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haproxy/contrib/prometheus-exporter/service-prometheus.c
Willy Tarreau c3914d4fff MEDIUM: proxy: replace proxy->state with proxy->disabled 
The remaining proxy states were only used to distinguish an enabled
proxy from a disabled one. Due to the initialization order, both
PR_STNEW and PR_STREADY were equivalent after startup, and they
would only differ from PR_STSTOPPED when the proxy is disabled or
shutdown (which is effectively another way to disable it).

Now we just have a "disabled" field which allows to distinguish them.
It's becoming obvious that start_proxies() is only used to print a
greeting message now, that we'd rather get rid of. Probably that
zombify_proxy() and stop_proxy() should be merged once their
differences move to the right place.
2020-10-09 11:27:30 +02:00

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/*
* Promex is a Prometheus exporter for HAProxy
*
* It is highly inspired by the official Prometheus exporter.
* See: https://github.com/prometheus/haproxy_exporter
*
* Copyright 2019 Christopher Faulet <cfaulet@haproxy.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
*/
#include <haproxy/action-t.h>
#include <haproxy/api.h>
#include <haproxy/applet.h>
#include <haproxy/backend.h>
#include <haproxy/cfgparse.h>
#include <haproxy/compression.h>
#include <haproxy/dns.h>
#include <haproxy/frontend.h>
#include <haproxy/global.h>
#include <haproxy/http.h>
#include <haproxy/http_htx.h>
#include <haproxy/htx.h>
#include <haproxy/list.h>
#include <haproxy/listener.h>
#include <haproxy/log.h>
#include <haproxy/pipe.h>
#include <haproxy/pool.h>
#include <haproxy/proxy.h>
#include <haproxy/sample.h>
#include <haproxy/server.h>
#include <haproxy/ssl_sock.h>
#include <haproxy/stats.h>
#include <haproxy/stream.h>
#include <haproxy/stream_interface.h>
#include <haproxy/task.h>
/* Prometheus exporter applet states (appctx->st0) */
enum {
PROMEX_ST_INIT = 0, /* initialized */
PROMEX_ST_HEAD, /* send headers before dump */
PROMEX_ST_DUMP, /* dumping stats */
PROMEX_ST_DONE, /* finished */
PROMEX_ST_END, /* treatment terminated */
};
/* Prometheus exporter dumper states (appctx->st1) */
enum {
PROMEX_DUMPER_INIT = 0, /* initialized */
PROMEX_DUMPER_GLOBAL, /* dump metrics of globals */
PROMEX_DUMPER_FRONT, /* dump metrics of frontend proxies */
PROMEX_DUMPER_BACK, /* dump metrics of backend proxies */
PROMEX_DUMPER_LI, /* dump metrics of listeners */
PROMEX_DUMPER_SRV, /* dump metrics of servers */
PROMEX_DUMPER_DONE, /* finished */
};
/* Prometheus exporter flags (appctx->ctx.stats.flags) */
#define PROMEX_FL_METRIC_HDR 0x00000001
#define PROMEX_FL_INFO_METRIC 0x00000002
#define PROMEX_FL_STATS_METRIC 0x00000004
#define PROMEX_FL_SCOPE_GLOBAL 0x00000008
#define PROMEX_FL_SCOPE_FRONT 0x00000010
#define PROMEX_FL_SCOPE_BACK 0x00000020
#define PROMEX_FL_SCOPE_SERVER 0x00000040
#define PROMEX_FL_NO_MAINT_SRV 0x00000080
#define PROMEX_FL_SCOPE_ALL (PROMEX_FL_SCOPE_GLOBAL|PROMEX_FL_SCOPE_FRONT|PROMEX_FL_SCOPE_BACK|PROMEX_FL_SCOPE_SERVER)
/* The max length for metrics name. It is a hard limit but it should be
* enough.
*/
#define PROMEX_MAX_NAME_LEN 128
/* The expected max length for a metric dump, including its header lines. It is
* just a soft limit to avoid extra work. We don't try to dump a metric if less
* than this size is available in the HTX.
*/
#define PROMEX_MAX_METRIC_LENGTH 512
/* Matrix used to dump global metrics. Each metric points to the next one to be
* processed or 0 to stop the dump. */
const int promex_global_metrics[INF_TOTAL_FIELDS] = {
[INF_NAME] = INF_NBTHREAD,
[INF_VERSION] = 0,
[INF_RELEASE_DATE] = 0,
[INF_NBTHREAD] = INF_NBPROC,
[INF_NBPROC] = INF_PROCESS_NUM,
[INF_PROCESS_NUM] = INF_UPTIME_SEC,
[INF_PID] = 0,
[INF_UPTIME] = 0,
[INF_UPTIME_SEC] = INF_MEMMAX_MB,
[INF_MEMMAX_MB] = INF_POOL_ALLOC_MB,
[INF_POOL_ALLOC_MB] = INF_POOL_USED_MB,
[INF_POOL_USED_MB] = INF_POOL_FAILED,
[INF_POOL_FAILED] = INF_ULIMIT_N,
[INF_ULIMIT_N] = INF_MAXSOCK,
[INF_MAXSOCK] = INF_MAXCONN,
[INF_MAXCONN] = INF_HARD_MAXCONN,
[INF_HARD_MAXCONN] = INF_CURR_CONN,
[INF_CURR_CONN] = INF_CUM_CONN,
[INF_CUM_CONN] = INF_CUM_REQ,
[INF_CUM_REQ] = INF_MAX_SSL_CONNS,
[INF_MAX_SSL_CONNS] = INF_CURR_SSL_CONNS,
[INF_CURR_SSL_CONNS] = INF_CUM_SSL_CONNS,
[INF_CUM_SSL_CONNS] = INF_MAXPIPES,
[INF_MAXPIPES] = INF_PIPES_USED,
[INF_PIPES_USED] = INF_PIPES_FREE,
[INF_PIPES_FREE] = INF_CONN_RATE,
[INF_CONN_RATE] = INF_CONN_RATE_LIMIT,
[INF_CONN_RATE_LIMIT] = INF_MAX_CONN_RATE,
[INF_MAX_CONN_RATE] = INF_SESS_RATE,
[INF_SESS_RATE] = INF_SESS_RATE_LIMIT,
[INF_SESS_RATE_LIMIT] = INF_MAX_SESS_RATE,
[INF_MAX_SESS_RATE] = INF_SSL_RATE,
[INF_SSL_RATE] = INF_SSL_RATE_LIMIT,
[INF_SSL_RATE_LIMIT] = INF_MAX_SSL_RATE,
[INF_MAX_SSL_RATE] = INF_SSL_FRONTEND_KEY_RATE,
[INF_SSL_FRONTEND_KEY_RATE] = INF_SSL_FRONTEND_MAX_KEY_RATE,
