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. For details, see Viewing Metrics.
Namespace¶
SYS.ELB
Metrics¶
Metric ID | Name | Description | Value | 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: N/A | >= 0 |
| 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: N/A | >= 0 | ||
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: N/A | >= 0 | ||
m4_ncps | New Connections | Number of TCP and UDP connections established between clients and the monitored object per second Unit: Count/s | >= 0/second | ||
m5_in_pps | Incoming Packets | Number of packets received by the monitored object per second Unit: Packet/s | >= 0/second | ||
m6_out_pps | Outgoing Packets | Number of packets sent from the monitored object per second Unit: Packet/s | >= 0/second | ||
m7_in_Bps | Inbound Rate | Traffic used for accessing the monitored object from the Internet per second Unit: byte/s | >= 0 bytes/s | ||
m8_out_Bps | Outbound Rate | Traffic used by the monitored object to access the Internet per second Unit: byte/s | >= 0 bytes/s | ||
m9_abnormal_servers | Unhealthy Servers | Number of unhealthy backend servers associated with the monitored object Unit: N/A | >= 0 |
| 1 minute |
ma_normal_servers | Healthy Servers | Number of healthy backend servers associated with the monitored object Unit: N/A | >= 0 | ||
mb_l7_qps | Layer-7 Query Rate | Number of requests the monitored object receives per second Unit: Query/s | >= 0 query/s |
| 1 minute |
md_l7_http_3xx | 3xx Status Codes | Number of 3xx status codes returned by the monitored object Unit: Count/s | >= 0/second |
| 1 minute |
mc_l7_http_2xx | 2xx Status Codes | Number of 2xx status codes returned by the monitored object Unit: Count/s | >= 0/second |
| 1 minute |
me_l7_http_4xx | 4xx Status Codes | Number of 4xx status codes returned by the monitored object Unit: Count/s | >= 0/second | ||
mf_l7_http_5xx | 5xx Status Codes | Number of 5xx status codes returned by the monitored object Unit: Count/s | >= 0/second | ||
m10_l7_http_other_status | Other Status Codes | Number of status codes returned by the monitored object except 2xx, 3xx, 4xx, and 5xx status codes Unit: Count/s | >= 0/second | ||
m11_l7_http_404 | 404 Not Found | Number of 404 Not Found status codes returned by the monitored object Unit: Count/s | >= 0/second | ||
m12_l7_http_499 | 499 Client Closed Request | Number of 499 Client Closed Request status codes returned by the monitored object Unit: Count/s | >= 0/second | ||
m13_l7_http_502 | 502 Bad Gateway | Number of 502 Bad Gateway status codes returned by the monitored object Unit: Count/s | >= 0/second | ||
m14_l7_rt | Average Layer-7 Response Time | Average 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. Unit: ms | >= 0 ms | ||
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 |
| 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 | ||
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 |
| 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 | ||
l7_con_usage | Layer-7 Concurrent Connection Usage | Ratio of HTTP and HTTPS connections established between the monitored object and backend servers per second, to the maximum number of concurrent connections allowed per second Unit: percent (%) | >= 0% | Load balancer | 1 minute |
l7_in_bps_usage | Layer-7 Inbound Bandwidth Usage | Ratio of the bandwidth that the monitored object uses to return response to clients over HTTP and HTTPS, to the maximum outbound bandwidth allowed Unit: percent (%) Inbound bandwidth usage <100 % Caution CAUTION: If the inbound bandwidth usage reaches 100%, the load balancer performance has reached the upper limit. If the inbound bandwidth keeps higher than the bandwidth that the load balancer can provide, the service availability cannot be guaranteed. | >= 0% | ||
l7_out_bps_usage | Layer-7 Outbound Bandwidth Usage | Ratio of the bandwidth that the monitored object uses to return response to clients over HTTP and HTTPS, to the maximum outbound bandwidth allowed Unit: percent (%) Outbound bandwidth usage <100 % Caution CAUTION: If the outbound bandwidth usage reaches 100%, the load balancer performance has reached the upper limit. If the outbound bandwidth keeps higher than the bandwidth that the load balancer can provide, the service availability cannot be guaranteed. | >= 0% | ||
l7_ncps_usage | Layer-7 New Connection Usage | Ratio of HTTP and HTTPS connections established between clients and the monitored object per second, to the maximum number of new connections allowed per second Unit: percent (%) | >= 0% | ||
l7_qps_usage | Layer 7 QPS Usage | Ratio of HTTP and HTTPS queries per second on the monitored object, to the maximum number of queries allowed per second Unit: percent (%) | >= 0% | ||
l4_con_usage | Layer-4 Concurrent Connection Usage | Ratio of TCP and UDP connections established between the monitored object and backend servers per second, to the maximum number of concurrent connections allowed per second Unit: percent (%) | >= 0% | Load balancer | 1 minute |
l4_in_bps_usage | Layer-4 Inbound Bandwidth Usage | Ratio of the bandwidth that the monitored object uses to receive requests from clients over TCP and UDP, to the maximum inbound bandwidth allowed Unit: percent (%) Inbound bandwidth usage <100 % Caution CAUTION: If the inbound bandwidth usage reaches 100%, the load balancer performance has reached the upper limit. If the inbound bandwidth keeps higher than the bandwidth that the load balancer can provide, the service availability cannot be guaranteed. | >= 0% | ||
l4_out_bps_usage | Layer-4 Outbound Bandwidth Usage | Ratio of the bandwidth that the monitored object uses to return response to clients over TCP and UDP, to the maximum outbound bandwidth allowed Unit: percent (%) Outbound bandwidth usage <100 % Caution CAUTION: If the outbound bandwidth usage reaches 100%, the load balancer performance has reached the upper limit. If the outbound bandwidth keeps higher than the bandwidth that the load balancer can provide, the service availability cannot be guaranteed. | >= 0% | ||
l4_ncps_usage | Layer-4 New Connection Usage | Ratio of TCP and UDP connections established between clients and the monitored object per second, to the maximum number of new connections allowed per second Unit: percent (%) | >= 0% |