This topic describes the metrics of Server Load Balancer (SLB).
When you call an API operation provided by Cloud Monitor, you may need to set the Namespace and Period parameters. Set the parameters for the current service in the following way:
- Set the Namespace parameter to acs_slb_dashboard.
- Set the Period parameter to an integral multiple of 60s. The default value is 60s.
The following table describes the valid values of the MetricName and Dimensions parameters for the current service.
| Metric | Unit | MetricName | Dimensions | Statistics |
|---|---|---|---|---|
| Number of Active Port Connections | Count | ActiveConnection | userId, instanceId, port, and protocol | Maximum, Minimum, and Average |
| Number of Discarded Port Connections | CountSecond | DropConnection | userId, instanceId, port, and protocol | Maximum, Minimum, and Average |
| Number of Discarded Inbound Data Packets by Port | CountSecond | DropPacketRX | userId, instanceId, port, and protocol | Maximum, Minimum, and Average |
| Number of Discarded Outbound Data Packets by Port | CountSecond | DropPacketTX | userId, instanceId, port, and protocol | Maximum, Minimum, and Average |
| Number of Discarded Inbound Bandwidth by Port | bit/s | DropTrafficRX | userId, instanceId, port, and protocol | Maximum, Minimum, and Average |
| Number of Discarded Outbound Bandwidth by Port | bit/s | DropTrafficTX | userId, instanceId, port, and protocol | Maximum, Minimum, and Average |
| Number of Backend Healthy ECS Instances by Port | Count | HeathyServerCount | userId, instanceId, port, and vip | Maximum, Minimum, and Average |
| Number of Inactive Port Connections | Count | InactiveConnection | userId, instanceId, port, and protocol | Maximum, Minimum, and Average |
| Number of Active Instance Connections | CountSecond | InstanceActiveConnection | userId and instanceId | Maximum, Minimum, and Average |
| Number of Discarded Instance Connections | CountSecond | InstanceDropConnection | userId and instanceId | Maximum, Minimum, and Average |
| Number of Discarded Inbound Data Packets by Instance | CountSecond | InstanceDropPacketRX | userId and instanceId | Maximum, Minimum, and Average |
| Number of Discarded Outbound Data Packets by Instance | CountSecond | InstanceDropPacketTX | userId and instanceId | Maximum, Minimum, and Average |
| Discarded Inbound Bandwidth by Instance | bit/s | InstanceDropTrafficRX | userId and instanceId | Maximum, Minimum, and Average |
| Discarded Outbound Bandwidth by Instance | bit/s | InstanceDropTrafficTX | userId and instanceId | Maximum, Minimum, and Average |
| Number of Inactive Instance Connections | CountSecond | InstanceInactiveConnection | userId and instanceId | Maximum, Minimum, and Average |
| Number of Concurrent Instance Connections | CountSecond | InstanceMaxConnection | userId and instanceId | Maximum, Minimum, and Average |
| Instance Max Connection Utilization | % | InstanceMaxConnectionUtilization | userId and instanceId | Maximum, Minimum, and Average |
| Number of New Instance Connections | CountSecond | InstanceNewConnection | userId and instanceId | Maximum, Minimum, and Average |
| InstanceNewConnectionUtilization | % | InstanceNewConnectionUtilization | userId and instanceId | Maximum, Minimum, and Average |
| Number of Inbound Data Packets by Instance | CountSecond | InstancePacketRX | userId and instanceId | Maximum, Minimum, and Average |
| Number of Outbound Data Packets by Instance | CountSecond | InstancePacketTX | userId and instanceId | Maximum, Minimum, and Average |
| Layer-7 Protocol Instance QPS | CountSecond | InstanceQps | userId and instanceId | Average |
| QPS Usage | % | InstanceQpsUtilization | userId and instanceId | Maximum, Minimum, and Average |