[INF_SSL_FRONTEND_MAX_KEY_RATE] = INF_SSL_FRONTEND_SESSION_REUSE_PCT,
[INF_SSL_FRONTEND_SESSION_REUSE_PCT] = INF_SSL_BACKEND_KEY_RATE,
[INF_SSL_BACKEND_KEY_RATE] = INF_SSL_BACKEND_MAX_KEY_RATE,
[INF_SSL_BACKEND_MAX_KEY_RATE] = INF_SSL_CACHE_LOOKUPS,
[INF_SSL_CACHE_LOOKUPS] = INF_SSL_CACHE_MISSES,
[INF_SSL_CACHE_MISSES] = INF_COMPRESS_BPS_IN,
[INF_COMPRESS_BPS_IN] = INF_COMPRESS_BPS_OUT,
[INF_COMPRESS_BPS_OUT] = INF_COMPRESS_BPS_RATE_LIM,
[INF_COMPRESS_BPS_RATE_LIM] = INF_ZLIB_MEM_USAGE,
[INF_ZLIB_MEM_USAGE] = INF_MAX_ZLIB_MEM_USAGE,
[INF_MAX_ZLIB_MEM_USAGE] = INF_TASKS,
[INF_TASKS] = INF_RUN_QUEUE,
[INF_RUN_QUEUE] = INF_IDLE_PCT,
[INF_IDLE_PCT] = INF_STOPPING,
[INF_NODE] = 0,
[INF_DESCRIPTION] = 0,
[INF_STOPPING] = INF_JOBS,
[INF_JOBS] = INF_UNSTOPPABLE_JOBS,
[INF_UNSTOPPABLE_JOBS] = INF_LISTENERS,
[INF_LISTENERS] = INF_ACTIVE_PEERS,
[INF_ACTIVE_PEERS] = INF_CONNECTED_PEERS,
[INF_CONNECTED_PEERS] = INF_DROPPED_LOGS,
[INF_DROPPED_LOGS] = INF_BUSY_POLLING,
[INF_BUSY_POLLING] = INF_FAILED_RESOLUTIONS,
[INF_FAILED_RESOLUTIONS] = INF_TOTAL_BYTES_OUT,
[INF_TOTAL_BYTES_OUT] = INF_TOTAL_SPLICED_BYTES_OUT,
[INF_TOTAL_SPLICED_BYTES_OUT] = INF_BYTES_OUT_RATE,
[INF_BYTES_OUT_RATE] = 0,
[INF_DEBUG_COMMANDS_ISSUED] = 0,
};
/* Matrix used to dump frontend metrics. Each metric points to the next one to be
* processed or 0 to stop the dump. */
const int promex_front_metrics[ST_F_TOTAL_FIELDS] = {
[ST_F_PXNAME] = ST_F_STATUS,
[ST_F_SVNAME] = 0,
[ST_F_QCUR] = 0,
[ST_F_QMAX] = 0,
[ST_F_SCUR] = ST_F_SMAX,
[ST_F_SMAX] = ST_F_SLIM,
[ST_F_SLIM] = ST_F_STOT,
[ST_F_STOT] = ST_F_RATE_LIM,
[ST_F_BIN] = ST_F_BOUT,
[ST_F_BOUT] = ST_F_DREQ,
[ST_F_DREQ] = ST_F_DRESP,
[ST_F_DRESP] = ST_F_EREQ,
[ST_F_EREQ] = ST_F_DCON,
[ST_F_ECON] = 0,
[ST_F_ERESP] = 0,
[ST_F_WRETR] = 0,
[ST_F_WREDIS] = 0,
[ST_F_STATUS] = ST_F_SCUR,
[ST_F_WEIGHT] = 0,
[ST_F_ACT] = 0,
[ST_F_BCK] = 0,
[ST_F_CHKFAIL] = 0,
[ST_F_CHKDOWN] = 0,
[ST_F_LASTCHG] = 0,
[ST_F_DOWNTIME] = 0,
[ST_F_QLIMIT] = 0,
[ST_F_PID] = 0,
[ST_F_IID] = 0,
[ST_F_SID] = 0,
[ST_F_THROTTLE] = 0,
[ST_F_LBTOT] = 0,
[ST_F_TRACKED] = 0,
[ST_F_TYPE] = 0,
[ST_F_RATE] = 0,
[ST_F_RATE_LIM] = ST_F_RATE_MAX,
[ST_F_RATE_MAX] = ST_F_CONN_RATE_MAX,
[ST_F_CHECK_STATUS] = 0,
[ST_F_CHECK_CODE] = 0,
[ST_F_CHECK_DURATION] = 0,
[ST_F_HRSP_1XX] = ST_F_HRSP_2XX,
[ST_F_HRSP_2XX] = ST_F_HRSP_3XX,
[ST_F_HRSP_3XX] = ST_F_HRSP_4XX,
[ST_F_HRSP_4XX] = ST_F_HRSP_5XX,
[ST_F_HRSP_5XX] = ST_F_HRSP_OTHER,
[ST_F_HRSP_OTHER] = ST_F_INTERCEPTED,
[ST_F_HANAFAIL] = 0,
[ST_F_REQ_RATE] = 0,
[ST_F_REQ_RATE_MAX] = ST_F_REQ_TOT,
[ST_F_REQ_TOT] = ST_F_HRSP_1XX,
[ST_F_CLI_ABRT] = 0,
[ST_F_SRV_ABRT] = 0,
[ST_F_COMP_IN] = ST_F_COMP_OUT,
[ST_F_COMP_OUT] = ST_F_COMP_BYP,
[ST_F_COMP_BYP] = ST_F_COMP_RSP,
[ST_F_COMP_RSP] = 0,
[ST_F_LASTSESS] = 0,
[ST_F_LAST_CHK] = 0,
[ST_F_LAST_AGT] = 0,
[ST_F_QTIME] = 0,
[ST_F_CTIME] = 0,
[ST_F_RTIME] = 0,
[ST_F_TTIME] = 0,
[ST_F_AGENT_STATUS] = 0,
[ST_F_AGENT_CODE] = 0,
[ST_F_AGENT_DURATION] = 0,
[ST_F_CHECK_DESC] = 0,
[ST_F_AGENT_DESC] = 0,
[ST_F_CHECK_RISE] = 0,
[ST_F_CHECK_FALL] = 0,
[ST_F_CHECK_HEALTH] = 0,
[ST_F_AGENT_RISE] = 0,
[ST_F_AGENT_FALL] = 0,
[ST_F_AGENT_HEALTH] = 0,
[ST_F_ADDR] = 0,
[ST_F_COOKIE] = 0,
[ST_F_MODE] = 0,
[ST_F_ALGO] = 0,
[ST_F_CONN_RATE] = 0,
[ST_F_CONN_RATE_MAX] = ST_F_CONN_TOT,
[ST_F_CONN_TOT] = ST_F_BIN,
[ST_F_INTERCEPTED] = ST_F_CACHE_LOOKUPS,
[ST_F_DCON] = ST_F_DSES,
[ST_F_DSES] = ST_F_WREW,
[ST_F_WREW] = ST_F_EINT,
[ST_F_CONNECT] = 0,
[ST_F_REUSE] = 0,
[ST_F_CACHE_LOOKUPS] = ST_F_CACHE_HITS,
[ST_F_CACHE_HITS] = ST_F_COMP_IN,
[ST_F_SRV_ICUR] = 0,
[ST_F_SRV_ILIM] = 0,
[ST_F_QT_MAX] = 0,
[ST_F_CT_MAX] = 0,
[ST_F_RT_MAX] = 0,
[ST_F_TT_MAX] = 0,
[ST_F_EINT] = ST_F_REQ_RATE_MAX,
[ST_F_IDLE_CONN_CUR] = 0,
[ST_F_SAFE_CONN_CUR] = 0,
[ST_F_USED_CONN_CUR] = 0,
[ST_F_NEED_CONN_EST] = 0,
};
/* Matrix used to dump backend metrics. Each metric points to the next one to be
* processed or 0 to stop the dump. */
const int promex_back_metrics[ST_F_TOTAL_FIELDS] = {
[ST_F_PXNAME] = ST_F_STATUS,
[ST_F_SVNAME] = 0,
[ST_F_QCUR] = ST_F_QMAX,
[ST_F_QMAX] = ST_F_CONNECT,
[ST_F_SCUR] = ST_F_SMAX,
[ST_F_SMAX] = ST_F_SLIM,
[ST_F_SLIM] = ST_F_STOT,
[ST_F_STOT] = ST_F_RATE_MAX,
[ST_F_BIN] = ST_F_BOUT,
[ST_F_BOUT] = ST_F_QTIME,
[ST_F_DREQ] = ST_F_DRESP,
[ST_F_DRESP] = ST_F_ECON,
[ST_F_EREQ] = 0,
[ST_F_ECON] = ST_F_ERESP,
[ST_F_ERESP] = ST_F_WRETR,
[ST_F_WRETR] = ST_F_WREDIS,
[ST_F_WREDIS] = ST_F_WREW,
[ST_F_STATUS] = ST_F_SCUR,
[ST_F_WEIGHT] = ST_F_ACT,
[ST_F_ACT] = ST_F_BCK,
[ST_F_BCK] = ST_F_CHKDOWN,
[ST_F_CHKFAIL] = 0,
[ST_F_CHKDOWN] = ST_F_LASTCHG,
[ST_F_LASTCHG] = ST_F_DOWNTIME,
[ST_F_DOWNTIME] = ST_F_LBTOT,
[ST_F_QLIMIT] = 0,
[ST_F_PID] = 0,
[ST_F_IID] = 0,
[ST_F_SID] = 0,
[ST_F_THROTTLE] = 0,
[ST_F_LBTOT] = ST_F_REQ_TOT,
[ST_F_TRACKED] = 9,
[ST_F_TYPE] = 0,
[ST_F_RATE] = 0,
[ST_F_RATE_LIM] = 0,
[ST_F_RATE_MAX] = ST_F_LASTSESS,
[ST_F_CHECK_STATUS] = 0,
[ST_F_CHECK_CODE] = 0,
[ST_F_CHECK_DURATION] = 0,
