How to Monitor HAProxy

The haproxy monitoring plugin monitors several metrics such as requests per second, connections, queue and more. These metrics are available per backend/frontend. Setting up monitoring for NGiNX with Nixstats is easy, you can read more at our helpdesk.

HAProxy Metrics

The following metrics are available from the HAProxy monitoring plugin. Source code is available on GitHub.

• qmax

  Maximum queue

• weight

  Weight

• wretr

  Connections retries

• slim

  Session limit

• comp_byp

  number of bytes that bypassed the HTTP compressor (CPU/BW limit)

• comp_rsp

  number of HTTP responses that were compressed

• rate

  Session rate

• wredis

  Redispatches

• comp_out

  number of HTTP response bytes emitted by the compressor

• rate_max

  Max. session rate

• comp_in

  number of HTTP response bytes fed to the compressor

• stot

  cumulative number of sessions

• bout

  Bytes Out

• bin

  Bytes In

• smax

  Maximum sessions

• lbtot

  Total number of times a server was selected, either for new sessions, or when re-dispatching. The server counter is the number of times that server was selected.

• dreq

  Denied requests

• econ

  Error connections

• qcur

  Current queue

• eresp

  Error responses

• cli_abrt

  number of data transfers aborted by the client

• srv_abrt

  number of data transfers aborted by the server (inc. in eresp)

• scur

  Current sessions

• slim

  Session limit

• rate

  Session rate

• req_rate

  HTTP request rate

• rate_max

  Max. session rate

• hrsp_1xx

  HTTP 1xx

• ereq

  Request errors

• dcon

  Denied Connections

• hrsp_4xx

  HTTP 4xx

• req_tot

  total number of HTTP requests received

• dresp

  responses denied because of security concerns. - For http this is because of a matched http-request rule, or "option checkcache".

• hrsp_other

  HTTP Other

• conn_rate_max

  highest known conn_rate

• hrsp_5xx

  HTTP 5xx

• dreq

  Denied requests

• req_rate_max

  Max HTTP request rate

• conn_tot

  cumulative number of connections

• smax

  Maximum sessions

• conn_rate

  number of connections over the last elapsed second

• dses

  requests denied by "tcp-request session" rules

• scur

  Current sessions

• rate_lim

  Session rate limit

• intercepted

  cum. number of intercepted requests (monitor, stats)

• hrsp_2xx

  HTTP 2xx

• hrsp_3xx

  HTTP 3xx