvas, see Section 18.3, Managing the Cluster Topology Diagram .

4. To view the properties for a given group, click on the group in the Group List.

5. To view the properties for a given server instance, click on the server instance in

the Group List.

18.2.2 How to Monitor Nodes in an Oracle Coherence Cluster

Using Oracle CEP Visualizer, you can compare a combination of properties for any and all nodes in an Oracle Coherence cluster. For a selected node in an Oracle Coherence cluster, you can view a select list of properties. Once you have determined the root cause of a problem, you can tune Oracle Coherence parameters to correct the problem. For more information, see Section 18.2.4, How to Tune Oracle Coherence . To monitor nodes in an Oracle Coherence cluster: 1. In the left pane, click the Domain node, where Domain refers to the name of your Oracle CEP domain. 18-10 Oracle Complex Event Processing Visualizer Users Guide

2. In the right pane, click the Coherence tab.

3. In the right pane, click the Multi-Nodes Monitor tab.

The Multi-Nodes Monitor tab appears as Figure 18–1 shows. Figure 18–11 Multi-Nodes Monitor Tab 4. Use the Multi-Nodes Monitor tab to customize the group table: ■ To change the order of columns, click on the column name in the cache chart and drag left or right. ■ To change the sort order of a column, click the triangle to the right of the column name in the cache chart. 5. Use the Multi-Nodes Monitor tab to compare any combination of the properties that Table 18–1 lists for any nodes in an Oracle Coherence cluster: ■ Expand a group and check one or more nodes. ■ Drag a property from the Drag Property to Watch area to either graph to watch that property or, select a property and click Add to Left or Add to Right . You may specify at most one property per graph. ■ A line is drawn for each selected node. The legend below the graph distinguishes graph data for each selected node by color.