[ST_F_HRSP_1XX] = ST_F_HRSP_2XX,
[ST_F_HRSP_2XX] = ST_F_HRSP_3XX,
[ST_F_HRSP_3XX] = ST_F_HRSP_4XX,
[ST_F_HRSP_4XX] = ST_F_HRSP_5XX,
[ST_F_HRSP_5XX] = ST_F_HRSP_OTHER,
[ST_F_HRSP_OTHER] = ST_F_CACHE_LOOKUPS,
[ST_F_HANAFAIL] = 0,
[ST_F_REQ_RATE] = 0,
[ST_F_REQ_RATE_MAX] = 0,
[ST_F_REQ_TOT] = ST_F_HRSP_1XX,
[ST_F_CLI_ABRT] = ST_F_SRV_ABRT,
[ST_F_SRV_ABRT] = ST_F_WEIGHT,
[ST_F_COMP_IN] = ST_F_COMP_OUT,
[ST_F_COMP_OUT] = ST_F_COMP_BYP,
[ST_F_COMP_BYP] = ST_F_COMP_RSP,
[ST_F_COMP_RSP] = 0,
[ST_F_LASTSESS] = ST_F_QCUR,
[ST_F_LAST_CHK] = 0,
[ST_F_LAST_AGT] = 0,
[ST_F_QTIME] = ST_F_CTIME,
[ST_F_CTIME] = ST_F_RTIME,
[ST_F_RTIME] = ST_F_TTIME,
[ST_F_TTIME] = ST_F_QT_MAX,
[ST_F_AGENT_STATUS] = 0,
[ST_F_AGENT_CODE] = 0,
[ST_F_AGENT_DURATION] = 0,
[ST_F_CHECK_DESC] = 0,
[ST_F_AGENT_DESC] = 0,
[ST_F_CHECK_RISE] = 0,
[ST_F_CHECK_FALL] = 0,
[ST_F_CHECK_HEALTH] = 0,
[ST_F_AGENT_RISE] = 0,
[ST_F_AGENT_FALL] = 0,
[ST_F_AGENT_HEALTH] = 0,
[ST_F_ADDR] = 0,
[ST_F_COOKIE] = 0,
[ST_F_MODE] = 0,
[ST_F_ALGO] = 0,
[ST_F_CONN_RATE] = 0,
[ST_F_CONN_RATE_MAX] = 0,
[ST_F_CONN_TOT] = 0,
[ST_F_INTERCEPTED] = 0,
[ST_F_DCON] = 0,
[ST_F_DSES] = 0,
[ST_F_WREW] = ST_F_EINT,
[ST_F_CONNECT] = ST_F_REUSE,
[ST_F_REUSE] = ST_F_BIN,
[ST_F_CACHE_LOOKUPS] = ST_F_CACHE_HITS,
[ST_F_CACHE_HITS] = ST_F_COMP_IN,
[ST_F_SRV_ICUR] = 0,
[ST_F_SRV_ILIM] = 0,
[ST_F_QT_MAX] = ST_F_CT_MAX,
[ST_F_CT_MAX] = ST_F_RT_MAX,
[ST_F_RT_MAX] = ST_F_TT_MAX,
[ST_F_TT_MAX] = ST_F_DREQ,
[ST_F_EINT] = ST_F_CLI_ABRT,
[ST_F_IDLE_CONN_CUR] = 0,
[ST_F_SAFE_CONN_CUR] = 0,
[ST_F_USED_CONN_CUR] = 0,
[ST_F_NEED_CONN_EST] = 0,
};
/* Matrix used to dump server metrics. Each metric points to the next one to be
* processed or 0 to stop the dump. */
const int promex_srv_metrics[ST_F_TOTAL_FIELDS] = {
[ST_F_PXNAME] = ST_F_STATUS,
[ST_F_SVNAME] = 0,
[ST_F_QCUR] = ST_F_QMAX,
[ST_F_QMAX] = ST_F_QLIMIT,
[ST_F_SCUR] = ST_F_SMAX,
[ST_F_SMAX] = ST_F_SLIM,
[ST_F_SLIM] = ST_F_STOT,
[ST_F_STOT] = ST_F_RATE_MAX,
[ST_F_BIN] = ST_F_BOUT,
[ST_F_BOUT] = ST_F_QTIME,
[ST_F_DREQ] = 0,
[ST_F_DRESP] = ST_F_ECON,
[ST_F_EREQ] = 0,
[ST_F_ECON] = ST_F_ERESP,
[ST_F_ERESP] = ST_F_WRETR,
[ST_F_WRETR] = ST_F_WREDIS,
[ST_F_WREDIS] = ST_F_WREW,
[ST_F_STATUS] = ST_F_SCUR,
[ST_F_WEIGHT] = ST_F_CHECK_STATUS,
[ST_F_ACT] = 0,
[ST_F_BCK] = 0,
[ST_F_CHKFAIL] = ST_F_CHKDOWN,
[ST_F_CHKDOWN] = ST_F_DOWNTIME,
[ST_F_LASTCHG] = ST_F_THROTTLE,
[ST_F_DOWNTIME] = ST_F_LASTCHG,
[ST_F_QLIMIT] = ST_F_BIN,
[ST_F_PID] = 0,
[ST_F_IID] = 0,
[ST_F_SID] = 0,
[ST_F_THROTTLE] = ST_F_LBTOT,
[ST_F_LBTOT] = ST_F_HRSP_1XX,
[ST_F_TRACKED] = 0,
[ST_F_TYPE] = 0,
[ST_F_RATE] = 0,
[ST_F_RATE_LIM] = 0,
[ST_F_RATE_MAX] = ST_F_LASTSESS,
[ST_F_CHECK_STATUS] = ST_F_CHECK_CODE,
[ST_F_CHECK_CODE] = ST_F_CHECK_DURATION,
[ST_F_CHECK_DURATION] = ST_F_CHKFAIL,
[ST_F_HRSP_1XX] = ST_F_HRSP_2XX,
[ST_F_HRSP_2XX] = ST_F_HRSP_3XX,
[ST_F_HRSP_3XX] = ST_F_HRSP_4XX,
[ST_F_HRSP_4XX] = ST_F_HRSP_5XX,
[ST_F_HRSP_5XX] = ST_F_HRSP_OTHER,
[ST_F_HRSP_OTHER] = ST_F_SRV_ICUR,
[ST_F_HANAFAIL] = 0,
[ST_F_REQ_RATE] = 0,
[ST_F_REQ_RATE_MAX] = 0,
[ST_F_REQ_TOT] = 0,
[ST_F_CLI_ABRT] = ST_F_SRV_ABRT,
[ST_F_SRV_ABRT] = ST_F_WEIGHT,
[ST_F_COMP_IN] = 0,
[ST_F_COMP_OUT] = 0,
[ST_F_COMP_BYP] = 0,
[ST_F_COMP_RSP] = 0,
[ST_F_LASTSESS] = ST_F_QCUR,
[ST_F_LAST_CHK] = 0,
[ST_F_LAST_AGT] = 0,
[ST_F_QTIME] = ST_F_CTIME,
[ST_F_CTIME] = ST_F_RTIME,
[ST_F_RTIME] = ST_F_TTIME,
[ST_F_TTIME] = ST_F_QT_MAX,
[ST_F_AGENT_STATUS] = 0,
[ST_F_AGENT_CODE] = 0,
[ST_F_AGENT_DURATION] = 0,
[ST_F_CHECK_DESC] = 0,
[ST_F_AGENT_DESC] = 0,
[ST_F_CHECK_RISE] = 0,
[ST_F_CHECK_FALL] = 0,
[ST_F_CHECK_HEALTH] = 0,
[ST_F_AGENT_RISE] = 0,
[ST_F_AGENT_FALL] = 0,
[ST_F_AGENT_HEALTH] = 0,
[ST_F_ADDR] = 0,
[ST_F_COOKIE] = 0,
[ST_F_MODE] = 0,
[ST_F_ALGO] = 0,
[ST_F_CONN_RATE] = 0,
[ST_F_CONN_RATE_MAX] = 0,
[ST_F_CONN_TOT] = 0,
[ST_F_INTERCEPTED] = 0,
[ST_F_DCON] = 0,
[ST_F_DSES] = 0,
[ST_F_WREW] = ST_F_EINT,
[ST_F_CONNECT] = ST_F_REUSE,
[ST_F_REUSE] = ST_F_DRESP,
[ST_F_CACHE_LOOKUPS] = 0,
[ST_F_CACHE_HITS] = 0,
[ST_F_SRV_ICUR] = ST_F_SRV_ILIM,
[ST_F_SRV_ILIM] = ST_F_IDLE_CONN_CUR,
[ST_F_QT_MAX] = ST_F_CT_MAX,
[ST_F_CT_MAX] = ST_F_RT_MAX,
[ST_F_RT_MAX] = ST_F_TT_MAX,
[ST_F_TT_MAX] = ST_F_CONNECT,
[ST_F_EINT] = ST_F_CLI_ABRT,
[ST_F_IDLE_CONN_CUR] = ST_F_SAFE_CONN_CUR,
[ST_F_SAFE_CONN_CUR] = ST_F_USED_CONN_CUR,
[ST_F_USED_CONN_CUR] = ST_F_NEED_CONN_EST,
[ST_F_NEED_CONN_EST] = 0,
};
/* Name of all info fields */
const struct ist promex_inf_metric_names[INF_TOTAL_FIELDS] = {
[INF_NAME] = IST("name"),
[INF_VERSION] = IST("version"),
[INF_RELEASE_DATE] = IST("release_date"),
[INF_NBTHREAD] = IST("nbthread"),
[INF_NBPROC] = IST("nbproc"),
[INF_PROCESS_NUM] = IST("relative_process_id"),
[INF_PID] = IST("pid"),
[INF_UPTIME] = IST("uptime"),
[INF_UPTIME_SEC] = IST("start_time_seconds"),
[INF_MEMMAX_MB] = IST("max_memory_bytes"),
[INF_POOL_ALLOC_MB] = IST("pool_allocated_bytes"),
[INF_POOL_USED_MB] = IST("pool_used_bytes"),
