Viewing Metrics

Scenarios

The DDM console supports monitoring and management of DDM instances. You can tune databases based on real-time monitoring results.

Prerequisites

• You have logged in to the DDM console.
• There is a DDM instance available, which has available schemas.

Procedure

1. In the instance list, locate the DDM instance whose metrics you want to view and click its name.
2. In the navigation pane, choose Monitoring.
3. Click Real-Time Monitoring.

   If load balancing is enabled for your DDM instance, select a time range to view metrics Inbound Rate, Outbound Rate, Unhealthy Servers, Healthy Servers, Layer-4 Inbound Bandwidth Usage, and Layer-4 Outbound Bandwidth Usage in the monitoring list. If load balancing is not enabled, you have no permissions to view these metrics.

   Figure 1 Real-time monitoring
   

   Table 1 Real-time monitoring parameters

   Parameter	Description
   Inbound Rate	Traffic used for accessing the monitored object from the Internet per second
   Outbound Rate	Traffic used by the monitored object to access the Internet per second
   Unhealthy Servers	Number of unhealthy backend servers associated with the monitored object
   Healthy Servers	Number of healthy backend servers associated with the monitored object
   Layer-4 Inbound Bandwidth Usage	Percentage of inbound TCP/UDP bandwidth from the monitored object to the client
   Layer-4 Outbound Bandwidth Usage	Percentage of outbound TCP/UDP bandwidth from the monitored object to the client

4. Click View Metric in the upper right corner.
5. On the Cloud Eye console, view monitoring metrics of the DDM instance.
   1. In the navigation pane, choose Cloud Service Monitoring > Distributed Database Middleware.
   2. In the instance list, locate the target DDM instance, click to view instance details, and click View Metric in the Operation column.
   3. On the displayed page, select the required monitoring period to view metric information.