Monitoring Metrics

Overview

This section describes the namespace, the metrics that can be monitored by Cloud Eye, and dimensions of these metrics. You can view the metrics reported by ELB and the generated alarms on the Cloud Eye console.

Namespace

SYS.ELB

Load Balancer Metrics

For shared load balancers, you can view the monitoring metrics by load balancer or listener.

**Table 1** Metrics supported by each shared load balancer
Metric ID	Name	Description	Value Range	Monitored Object	Monitoring Period (Raw Data)
m1_cps	Concurrent Connections	Load balancing at Layer 4: total number of TCP and UDP connections from the monitored object to backend servers. Load balancing at Layer 7: total number of TCP connections from the clients to the monitored object. Unit: Count	≥ 0	Shared load balancer	1 minute
m2_act_conn	Active Connections	Number of TCP and UDP connections in the ESTABLISHED state between the monitored object and backend servers. You can run the following command to view the connections (both Windows and Linux servers): netstat -an Unit: Count	≥ 0	Shared load balancer	1 minute
m3_inact_conn	Inactive Connections	Number of TCP connections between the monitored object and backend servers except those in the ESTABLISHED state. You can run the following command to view the connections (both Windows and Linux servers): netstat -an Unit: Count	≥ 0	Shared load balancer	1 minute
m4_ncps	New Connections	Number of connections established between clients and the monitored object per second. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
m5_in_pps	Incoming Packets	Number of packets received by the monitored object per second. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
m6_out_pps	Outgoing Packets	Number of packets sent from the monitored object per second. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
m7_in_Bps	Inbound Rate	Traffic used for accessing the monitored object from the Internet. Unit: bytes/s	≥ 0 byte/s	Shared load balancer	1 minute
m8_out_Bps	Outbound Rate	Traffic used by the monitored object to access the Internet per second. Unit: bytes/s	≥ 0 byte/s	Shared load balancer	1 minute
m9_abnormal_servers	Unhealthy Servers	Number of unhealthy backend servers associated with the monitored object. Unit: Count	≥ 0	Shared load balancer	1 minute
ma_normal_servers	Healthy Servers	Number of healthy backend servers associated with the monitored object. Unit: Count	≥ 0	Shared load balancer	1 minute
m22_in_bandwidth	Inbound Bandwidth	Bandwidth used for accessing the monitored object from the Internet. Unit: bits/s	≥ 0 bit/s	Shared load balancer	1 minute
m23_out_bandwidth	Outbound Bandwidth	Bandwidth used by the monitored object to access the Internet. Unit: bits/s	≥ 0 bit/s	Shared load balancer	1 minute
m1e_server_rps	Reset Packets from Backend Servers	Number of reset packets sent from backend servers to clients. These reset packets are generated by the backend servers and then forwarded by the load balancer. This metric is available only for TCP listeners. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
m21_client_rps	Reset Packets from Clients	Number of reset packets sent by clients to backend servers. These reset packets are generated by clients and then forwarded by the load balancer. This metric is available only for TCP listeners. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
m1f_lvs_rps	Reset Packets from Load Balancers	Number of reset packets generated by the load balancer. This metric is available only for TCP listeners. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
mb_l7_qps	Layer-7 Query Rate	Number of requests the monitored object receives per second. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
mc_l7_http_2xx	Layer-7 2xx Status Codes	Number of 2xx status codes returned by the load balancer and backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
md_l7_http_3xx	Layer-7 3xx Status Codes	Number of 3xx status codes returned by the load balancer and backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
me_l7_http_4xx	Layer-7 4xx Status Codes	Number of 4xx status codes returned by the load balancer and backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