[INF_POOL_FAILED] = IST("pool_failures_total"),
[INF_ULIMIT_N] = IST("max_fds"),
[INF_MAXSOCK] = IST("max_sockets"),
[INF_MAXCONN] = IST("max_connections"),
[INF_HARD_MAXCONN] = IST("hard_max_connections"),
[INF_CURR_CONN] = IST("current_connections"),
[INF_CUM_CONN] = IST("connections_total"),
[INF_CUM_REQ] = IST("requests_total"),
[INF_MAX_SSL_CONNS] = IST("max_ssl_connections"),
[INF_CURR_SSL_CONNS] = IST("current_ssl_connections"),
[INF_CUM_SSL_CONNS] = IST("ssl_connections_total"),
[INF_MAXPIPES] = IST("max_pipes"),
[INF_PIPES_USED] = IST("pipes_used_total"),
[INF_PIPES_FREE] = IST("pipes_free_total"),
[INF_CONN_RATE] = IST("current_connection_rate"),
[INF_CONN_RATE_LIMIT] = IST("limit_connection_rate"),
[INF_MAX_CONN_RATE] = IST("max_connection_rate"),
[INF_SESS_RATE] = IST("current_session_rate"),
[INF_SESS_RATE_LIMIT] = IST("limit_session_rate"),
[INF_MAX_SESS_RATE] = IST("max_session_rate"),
[INF_SSL_RATE] = IST("current_ssl_rate"),
[INF_SSL_RATE_LIMIT] = IST("limit_ssl_rate"),
[INF_MAX_SSL_RATE] = IST("max_ssl_rate"),
[INF_SSL_FRONTEND_KEY_RATE] = IST("current_frontend_ssl_key_rate"),
[INF_SSL_FRONTEND_MAX_KEY_RATE] = IST("max_frontend_ssl_key_rate"),
[INF_SSL_FRONTEND_SESSION_REUSE_PCT] = IST("frontend_ssl_reuse"),
[INF_SSL_BACKEND_KEY_RATE] = IST("current_backend_ssl_key_rate"),
[INF_SSL_BACKEND_MAX_KEY_RATE] = IST("max_backend_ssl_key_rate"),
[INF_SSL_CACHE_LOOKUPS] = IST("ssl_cache_lookups_total"),
[INF_SSL_CACHE_MISSES] = IST("ssl_cache_misses_total"),
[INF_COMPRESS_BPS_IN] = IST("http_comp_bytes_in_total"),
[INF_COMPRESS_BPS_OUT] = IST("http_comp_bytes_out_total"),
[INF_COMPRESS_BPS_RATE_LIM] = IST("limit_http_comp"),
[INF_ZLIB_MEM_USAGE] = IST("current_zlib_memory"),
[INF_MAX_ZLIB_MEM_USAGE] = IST("max_zlib_memory"),
[INF_TASKS] = IST("current_tasks"),
[INF_RUN_QUEUE] = IST("current_run_queue"),
[INF_IDLE_PCT] = IST("idle_time_percent"),
[INF_NODE] = IST("node"),
[INF_DESCRIPTION] = IST("description"),
[INF_STOPPING] = IST("stopping"),
[INF_JOBS] = IST("jobs"),
[INF_UNSTOPPABLE_JOBS] = IST("unstoppable_jobs"),
[INF_LISTENERS] = IST("listeners"),
[INF_ACTIVE_PEERS] = IST("active_peers"),
[INF_CONNECTED_PEERS] = IST("connected_peers"),
[INF_DROPPED_LOGS] = IST("dropped_logs_total"),
[INF_BUSY_POLLING] = IST("busy_polling_enabled"),
[INF_FAILED_RESOLUTIONS] = IST("failed_resolutions"),
[INF_TOTAL_BYTES_OUT] = IST("bytes_out_total"),
[INF_TOTAL_SPLICED_BYTES_OUT] = IST("spliced_bytes_out_total"),
[INF_BYTES_OUT_RATE] = IST("bytes_out_rate"),
[INF_DEBUG_COMMANDS_ISSUED] = IST("debug_commands_issued"),
};
/* Name of all stats fields */
const struct ist promex_st_metric_names[ST_F_TOTAL_FIELDS] = {
[ST_F_PXNAME] = IST("proxy_name"),
[ST_F_SVNAME] = IST("service_name"),
[ST_F_QCUR] = IST("current_queue"),
[ST_F_QMAX] = IST("max_queue"),
[ST_F_SCUR] = IST("current_sessions"),
[ST_F_SMAX] = IST("max_sessions"),
[ST_F_SLIM] = IST("limit_sessions"),
[ST_F_STOT] = IST("sessions_total"),
[ST_F_BIN] = IST("bytes_in_total"),
[ST_F_BOUT] = IST("bytes_out_total"),
[ST_F_DREQ] = IST("requests_denied_total"),
[ST_F_DRESP] = IST("responses_denied_total"),
[ST_F_EREQ] = IST("request_errors_total"),
[ST_F_ECON] = IST("connection_errors_total"),
[ST_F_ERESP] = IST("response_errors_total"),
[ST_F_WRETR] = IST("retry_warnings_total"),
[ST_F_WREDIS] = IST("redispatch_warnings_total"),
[ST_F_STATUS] = IST("status"),
[ST_F_WEIGHT] = IST("weight"),
[ST_F_ACT] = IST("active_servers"),
[ST_F_BCK] = IST("backup_servers"),
[ST_F_CHKFAIL] = IST("check_failures_total"),
[ST_F_CHKDOWN] = IST("check_up_down_total"),
[ST_F_LASTCHG] = IST("check_last_change_seconds"),
[ST_F_DOWNTIME] = IST("downtime_seconds_total"),
[ST_F_QLIMIT] = IST("queue_limit"),
[ST_F_PID] = IST("pid"),
[ST_F_IID] = IST("proxy_id"),
[ST_F_SID] = IST("server_id"),
[ST_F_THROTTLE] = IST("current_throttle"),
[ST_F_LBTOT] = IST("loadbalanced_total"),
[ST_F_TRACKED] = IST("tracked"),
[ST_F_TYPE] = IST("type"),
[ST_F_RATE] = IST("current_session_rate"),
[ST_F_RATE_LIM] = IST("limit_session_rate"),
[ST_F_RATE_MAX] = IST("max_session_rate"),
[ST_F_CHECK_STATUS] = IST("check_status"),
[ST_F_CHECK_CODE] = IST("check_code"),
[ST_F_CHECK_DURATION] = IST("check_duration_seconds"),
[ST_F_HRSP_1XX] = IST("http_responses_total"),
[ST_F_HRSP_2XX] = IST("http_responses_total"),
[ST_F_HRSP_3XX] = IST("http_responses_total"),
[ST_F_HRSP_4XX] = IST("http_responses_total"),
[ST_F_HRSP_5XX] = IST("http_responses_total"),
[ST_F_HRSP_OTHER] = IST("http_responses_total"),
[ST_F_HANAFAIL] = IST("check_analyses_failures_total"),
[ST_F_REQ_RATE] = IST("http_requests_rate_current"),
[ST_F_REQ_RATE_MAX] = IST("http_requests_rate_max"),
[ST_F_REQ_TOT] = IST("http_requests_total"),
[ST_F_CLI_ABRT] = IST("client_aborts_total"),
[ST_F_SRV_ABRT] = IST("server_aborts_total"),
[ST_F_COMP_IN] = IST("http_comp_bytes_in_total"),
