Haproxy¶
Collection of Haproxy Metrics information.
Installation and Deployment¶
Version Requirements¶
- HAProxy 2.0
- HAProxy Enterprise 2.0r1
- HAProxy ALOHA 11.5
1. Enable Haproxy Metrics¶
Adjust the Haproxy configuration file by adding the following module configuration:
frontend prometheus
bind *:8405
mode http
http-request use-service prometheus-exporter if { path /metrics }
no log
......
Expose Metrics information via prometheus-exporter, on port 8405 with path /metrics.
Restart the Haproxy service. Access port 8405 to retrieve Metrics information, as shown below:
# HELP haproxy_process_nbthread Number of started threads (global.nbthread)
# TYPE haproxy_process_nbthread gauge
haproxy_process_nbthread 8
# HELP haproxy_process_nbproc Number of started worker processes (historical, always 1)
# TYPE haproxy_process_nbproc gauge
haproxy_process_nbproc 1
# HELP haproxy_process_relative_process_id Relative worker process number (1)
# TYPE haproxy_process_relative_process_id gauge
haproxy_process_relative_process_id 1
# HELP haproxy_process_uptime_seconds How long ago this worker process was started (seconds)
# TYPE haproxy_process_uptime_seconds gauge
haproxy_process_uptime_seconds 1364
...
2. DataKit Collector Configuration¶
2.1 Install DataKit¶
2.2 Configure the Collector¶
Since Haproxy can directly expose a metrics URL, it can be collected directly using the prom collector.
Navigate to the conf.d/prom directory under the DataKit installation directory, and copy prom.conf.sample to haproxy.conf.
cp prom.conf.sample haproxy.conf
Adjust the content of haproxy.conf as follows:
urls = ["http://localhost:8405/metrics"]
source = "haproxy"
## Keep Exist Metric Name
## If the keep_exist_metric_name is true, keep the raw value for field names.
keep_exist_metric_name = true
interval = "10s"
Other configurations may need adjustment
, parameter adjustment description:
- urls: The Metrics address for
haproxy, fill in the Metrics URL exposed by the corresponding component here. - source: Collector alias, recommended for differentiation.
- keep_exist_metric_name: Preserve the Metrics name.
- interval: Collection interval.
3. Restart DataKit¶
Metrics¶
Haproxy Metrics Set¶
| Metrics | Description | Unit |
|---|---|---|
haproxy_backend_bytes_in_total |
Total backend bytes in |
byte |
haproxy_backend_bytes_out_total |
Total backend bytes out |
byte |
haproxy_backend_client_aborts_total |
Total backend client aborts |
count |
haproxy_backend_connect_time_average_seconds |
Average backend connection time in seconds |
seconds |
haproxy_backend_connection_attempts_total |
Total backend connection attempts |
count |
haproxy_backend_connection_errors_total |
Total backend connection errors |
count |
haproxy_backend_connection_reuses_total |
Total backend connection reuses |
count |
haproxy_backend_current_queue |
Current backend queue |
count |
haproxy_backend_current_sessions |
Current backend sessions |
count |
haproxy_backend_internal_errors_total |
Total backend internal errors |
count |
haproxy_backend_loadbalanced_total |
Total backend load balancing |
count |
haproxy_backend_max_queue |
Maximum backend queue |
count |
haproxy_backend_max_sessions |
Maximum backend sessions |
count |
haproxy_backend_requests_denied_total |
Total backend requests denied |
count |
haproxy_backend_response_errors_total |
Total backend response errors |
count |
haproxy_backend_responses_denied_total |
Total backend responses denied |
count |
haproxy_backend_retry_warnings_total |
Total backend retry warnings |
count |
haproxy_backend_server_aborts_total |
Total backend server aborts |
count |
haproxy_backend_sessions_total |
Total backend sessions |
count |
haproxy_frontend_bytes_in_total |
Total frontend bytes in |
byte |
haproxy_frontend_bytes_out_total |
Total frontend bytes out |
byte |
haproxy_frontend_connections_total |
Total frontend connections |
count |
haproxy_frontend_current_sessions |
Current frontend sessions |
count |
haproxy_frontend_denied_connections_total |
Total frontend denied connections |
count |
haproxy_frontend_denied_sessions_total |
Total frontend denied sessions |
count |
haproxy_frontend_intercepted_requests_total |
Total frontend intercepted requests |
count |
haproxy_frontend_internal_errors_total |
Total frontend internal errors |
count |
haproxy_frontend_limit_session_rate |
Frontend session rate limit |
count |
haproxy_frontend_limit_sessions |
Frontend session limit |
count |
haproxy_frontend_max_sessions |
Maximum frontend sessions |
count |
haproxy_frontend_request_errors_total |
Total frontend request errors |
count |
haproxy_frontend_requests_denied_total |
Total frontend requests denied |
count |
haproxy_frontend_responses_denied_total |
Total frontend responses denied |
count |
haproxy_frontend_sessions_total |
Total frontend sessions |
count |
haproxy_server_bytes_in_total |
Total server bytes in |
byte |
haproxy_server_bytes_out_total |
Total server bytes out |
byte |
haproxy_server_response_errors_total |
Total server response errors |
count |
haproxy_server_response_time_average_seconds |
Average server response time in seconds |
seconds |
haproxy_server_responses_denied_total |
Total server responses denied |
count |
haproxy_server_retry_warnings_total |
Total server retry warnings |
count |
haproxy_server_safe_idle_connections_current |
Current safe idle server connections |
count |
haproxy_server_server_aborts_total |
Total server aborts |
count |
haproxy_server_sessions_total |
Total server sessions |
count |
haproxy_server_used_connections_current |
Current used server connections |
count |
haproxy_server_uweight |
Server non-weight |
count |
haproxy_server_weight |
Server weight |
count |
For more Metrics descriptions, refer to the Haproxy official documentation.