- name: stat
  type: group
  description: >
    Stats collected from HAProxy processes.
  release: ga
  fields:

    - name: status
      type: keyword
      description: >
        Status (UP, DOWN, NOLB, MAINT, or MAINT(via)...).

    - name: weight
      type: long
      description: >
        Total weight (for backends), or server weight (for servers).

    - name: downtime
      type: long
      description: >
        Total downtime (in seconds). For backends, this value is the downtime
        for the whole backend, not the sum of the downtime for the servers.

    - name: component_type
      type: integer
      description: >
        Component type (0=frontend, 1=backend, 2=server, or 3=socket/listener).

    - name: process_id
      type: integer
      description: >
        Process ID (0 for first instance, 1 for second, and so on).

    - name: service_name
      type: keyword
      description: >
        Service name (FRONTEND for frontend, BACKEND for backend, or any name for server/listener).

    - name: in.bytes
      type: long
      format: bytes
      description: >
        Bytes in.

    - name: out.bytes
      type: long
      format: bytes
      description: >
        Bytes out.

    - name: last_change
      type: integer
      description: >
        Number of seconds since the last UP->DOWN or DOWN->UP transition.

    - name: throttle.pct
      type: scaled_float
      format: percentage
      description: >
        Current throttle percentage for the server when slowstart
        is active, or no value if slowstart is inactive.

    - name: selected.total
      type: long
      description: >
        Total number of times a server was selected, either for new
        sessions, or when re-dispatching. For servers, this field reports the
        the number of times the server was selected.

    - name: tracked.id
      type: long
      description: >
        ID of the proxy/server if tracking is enabled.

    - name: connection
      type: group
      fields:

        - name: total
          type: long
          description: >
            Cumulative number of connections.

        - name: retried
          type: long
          description: >
            Number of times a connection to a server was retried.

        - name: time.avg
          type: long
          description: >
            Average connect time in ms over the last 1024 requests.

    - name: request
      type: group
      fields:

        - name: denied
          type: long
          description: >
            Requests denied because of security concerns.

              * For TCP this is because of a matched tcp-request content rule.
              * For HTTP this is because of a matched http-request or tarpit rule.

        - name: queued.current
          type: long
          description: >
            Current queued requests. For backends, this field reports the number
            of requests queued without a server assigned.

        - name: queued.max
          type: long
          description: >
            Maximum value of queued.current.

        - name: errors
          type: long
          description: >
            Request errors. Some of the possible causes are:

              * early termination from the client, before the request has been sent
              * read error from the client
              * client timeout
              * client closed connection
              * various bad requests from the client.
              * request was tarpitted.

        - name: redispatched
          type: long
          description: >
            Number of times a request was redispatched to another server. For
            servers, this field reports the number of times the server was
            switched away from.

        - name: connection.errors
          type: long
          description: >
            Number of requests that encountered an error trying to
            connect to a server. For backends, this field reports the sum of
            the stat for all backend servers, plus any connection errors not
            associated with a particular server (such as the backend having no
            active servers).

        - name: rate
          type: group
          description: >
          fields:
            - name: value
              type: long
              description: >
                Number of HTTP requests per second over the last elapsed second.
            - name: max
              type: long
              description: >
                Maximum number of HTTP requests per second.

        - name: total
          type: long
          description: >
            Total number of HTTP requests received.


    - name: response
      type: group
      fields:

        - name: errors
          type: long
          description: >
            Number of response errors. This value includes the number of data
            transfers aborted by the server (haproxy.stat.server.aborted).
            Some other errors are:

            * write errors on the client socket (won't be counted for the server stat)
            * failure applying filters to the response


        - name: time.avg
          type: long
          description: >
            Average response time in ms over the last 1024 requests (0 for TCP).

        - name: denied
          type: integer
          description: >
            Responses denied because of security concerns. For HTTP this is
            because of a matched http-request rule, or "option checkcache".

        - name: http
          type: group
          description: >

          fields:
            - name: 1xx
              type: long
              description: >
                HTTP responses with 1xx code.

            - name: 2xx
              type: long
              description: >
                HTTP responses with 2xx code.