[ST_F_COMP_OUT] = IST("http_comp_bytes_out_total"),
[ST_F_COMP_BYP] = IST("http_comp_bytes_bypassed_total"),
[ST_F_COMP_RSP] = IST("http_comp_responses_total"),
[ST_F_LASTSESS] = IST("last_session_seconds"),
[ST_F_LAST_CHK] = IST("check_last_content"),
[ST_F_LAST_AGT] = IST("agentcheck_last_content"),
[ST_F_QTIME] = IST("queue_time_average_seconds"),
[ST_F_CTIME] = IST("connect_time_average_seconds"),
[ST_F_RTIME] = IST("response_time_average_seconds"),
[ST_F_TTIME] = IST("total_time_average_seconds"),
[ST_F_AGENT_STATUS] = IST("agentcheck_status"),
[ST_F_AGENT_CODE] = IST("agentcheck_code"),
[ST_F_AGENT_DURATION] = IST("agentcheck_duration_milliseconds"),
[ST_F_CHECK_DESC] = IST("check_description"),
[ST_F_AGENT_DESC] = IST("agentcheck_description"),
[ST_F_CHECK_RISE] = IST("check_rise"),
[ST_F_CHECK_FALL] = IST("check_fall"),
[ST_F_CHECK_HEALTH] = IST("check_value"),
[ST_F_AGENT_RISE] = IST("agentcheck_rise"),
[ST_F_AGENT_FALL] = IST("agentcheck_fall"),
[ST_F_AGENT_HEALTH] = IST("agentcheck_value"),
[ST_F_ADDR] = IST("address"),
[ST_F_COOKIE] = IST("cookie"),
[ST_F_MODE] = IST("mode"),
[ST_F_ALGO] = IST("loadbalance_algorithm"),
[ST_F_CONN_RATE] = IST("connections_rate_current"),
[ST_F_CONN_RATE_MAX] = IST("connections_rate_max"),
[ST_F_CONN_TOT] = IST("connections_total"),
[ST_F_INTERCEPTED] = IST("intercepted_requests_total"),
[ST_F_DCON] = IST("denied_connections_total"),
[ST_F_DSES] = IST("denied_sessions_total"),
[ST_F_WREW] = IST("failed_header_rewriting_total"),
[ST_F_CONNECT] = IST("connection_attempts_total"),
[ST_F_REUSE] = IST("connection_reuses_total"),
[ST_F_CACHE_LOOKUPS] = IST("http_cache_lookups_total"),
[ST_F_CACHE_HITS] = IST("http_cache_hits_total"),
[ST_F_SRV_ICUR] = IST("idle_connections_current"),
[ST_F_SRV_ILIM] = IST("idle_connections_limit"),
[ST_F_QT_MAX] = IST("max_queue_time_seconds"),
[ST_F_CT_MAX] = IST("max_connect_time_seconds"),
[ST_F_RT_MAX] = IST("max_response_time_seconds"),
[ST_F_TT_MAX] = IST("max_total_time_seconds"),
[ST_F_EINT] = IST("internal_errors_total"),
[ST_F_IDLE_CONN_CUR] = IST("unsafe_idle_connections_current"),
[ST_F_SAFE_CONN_CUR] = IST("safe_idle_connections_current"),
[ST_F_USED_CONN_CUR] = IST("used_connections_current"),
[ST_F_NEED_CONN_EST] = IST("need_connections_current"),
};
/* Description of all info fields */
const struct ist promex_inf_metric_desc[INF_TOTAL_FIELDS] = {
[INF_NAME] = IST("Product name."),
[INF_VERSION] = IST("HAProxy version."),
[INF_RELEASE_DATE] = IST("HAProxy release date."),
[INF_NBTHREAD] = IST("Configured number of threads."),
[INF_NBPROC] = IST("Configured number of processes."),
[INF_PROCESS_NUM] = IST("Relative process id, starting at 1."),
[INF_PID] = IST("HAProxy PID."),
[INF_UPTIME] = IST("Uptime in a human readable format."),
[INF_UPTIME_SEC] = IST("Start time in seconds."),
[INF_MEMMAX_MB] = IST("Per-process memory limit (in bytes); 0=unset."),
[INF_POOL_ALLOC_MB] = IST("Total amount of memory allocated in pools (in bytes)."),
[INF_POOL_USED_MB] = IST("Total amount of memory used in pools (in bytes)."),
[INF_POOL_FAILED] = IST("Total number of failed pool allocations."),
[INF_ULIMIT_N] = IST("Maximum number of open file descriptors; 0=unset."),
[INF_MAXSOCK] = IST("Maximum number of open sockets."),
[INF_MAXCONN] = IST("Maximum number of concurrent connections."),
[INF_HARD_MAXCONN] = IST("Initial Maximum number of concurrent connections."),
[INF_CURR_CONN] = IST("Number of active sessions."),
[INF_CUM_CONN] = IST("Total number of created sessions."),
[INF_CUM_REQ] = IST("Total number of requests (TCP or HTTP)."),
[INF_MAX_SSL_CONNS] = IST("Configured maximum number of concurrent SSL connections."),
[INF_CURR_SSL_CONNS] = IST("Number of opened SSL connections."),
[INF_CUM_SSL_CONNS] = IST("Total number of opened SSL connections."),
[INF_MAXPIPES] = IST("Configured maximum number of pipes."),
[INF_PIPES_USED] = IST("Number of pipes in used."),
[INF_PIPES_FREE] = IST("Number of pipes unused."),
[INF_CONN_RATE] = IST("Current number of connections per second over last elapsed second."),
[INF_CONN_RATE_LIMIT] = IST("Configured maximum number of connections per second."),
[INF_MAX_CONN_RATE] = IST("Maximum observed number of connections per second."),
[INF_SESS_RATE] = IST("Current number of sessions per second over last elapsed second."),
[INF_SESS_RATE_LIMIT] = IST("Configured maximum number of sessions per second."),
[INF_MAX_SESS_RATE] = IST("Maximum observed number of sessions per second."),
[INF_SSL_RATE] = IST("Current number of SSL sessions per second over last elapsed second."),
[INF_SSL_RATE_LIMIT] = IST("Configured maximum number of SSL sessions per second."),
[INF_MAX_SSL_RATE] = IST("Maximum observed number of SSL sessions per second."),
[INF_SSL_FRONTEND_KEY_RATE] = IST("Current frontend SSL Key computation per second over last elapsed second."),
