With the CloudMonitor service, you can view the connection numbers, QPS, and other traffic information of SLB listeners.
- Log on to the SLB console.
- Select the region where the target SLB instance is located.
- Click the ID of the SLB instance.
- In the left-side navigation pane, click Monitor.
- Select the monitor metrics that you want to view.
SLB supports viewing the following monitor metrics.
Monitor metrics Description Traffic
- Inbound traffic: The traffic consumed by external access.
- Outbound traffic: The traffic consumed by Server Load Balancer.
- Inbound packet: The number of request packets received per second.
- Outbound packet: The number of response packets sent per second.
Concurrent connection count
- Active connection: The number of established TCP connections. If persistent connections are used, a connection can transfer multiple file requests at one time.
- Inactive connection: The number of TCP connections that are not in the established status. You can use
netstat -ancommand to view the active connections.
- Concurrent connection: The total number of TCP connections.
New connection The average number of new TCP connections established from clients to the Server Load Balancer in the statistical period. Dropped Traffic
- Dropped inbound traffic: The amount of inbound traffic dropped per second.
- Dropped outbound traffic: The amount of outbound traffic dropped per second.
- Dropped inbound packet: The number of inbound packets dropped per second.
- Dropped outbound packet: The number of outbound packets dropped per second.
Dropped Connection The number of TCP connections dropped per second. The following metrics are specific to Layer-7 listeners. QPS The number of HTTP/HTTPS requests that can be handled per second. RT The average response time of Server Load Balancer. Status Code(2XX)/(3xx)/(4xx)(5xx)(Others) The average number of HTTP response codes generated by the listener. UpstreamCode4XX/5XX The average number of HTTP response codes generated by the backend server. UpstreamRT The average response time of the backend server.