This dashboard provides an interface to view and analyze metrics from your Amazon Classic ELB.

Metric visualization Metric name Description
Healthy Host Count aws_elb_healthy_host_count_maximum The number of healthy instances registered with your load balancer.
Unhealthy Host Count aws_elb_un_healthy_host_count_maximum The number of unhealthy instances registered with your load balancer.
Request Count aws_elb_request_count_sum The number of requests completed or connections made during the specified interval.
Latency aws_elb_latency_average Average time elapsed, in seconds, from the time the load balancer sent the request to a registered instance until the instance started to send the response headers.
Surge Queue Length aws_elb_surge_queue_length_maximum The total number of requests (HTTP listener) or connections (TCP listener) that are pending routing to a healthy instance.
Http 4xx Errors aws_elb_httpcode_elb_4_xx_sum The number of HTTP 4XX client error codes generated by the load balancer.
Http 5xx Errors aws_elb_httpcode_elb_5_xx_sum The number of HTTP 5XX client error codes generated by the load balancer.
Percent Of Http 2xx Codes Out of Total Http Codes aws_elb_httpcode_backend_2_xx_sum, aws_elb_httpcode_backend_3_xx_sum, aws_elb_httpcode_backend_4_xx_sum Percent of HTTP 2XX client error codes generated by the load balancer in relation to the total number of HTTP client error codes.
Backend Connection Errors aws_elb_backend_connection_errors_sum The number of connections that were not successfully established between the load balancer and the registered instances.
Backend 5xx Errors aws_elb_httpcode_backend_5_xx_sum The number of HTTP 5XX response codes generated by registered instances.
Backend 4xx Errors aws_elb_httpcode_backend_4_xx_sum The number of HTTP 4XX response codes generated by registered instances.
Backend 3xx Errors aws_elb_httpcode_backend_3_xx_sum The number of HTTP 3XX response codes generated by registered instances.
Backend 2xx Errors aws_elb_httpcode_backend_2_xx_sum The number of HTTP 2XX response codes generated by registered instances.