[INF_SSL_FRONTEND_MAX_KEY_RATE] = IST("Maximum observed frontend SSL Key computation per second."),
[INF_SSL_FRONTEND_SESSION_REUSE_PCT] = IST("SSL session reuse ratio (percent)."),
[INF_SSL_BACKEND_KEY_RATE] = IST("Current backend SSL Key computation per second over last elapsed second."),
[INF_SSL_BACKEND_MAX_KEY_RATE] = IST("Maximum observed backend SSL Key computation per second."),
[INF_SSL_CACHE_LOOKUPS] = IST("Total number of SSL session cache lookups."),
[INF_SSL_CACHE_MISSES] = IST("Total number of SSL session cache misses."),
[INF_COMPRESS_BPS_IN] = IST("Number of bytes per second over last elapsed second, before http compression."),
[INF_COMPRESS_BPS_OUT] = IST("Number of bytes per second over last elapsed second, after http compression."),
[INF_COMPRESS_BPS_RATE_LIM] = IST("Configured maximum input compression rate in bytes."),
[INF_ZLIB_MEM_USAGE] = IST("Current memory used for zlib in bytes."),
[INF_MAX_ZLIB_MEM_USAGE] = IST("Configured maximum amount of memory for zlib in bytes."),
[INF_TASKS] = IST("Current number of tasks."),
[INF_RUN_QUEUE] = IST("Current number of tasks in the run-queue."),
[INF_IDLE_PCT] = IST("Idle to total ratio over last sample (percent)."),
[INF_NODE] = IST("Node name."),
[INF_DESCRIPTION] = IST("Node description."),
[INF_STOPPING] = IST("Non zero means stopping in progress."),
[INF_JOBS] = IST("Current number of active jobs (listeners, sessions, open devices)."),
[INF_UNSTOPPABLE_JOBS] = IST("Current number of active jobs that can't be stopped during a soft stop."),
[INF_LISTENERS] = IST("Current number of active listeners."),
[INF_ACTIVE_PEERS] = IST("Current number of active peers."),
[INF_CONNECTED_PEERS] = IST("Current number of connected peers."),
[INF_DROPPED_LOGS] = IST("Total number of dropped logs."),
[INF_BUSY_POLLING] = IST("Non zero if the busy polling is enabled."),
[INF_FAILED_RESOLUTIONS] = IST("Total number of failed DNS resolutions."),
[INF_TOTAL_BYTES_OUT] = IST("Total number of bytes emitted."),
[INF_TOTAL_SPLICED_BYTES_OUT] = IST("Total number of bytes emitted through a kernel pipe."),
[INF_BYTES_OUT_RATE] = IST("Number of bytes emitted over the last elapsed second."),
[INF_DEBUG_COMMANDS_ISSUED] = IST("Number of debug commands issued on this process (anything > 0 is unsafe)."),
};
/* Description of all stats fields */
const struct ist promex_st_metric_desc[ST_F_TOTAL_FIELDS] = {
[ST_F_PXNAME] = IST("The proxy name."),
[ST_F_SVNAME] = IST("The service name (FRONTEND for frontend, BACKEND for backend, any name for server/listener)."),
[ST_F_QCUR] = IST("Current number of queued requests."),
[ST_F_QMAX] = IST("Maximum observed number of queued requests."),
[ST_F_SCUR] = IST("Current number of active sessions."),
[ST_F_SMAX] = IST("Maximum observed number of active sessions."),
[ST_F_SLIM] = IST("Configured session limit."),
[ST_F_STOT] = IST("Total number of sessions."),
[ST_F_BIN] = IST("Current total of incoming bytes."),
[ST_F_BOUT] = IST("Current total of outgoing bytes."),
[ST_F_DREQ] = IST("Total number of denied requests."),
[ST_F_DRESP] = IST("Total number of denied responses."),
[ST_F_EREQ] = IST("Total number of request errors."),
[ST_F_ECON] = IST("Total number of connection errors."),
[ST_F_ERESP] = IST("Total number of response errors."),
[ST_F_WRETR] = IST("Total number of retry warnings."),
[ST_F_WREDIS] = IST("Total number of redispatch warnings."),
[ST_F_STATUS] = IST("Current status of the service (frontend: 0=STOP, 1=UP - backend: 0=DOWN, 1=UP - server: 0=DOWN, 1=UP, 2=MAINT, 3=DRAIN, 4=NOLB)."),
[ST_F_WEIGHT] = IST("Service weight."),
[ST_F_ACT] = IST("Current number of active servers."),
[ST_F_BCK] = IST("Current number of backup servers."),
[ST_F_CHKFAIL] = IST("Total number of failed check (Only counts checks failed when the server is up)."),
[ST_F_CHKDOWN] = IST("Total number of UP->DOWN transitions."),
[ST_F_LASTCHG] = IST("Number of seconds since the last UP<->DOWN transition."),
[ST_F_DOWNTIME] = IST("Total downtime (in seconds) for the service."),
[ST_F_QLIMIT] = IST("Configured maxqueue for the server (0 meaning no limit)."),
[ST_F_PID] = IST("Process id (0 for first instance, 1 for second, ...)"),
[ST_F_IID] = IST("Unique proxy id."),
[ST_F_SID] = IST("Server id (unique inside a proxy)."),
[ST_F_THROTTLE] = IST("Current throttle percentage for the server, when slowstart is active, or no value if not in slowstart."),
[ST_F_LBTOT] = IST("Total number of times a service was selected, either for new sessions, or when redispatching."),
[ST_F_TRACKED] = IST("Id of proxy/server if tracking is enabled."),
[ST_F_TYPE] = IST("Service type (0=frontend, 1=backend, 2=server, 3=socket/listener)."),
[ST_F_RATE] = IST("Current number of sessions per second over last elapsed second."),
[ST_F_RATE_LIM] = IST("Configured limit on new sessions per second."),
[ST_F_RATE_MAX] = IST("Maximum observed number of sessions per second."),