            - name: 3xx
              type: long
              description: >
                HTTP responses with 3xx code.

            - name: 4xx
              type: long
              description: >
                HTTP responses with 4xx code.

            - name: 5xx
              type: long
              description: >
                HTTP responses with 5xx code.

            - name: other
              type: long
              description: >
                HTTP responses with other codes (protocol error).


    - name: session
      type: group
      fields:

        - name: current
          type: long
          description: >
            Number of current sessions.

        - name: max
          type: long
          description: >
            Maximum number of sessions.

        - name: limit
          type: long
          description: >
            Configured session limit.

        - name: rate
          type: group
          fields:
            - name: value
              type: integer
              description: >
                Number of sessions per second over the last elapsed second.

            - name: limit
              type: integer
              description: >
                Configured limit on new sessions per second.

            - name: max
              type: integer
              description: >
                Maximum number of new sessions per second.


    - name: check
      type: group
      description: >

      fields:
        - name: status
          type: keyword
          description: >
            Status of the last health check. One of:

              UNK     -> unknown
              INI     -> initializing
              SOCKERR -> socket error
              L4OK    -> check passed on layer 4, no upper layers testing enabled
              L4TOUT  -> layer 1-4 timeout
              L4CON   -> layer 1-4 connection problem, for example
                        "Connection refused" (tcp rst) or "No route to host" (icmp)
              L6OK    -> check passed on layer 6
              L6TOUT  -> layer 6 (SSL) timeout
              L6RSP   -> layer 6 invalid response - protocol error
              L7OK    -> check passed on layer 7
              L7OKC   -> check conditionally passed on layer 7, for example 404 with
                        disable-on-404
              L7TOUT  -> layer 7 (HTTP/SMTP) timeout
              L7RSP   -> layer 7 invalid response - protocol error
              L7STS   -> layer 7 response error, for example HTTP 5xx

        - name: code
          type: long
          description: >
            Layer 5-7 code, if available.

        - name: duration
          type: long
          description: >
            Time in ms that it took to finish the last health check.

        - name: health.last
          type: keyword
          description: >
            The result of the last health check.

        - name: health.fail
          type: long
          description: >
            Number of failed checks.

        - name: agent.last
          type: integer
          description: >

        - name: failed
          type: long
          description: >
            Number of checks that failed while the server was up.

        - name: down
          type: long
          description: >
            Number of UP->DOWN transitions. For backends, this value is the
            number of transitions to the whole backend being down, rather than
            the sum of the transitions for each server.

    - name: client.aborted
      type: integer
      description: >
        Number of data transfers aborted by the client.


    - name: server
      type: group
      description: >
      fields:

        - name: id
          type: integer
          description: >
            Server ID (unique inside a proxy).

        - name: aborted
          type: integer
          description: >
            Number of data transfers aborted by the server. This value is
            included in haproxy.stat.response.errors.

        - name: active
          type: integer
          description: >
            Number of backend servers that are active, meaning that they are
            healthy and can receive requests from the load balancer.

        - name: backup
          type: integer
          description: >
            Number of backend servers that are backup servers.


    - name: compressor
      type: group
      description: >

      fields:
        - name: in.bytes
          type: long
          format: bytes
          description: >
            Number of HTTP response bytes fed to the compressor.

        - name: out.bytes
          type: integer
          format: bytes
          description: >
            Number of HTTP response bytes emitted by the compressor.

        - name: bypassed.bytes
          type: long
          format: bytes
          description: >
            Number of bytes that bypassed the HTTP compressor (CPU/BW limit).

        - name: response.bytes
          type: long
          format: bytes
          description: >
            Number of HTTP responses that were compressed.

    - name: proxy
      type: group
      description: >

      fields:
        - name: id
          type: integer
          description: >
            Unique proxy ID.

        - name: name
          type: keyword
          description: >
            Proxy name.


    - name: queue
      type: group
      description: >

      fields:
        - name: limit
          type: integer
          description: >
            Configured queue limit (maxqueue) for the server, or nothing if the
            value of maxqueue is 0 (meaning no limit).

        - name: time.avg
          type: integer
          description: >
            The average queue time in ms over the last 1024 requests.