mf_l7_http_5xx	Layer-7 5xx Status Codes	Number of 5xx status codes returned by the load balancer and backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
m10_l7_http_other_status	Layer-7 Other Status Codes	Number of status codes returned by the load balancer and backend servers except 2xx, 3xx, 4xx, and 5xx status codes. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
m11_l7_http_404	Layer-7 404 Not Found	Number of 404 Not Found status codes returned by the load balancer and backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
m12_l7_http_499	Layer-7 499 Client Closed Request	Number of 499 Client Closed Request status codes returned by the load balancer and backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
m13_l7_http_502	Layer-7 502 Bad Gateway	Number of 502 Bad Gateway status codes returned by the load balancer and backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
m14_l7_rt	Average Layer-7 Response Time	Average response time of the monitored object. This metric is available only when the frontend protocol is HTTP or HTTPS. The response time starts when the monitored object receives requests from the clients and ends when it returns all responses to the clients. Unit: ms NOTE: The average response time it takes to establish a WebSocket connection may be very long. This metric cannot be used as a reference.	≥ 0 ms	Shared load balancer	1 minute
m15_l7_upstream_4xx	4xx Status Codes Backend	Number of 4xx status codes returned by the backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
m16_l7_upstream_5xx	5xx Status Codes Backend	Number of 5xx status codes returned by the backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer	1 minute
m17_l7_upstream_rt	Average Server Response Time	Average response time of backend servers. The response time starts when the monitored object routes the requests to the backend server and ends when the monitored object receives a response from the backend server. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: ms NOTE: The average response time it takes to establish a WebSocket connection may be very high. This metric cannot be used as a reference.	≥ 0 ms	Shared load balancer	1 minute
m1a_l7_upstream_rt_max	Maximum Server Response Time	Maximum response time of backend servers. The response time starts when the monitored object routes the requests to the backend server and ends when the monitored object receives a response from the backend server. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: ms	≥ 0 ms	Shared load balancer	1 minute
m1b_l7_upstream_rt_min	Minimum Server Response Time	Minimum response time of backend servers. The response time starts when the monitored object routes the requests to the backend server and ends when the monitored object receives a response from the backend server. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: ms	≥ 0 ms	Shared load balancer	1 minute
m1c_l7_rt_max	Maximum Layer-7 Response Time	Maximum response time of the monitored object. The response time starts when the monitored object receives requests from the clients and ends when it returns all responses to the clients. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: ms	≥ 0 ms	Shared load balancer	1 minute
m1d_l7_rt_min	Minimum Layer-7 Response Time	Minimum response time of the monitored object. The response time starts when the monitored object receives requests from the clients and ends when it returns all responses to the clients. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: ms	≥ 0 ms	Shared load balancer	1 minute
m25_l7_resp_Bps	Backend Server Response Bandwidth	The bandwidth that the monitored object uses to return response to clients. Unit: bits/s NOTE: When HTTP/2 is enabled for a listener, this metric cannot be used as a reference.	≥ 0 bit/s	Shared load balancer	1 minute
m24_l7_req_Bps	Backend Server Request Bandwidth	The bandwidth that the monitored object uses to receive requests from clients. Unit: bits/s NOTE: When HTTP/2 is enabled for a listener, this metric cannot be used as a reference.	≥ 0 bit/s	Shared load balancer	1 minute