[ST_F_CHECK_STATUS] = IST("Status of last health check (HCHK_STATUS_* values)."),
[ST_F_CHECK_CODE] = IST("layer5-7 code, if available of the last health check."),
[ST_F_CHECK_DURATION] = IST("Total duration of the latest server health check, in seconds."),
[ST_F_HRSP_1XX] = IST("Total number of HTTP responses."),
[ST_F_HRSP_2XX] = IST("Total number of HTTP responses."),
[ST_F_HRSP_3XX] = IST("Total number of HTTP responses."),
[ST_F_HRSP_4XX] = IST("Total number of HTTP responses."),
[ST_F_HRSP_5XX] = IST("Total number of HTTP responses."),
[ST_F_HRSP_OTHER] = IST("Total number of HTTP responses."),
[ST_F_HANAFAIL] = IST("Total number of failed health checks."),
[ST_F_REQ_RATE] = IST("Current number of HTTP requests per second over last elapsed second."),
[ST_F_REQ_RATE_MAX] = IST("Maximum observed number of HTTP requests per second."),
[ST_F_REQ_TOT] = IST("Total number of HTTP requests received."),
[ST_F_CLI_ABRT] = IST("Total number of data transfers aborted by the client."),
[ST_F_SRV_ABRT] = IST("Total number of data transfers aborted by the server."),
[ST_F_COMP_IN] = IST("Total number of HTTP response bytes fed to the compressor."),
[ST_F_COMP_OUT] = IST("Total number of HTTP response bytes emitted by the compressor."),
[ST_F_COMP_BYP] = IST("Total number of bytes that bypassed the HTTP compressor (CPU/BW limit)."),
[ST_F_COMP_RSP] = IST("Total number of HTTP responses that were compressed."),
[ST_F_LASTSESS] = IST("Number of seconds since last session assigned to server/backend."),
[ST_F_LAST_CHK] = IST("Last health check contents or textual error"),
[ST_F_LAST_AGT] = IST("Last agent check contents or textual error"),
[ST_F_QTIME] = IST("Avg. queue time for last 1024 successful connections."),
[ST_F_CTIME] = IST("Avg. connect time for last 1024 successful connections."),
[ST_F_RTIME] = IST("Avg. response time for last 1024 successful connections."),
[ST_F_TTIME] = IST("Avg. total time for last 1024 successful connections."),
[ST_F_AGENT_STATUS] = IST("Status of last agent check."),
[ST_F_AGENT_CODE] = IST("Numeric code reported by agent if any (unused for now)."),
[ST_F_AGENT_DURATION] = IST("Time in ms taken to finish last agent check."),
[ST_F_CHECK_DESC] = IST("Short human-readable description of the last health status."),
[ST_F_AGENT_DESC] = IST("Short human-readable description of the last agent status."),
[ST_F_CHECK_RISE] = IST("Server's \"rise\" parameter used by health checks"),
[ST_F_CHECK_FALL] = IST("Server's \"fall\" parameter used by health checks"),
[ST_F_CHECK_HEALTH] = IST("Server's health check value between 0 and rise+fall-1"),
[ST_F_AGENT_RISE] = IST("Agent's \"rise\" parameter, normally 1."),
[ST_F_AGENT_FALL] = IST("Agent's \"fall\" parameter, normally 1."),
[ST_F_AGENT_HEALTH] = IST("Agent's health parameter, between 0 and rise+fall-1"),
[ST_F_ADDR] = IST("address:port or \"unix\". IPv6 has brackets around the address."),
[ST_F_COOKIE] = IST("Server's cookie value or backend's cookie name."),
[ST_F_MODE] = IST("Proxy mode (tcp, http, health, unknown)."),
[ST_F_ALGO] = IST("Load balancing algorithm."),
[ST_F_CONN_RATE] = IST("Current number of connections per second over the last elapsed second."),
[ST_F_CONN_RATE_MAX] = IST("Maximum observed number of connections per second."),
[ST_F_CONN_TOT] = IST("Total number of connections."),
[ST_F_INTERCEPTED] = IST("Total number of intercepted HTTP requests."),
[ST_F_DCON] = IST("Total number of requests denied by \"tcp-request connection\" rules."),
[ST_F_DSES] = IST("Total number of requests denied by \"tcp-request session\" rules."),
[ST_F_WREW] = IST("Total number of failed header rewriting warnings."),
[ST_F_CONNECT] = IST("Total number of connection establishment attempts."),
[ST_F_REUSE] = IST("Total number of connection reuses."),
[ST_F_CACHE_LOOKUPS] = IST("Total number of HTTP cache lookups."),
[ST_F_CACHE_HITS] = IST("Total number of HTTP cache hits."),
[ST_F_SRV_ICUR] = IST("Current number of idle connections available for reuse"),
[ST_F_SRV_ILIM] = IST("Limit on the number of available idle connections"),
[ST_F_QT_MAX] = IST("Maximum observed time spent in the queue"),
[ST_F_CT_MAX] = IST("Maximum observed time spent waiting for a connection to complete"),
[ST_F_RT_MAX] = IST("Maximum observed time spent waiting for a server response"),
[ST_F_TT_MAX] = IST("Maximum observed total request+response time (request+queue+connect+response+processing)"),
[ST_F_EINT] = IST("Total number of internal errors."),
[ST_F_IDLE_CONN_CUR] = IST("Current number of unsafe idle connections."),
[ST_F_SAFE_CONN_CUR] = IST("Current number of safe idle connections."),
[ST_F_USED_CONN_CUR] = IST("Current number of connections in use."),
[ST_F_NEED_CONN_EST] = IST("Estimated needed number of connections."),
};
/* Specific labels for all info fields. Empty by default. */
const struct ist promex_inf_metric_labels[INF_TOTAL_FIELDS] = {