| Layer-7 Protocol Instance RT | ms | InstanceRt | userId and instanceId | Average |
| 2XX Status Code of Layer-7 Protocol Instance | CountSecond | InstanceStatusCode2xx | userId and instanceId | Average |
| 3XX Status Code of Layer-7 Protocol Instance | CountSecond | InstanceStatusCode3xx | userId and instanceId | Average |
| 4XX Status Code of Layer-7 Protocol Instance | CountSecond | InstanceStatusCode4xx | userId and instanceId | Average |
| 5XX Status Code of Layer-7 Protocol Instance | CountSecond | InstanceStatusCode5xx | userId and instanceId | Average |
| Other Status Codes of Layer-7 Protocol Instance | CountSecond | InstanceStatusCodeOther | userId and instanceId | Average |
| Number of Inbound Bandwidth by Instance | bit/s | InstanceTrafficRX | userId and instanceId | Maximum, Minimum, and Average |
| Number of Outbound Bandwidth by Instance | bit/s | InstanceTrafficTX | userId and instanceId | Maximum, Minimum, and Average |
| 4xx Status Code of Upstream on Layer-7 Protocol Instance | CountSecond | InstanceUpstreamCode4xx | userId and instanceId | Average |
| 5xx Status Code of Upstream on Layer-7 Protocol Instance | CountSecond | InstanceUpstreamCode5xx | userId and instanceId | Average |
| UpstreamRT on Layer-7 Protocol Instance | ms | InstanceUpstreamRt | userId and instanceId | Average |
| Number of Concurrent Port Connections | CountSecond | MaxConnection | userId, instanceId, port, and protocol | Maximum, Minimum, and Average |
| Number of New Port Connections | Count | NewConnection | userId, instanceId, port, and protocol | Maximum, Minimum, and Average |
| Number of Inbound Data Packets by Port | CountSecond | PacketRX | userId, instanceId, port, and protocol | Maximum, Minimum, and Average |
| Number of Outbound Data Packets by Port | CountSecond | PacketTX | userId, instanceId, port, and protocol | Maximum, Minimum, and Average |
| Layer-7 Protocol Port QPS | CountSecond | Qps | userId, instanceId, port, and protocol | Average |
| Layer-7 Protocol Port RT | ms | Rt | userId, instanceId, port, and protocol | Average |
| 2XX Status Code of Layer-7 Protocol Port | CountSecond | StatusCode2xx | userId, instanceId, port, and protocol | Average |
| 3XX Status Code of Layer-7 Protocol Port | CountSecond | StatusCode3xx | userId, instanceId, port, and protocol | Average |
| 4XX Status Code of Layer-7 Protocol Port | CountSecond | StatusCode4xx | userId, instanceId, port, and protocol | Average |
| 5XX Status Code of Layer-7 Protocol Port | CountSecond | StatusCode5xx | userId, instanceId, port, and protocol | Average |
| Other Status Codes of Layer-7 Protocol Port | CountSecond | StatusCodeOther | userId, instanceId, port, and protocol | Average |
| Port Inbound Bandwidth | bit/s | TrafficRXNew | userId, instanceId, port, and protocol | Maximum, Minimum, and Average |
| Port Outbound Bandwidth | bit/s | TrafficTXNew | userId, instanceId, port, and protocol | Maximum, Minimum, and Average |
| Number of Backend Unhealthy ECS Instances by Port | Count | UnhealthyServerCount | userId, instanceId, port, and vip | Maximum, Minimum, and Average |
| 4xx Status Code of Upstream on Layer-7 Protocol Port | CountSecond | UpstreamCode4xx | userId, instanceId, port, and protocol | Maximum, Minimum, and Average |
| 5xx Status Code of Upstream on Layer-7 Protocol Port | CountSecond | UpstreamCode5xx | userId, instanceId, port, and protocol | Maximum, Minimum, and Average |
| Layer-7 Protocol Instance UpstreamRt | ms | UpstreamRt | userId, instanceId, port, and protocol | Average |
| InternetOutRatePercent | % | InstanceTrafficTXUtilization | userId and instanceId | Maximum, Minimum, and Average |