Listener Metrics

**Table 2** Metrics supported by each listener
Metric ID	Name	Description	Value Range	Monitored Object	Monitoring Period (Raw Data)
m1_cps	Concurrent Connections	Load balancing at Layer 4: total number of TCP and UDP connections from the monitored object to backend servers. Load balancing at Layer 7: total number of TCP connections from the clients to the monitored object. Unit: Count	≥ 0	Shared load balancer - listener	1 minute
m2_act_conn	Active Connections	Number of TCP and UDP connections in the ESTABLISHED state between the monitored object and backend servers. You can run the following command to view the connections (both Windows and Linux servers): netstat -an Unit: Count	≥ 0	Shared load balancer - listener	1 minute
m3_inact_conn	Inactive Connections	Number of TCP connections between the monitored object and backend servers except those in the ESTABLISHED state. You can run the following command to view the connections (both Windows and Linux servers): netstat -an Unit: Count	≥ 0	Shared load balancer - listener	1 minute
m4_ncps	New Connections	Number of connections established between clients and the monitored object per second. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
m5_in_pps	Incoming Packets	Number of packets received by the monitored object per second. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
m6_out_pps	Outgoing Packets	Number of packets sent from the monitored object per second. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
m7_in_Bps	Inbound Rate	Traffic used for accessing the monitored object from the Internet. Unit: bytes/s	≥ 0 byte/s	Shared load balancer - listener	1 minute
m8_out_Bps	Outbound Rate	Traffic used by the monitored object to access the Internet per second. Unit: bytes/s	≥ 0 byte/s	Shared load balancer - listener	1 minute
m22_in_bandwidth	Inbound Bandwidth	Bandwidth used for accessing the monitored object from the Internet. Unit: bits/s	≥ 0 bit/s	Shared load balancer - listener	1 minute
m23_out_bandwidth	Outbound Bandwidth	Bandwidth used by the monitored object to access the Internet. Unit: bits/s	≥ 0 bit/s	Shared load balancer - listener	1 minute
m1e_server_rps	Reset Packets from Backend Servers	Number of reset packets sent from backend servers to clients. These reset packets are generated by the backend servers and then forwarded by the load balancer. This metric is available only for TCP listeners. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
m21_client_rps	Reset Packets from Clients	Number of reset packets sent by clients to backend servers. These reset packets are generated by clients and then forwarded by the load balancer. This metric is available only for TCP listeners. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
m1f_lvs_rps	Reset Packets from Load Balancers	Number of reset packets generated by the load balancer. This metric is available only for TCP listeners. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
mb_l7_qps	Layer-7 Query Rate	Number of requests the monitored object receives per second. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
mc_l7_http_2xx	Layer-7 2xx Status Codes	Number of 2xx status codes returned by the load balancer and backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
md_l7_http_3xx	Layer-7 3xx Status Codes	Number of 3xx status codes returned by the load balancer and backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
me_l7_http_4xx	Layer-7 4xx Status Codes	Number of 4xx status codes returned by the load balancer and backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
mf_l7_http_5xx	Layer-7 5xx Status Codes	Number of 5xx status codes returned by the load balancer and backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
m10_l7_http_other_status	Layer-7 Other Status Codes	Number of status codes returned by the load balancer and backend servers except 2xx, 3xx, 4xx, and 5xx status codes. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
m11_l7_http_404	Layer-7 404 Not Found	Number of 404 Not Found status codes returned by the load balancer and backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
m12_l7_http_499	Layer-7 499 Client Closed Request	Number of 499 Client Closed Request status codes returned by the load balancer and backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
m13_l7_http_502	Layer-7 502 Bad Gateway	Number of 502 Bad Gateway status codes returned by the load balancer and backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
m14_l7_rt	Average Layer-7 Response Time	Average response time of the monitored object. This metric is available only when the frontend protocol is HTTP or HTTPS. The response time starts when the monitored object receives requests from the clients and ends when it returns all responses to the clients. Unit: ms NOTE: The average response time it takes to establish a WebSocket connection may be very long. This metric cannot be used as a reference.	≥ 0 ms	Shared load balancer - listener	1 minute
m15_l7_upstream_4xx	4xx Status Codes Backend	Number of 4xx status codes returned by the backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
m16_l7_upstream_5xx	5xx Status Codes Backend	Number of 5xx status codes returned by the backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. Unit: Count/s	≥ 0/s	Shared load balancer - listener	1 minute
m17_l7_upstream_rt	Average Server Response Time	Average response time of backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. The response time starts when the monitored object routes the requests to the backend server and ends when the monitored object receives a response from the backend server. Unit: ms NOTE: The average response time it takes to establish a WebSocket connection may be very long. This metric cannot be used as a reference.	≥ 0 ms	Shared load balancer - listener	1 minute
m1a_l7_upstream_rt_max	Maximum Server Response Time	Maximum response time of backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. The response time starts when the monitored object routes the requests to the backend server and ends when the monitored object receives a response from the backend server. Unit: ms	≥ 0 ms	Shared load balancer - listener	1 minute
m1b_l7_upstream_rt_min	Minimum Server Response Time	Minimum response time of backend servers. This metric is available only when the frontend protocol is HTTP or HTTPS. The response time starts when the monitored object routes the requests to the backend server and ends when the monitored object receives a response from the backend server. Unit: ms	≥ 0 ms	Shared load balancer - listener	1 minute
m1c_l7_rt_max	Maximum Layer-7 Response Time	Maximum response time of the monitored object. This metric is available only when the frontend protocol is HTTP or HTTPS. The response time starts when the monitored object receives requests from the clients and ends when it returns all responses to the clients. Unit: ms	≥ 0 ms	Shared load balancer - listener	1 minute
m1d_l7_rt_min	Minimum Layer-7 Response Time	Minimum response time of the monitored object. This metric is available only when the frontend protocol is HTTP or HTTPS. The response time starts when the monitored object receives requests from the clients and ends when it returns all responses to the clients. Unit: ms	≥ 0 ms	Shared load balancer - listener	1 minute