How to View Oracle Coherence Cluster Topologies

Managing Multi-Server Domains 18-11 ■ To watch a different property, drag a new property and drop it onto the graph or, select a new property and click Add to Left or Add to Right. ■ To change the scale of a graph, drag the slider next to the vertical axis.

6. To view more details for a particular node, click the Node Detail View tab.

The Node Detail View tab appears as Figure 18–12 shows. Figure 18–12 Node Detail View Tab

7. Use the Node Detail View tab to compare the properties that

Table 18–2 lists for a selected node: ■ Select a node from the Nodes pull-down menu. The properties for the selected node are shown in the Nodes Properties list. ■ A line is drawn for the selected node. Table 18–1 Properties You Can Watch on the Multi-Nodes Monitor Tab Property Description Memory Available The total amount of free memory in MB for the selected node. Memory Max The total amount of memory available in MB for the selected node. Packets Sent The total number of Oracle Coherence packets sent by the selected node. Packets Received The total number of Oracle Coherence packets received by the selected node. Buffer Receive Size The total number of Oracle Coherence received packets that the selected node can buffer. Buffer Publish Size The total number of Oracle Coherence published packets that the selected node can buffer. 18-12 Oracle Complex Event Processing Visualizer Users Guide ■ To change the scale of a graph, drag the slider next to the vertical axis.

18.2.3 How to Monitor an Oracle Coherence Cache

Using Oracle CEP Visualizer, you can monitor a wide variety of Oracle Coherence cache parameters and graphically compare parameter values to locate and diagnose performance and operational problems. 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 an Oracle Coherence Cache: 1. In the left pane, click the Domain node, where Domain refers to the name of your Oracle CEP domain.

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

3. In the right pane, click the Cache Chart tab.

The Multi-Nodes Monitor tab appears as Figure 18–1 shows. Table 18–2 Properties You Can Watch on the Node Detail View Tab Property Description Memory Available The total amount of free memory in MB for the selected node. Memory Max The total amount of memory available in MB for the selected node. Packets Sent The total number of Oracle Coherence packets sent by the selected node. Packets Received The total number of Oracle Coherence packets received by the selected node.