[INF_NAME] = IST(""),
[INF_VERSION] = IST(""),
[INF_RELEASE_DATE] = IST(""),
[INF_NBTHREAD] = IST(""),
[INF_NBPROC] = IST(""),
[INF_PROCESS_NUM] = IST(""),
[INF_PID] = IST(""),
[INF_UPTIME] = IST(""),
[INF_UPTIME_SEC] = IST(""),
[INF_MEMMAX_MB] = IST(""),
[INF_POOL_ALLOC_MB] = IST(""),
[INF_POOL_USED_MB] = IST(""),
[INF_POOL_FAILED] = IST(""),
[INF_ULIMIT_N] = IST(""),
[INF_MAXSOCK] = IST(""),
[INF_MAXCONN] = IST(""),
[INF_HARD_MAXCONN] = IST(""),
[INF_CURR_CONN] = IST(""),
[INF_CUM_CONN] = IST(""),
[INF_CUM_REQ] = IST(""),
[INF_MAX_SSL_CONNS] = IST(""),
[INF_CURR_SSL_CONNS] = IST(""),
[INF_CUM_SSL_CONNS] = IST(""),
[INF_MAXPIPES] = IST(""),
[INF_PIPES_USED] = IST(""),
[INF_PIPES_FREE] = IST(""),
[INF_CONN_RATE] = IST(""),
[INF_CONN_RATE_LIMIT] = IST(""),
[INF_MAX_CONN_RATE] = IST(""),
[INF_SESS_RATE] = IST(""),
[INF_SESS_RATE_LIMIT] = IST(""),
[INF_MAX_SESS_RATE] = IST(""),
[INF_SSL_RATE] = IST(""),
[INF_SSL_RATE_LIMIT] = IST(""),
[INF_MAX_SSL_RATE] = IST(""),
[INF_SSL_FRONTEND_KEY_RATE] = IST(""),
[INF_SSL_FRONTEND_MAX_KEY_RATE] = IST(""),
[INF_SSL_FRONTEND_SESSION_REUSE_PCT] = IST(""),
[INF_SSL_BACKEND_KEY_RATE] = IST(""),
[INF_SSL_BACKEND_MAX_KEY_RATE] = IST(""),
[INF_SSL_CACHE_LOOKUPS] = IST(""),
[INF_SSL_CACHE_MISSES] = IST(""),
[INF_COMPRESS_BPS_IN] = IST(""),
[INF_COMPRESS_BPS_OUT] = IST(""),
[INF_COMPRESS_BPS_RATE_LIM] = IST(""),
[INF_ZLIB_MEM_USAGE] = IST(""),
[INF_MAX_ZLIB_MEM_USAGE] = IST(""),
[INF_TASKS] = IST(""),
[INF_RUN_QUEUE] = IST(""),
[INF_IDLE_PCT] = IST(""),
[INF_NODE] = IST(""),
[INF_DESCRIPTION] = IST(""),
[INF_STOPPING] = IST(""),
[INF_JOBS] = IST(""),
[INF_UNSTOPPABLE_JOBS] = IST(""),
[INF_LISTENERS] = IST(""),
[INF_ACTIVE_PEERS] = IST(""),
[INF_CONNECTED_PEERS] = IST(""),
[INF_DROPPED_LOGS] = IST(""),
[INF_BUSY_POLLING] = IST(""),
[INF_FAILED_RESOLUTIONS] = IST(""),
[INF_TOTAL_BYTES_OUT] = IST(""),
[INF_TOTAL_SPLICED_BYTES_OUT] = IST(""),
[INF_BYTES_OUT_RATE] = IST(""),
[INF_DEBUG_COMMANDS_ISSUED] = IST(""),
};
/* Specific labels for all stats fields. Empty by default. */
const struct ist promex_st_metric_labels[ST_F_TOTAL_FIELDS] = {
[ST_F_PXNAME] = IST(""),
[ST_F_SVNAME] = IST(""),
[ST_F_QCUR] = IST(""),
[ST_F_QMAX] = IST(""),
[ST_F_SCUR] = IST(""),
[ST_F_SMAX] = IST(""),
[ST_F_SLIM] = IST(""),
[ST_F_STOT] = IST(""),
[ST_F_BIN] = IST(""),
[ST_F_BOUT] = IST(""),
[ST_F_DREQ] = IST(""),
[ST_F_DRESP] = IST(""),
[ST_F_EREQ] = IST(""),
[ST_F_ECON] = IST(""),
[ST_F_ERESP] = IST(""),
[ST_F_WRETR] = IST(""),
[ST_F_WREDIS] = IST(""),
[ST_F_STATUS] = IST(""),
[ST_F_WEIGHT] = IST(""),
[ST_F_ACT] = IST(""),
[ST_F_BCK] = IST(""),
[ST_F_CHKFAIL] = IST(""),
[ST_F_CHKDOWN] = IST(""),
[ST_F_LASTCHG] = IST(""),
[ST_F_DOWNTIME] = IST(""),
[ST_F_QLIMIT] = IST(""),
[ST_F_PID] = IST(""),
[ST_F_IID] = IST(""),
[ST_F_SID] = IST(""),
[ST_F_THROTTLE] = IST(""),
[ST_F_LBTOT] = IST(""),
[ST_F_TRACKED] = IST(""),
[ST_F_TYPE] = IST(""),
[ST_F_RATE] = IST(""),
[ST_F_RATE_LIM] = IST(""),
[ST_F_RATE_MAX] = IST(""),
[ST_F_CHECK_STATUS] = IST(""),
[ST_F_CHECK_CODE] = IST(""),
[ST_F_CHECK_DURATION] = IST(""),
[ST_F_HRSP_1XX] = IST("code=\"1xx\""),
[ST_F_HRSP_2XX] = IST("code=\"2xx\""),
[ST_F_HRSP_3XX] = IST("code=\"3xx\""),
[ST_F_HRSP_4XX] = IST("code=\"4xx\""),
[ST_F_HRSP_5XX] = IST("code=\"5xx\""),
[ST_F_HRSP_OTHER] = IST("code=\"other\""),
[ST_F_HANAFAIL] = IST(""),
[ST_F_REQ_RATE] = IST(""),
[ST_F_REQ_RATE_MAX] = IST(""),
[ST_F_REQ_TOT] = IST(""),
[ST_F_CLI_ABRT] = IST(""),
[ST_F_SRV_ABRT] = IST(""),
[ST_F_COMP_IN] = IST(""),
[ST_F_COMP_OUT] = IST(""),
[ST_F_COMP_BYP] = IST(""),
[ST_F_COMP_RSP] = IST(""),
[ST_F_LASTSESS] = IST(""),
[ST_F_LAST_CHK] = IST(""),
[ST_F_LAST_AGT] = IST(""),
[ST_F_QTIME] = IST(""),
[ST_F_CTIME] = IST(""),
[ST_F_RTIME] = IST(""),
[ST_F_TTIME] = IST(""),
[ST_F_AGENT_STATUS] = IST(""),
[ST_F_AGENT_CODE] = IST(""),
[ST_F_AGENT_DURATION] = IST(""),
[ST_F_CHECK_DESC] = IST(""),
[ST_F_AGENT_DESC] = IST(""),
[ST_F_CHECK_RISE] = IST(""),
[ST_F_CHECK_FALL] = IST(""),
[ST_F_CHECK_HEALTH] = IST(""),
[ST_F_AGENT_RISE] = IST(""),
[ST_F_AGENT_FALL] = IST(""),
[ST_F_AGENT_HEALTH] = IST(""),
[ST_F_ADDR] = IST(""),
[ST_F_COOKIE] = IST(""),
[ST_F_MODE] = IST(""),
[ST_F_ALGO] = IST(""),
[ST_F_CONN_RATE] = IST(""),
[ST_F_CONN_RATE_MAX] = IST(""),
[ST_F_CONN_TOT] = IST(""),
[ST_F_INTERCEPTED] = IST(""),
[ST_F_DCON] = IST(""),
[ST_F_DSES] = IST(""),
[ST_F_WREW] = IST(""),
[ST_F_CONNECT] = IST(""),
[ST_F_REUSE] = IST(""),
[ST_F_CACHE_LOOKUPS] = IST(""),
[ST_F_CACHE_HITS] = IST(""),
[ST_F_IDLE_CONN_CUR] = IST(""),
[ST_F_SAFE_CONN_CUR] = IST(""),
[ST_F_USED_CONN_CUR] = IST(""),
[ST_F_NEED_CONN_EST] = IST(""),
};
/* Type for all info fields. "untyped" is used for unsupported field. */
const struct ist promex_inf_metric_types[INF_TOTAL_FIELDS] = {
[INF_NAME] = IST("untyped"),
[INF_VERSION] = IST("untyped"),
[INF_RELEASE_DATE] = IST("untyped"),
[INF_NBTHREAD] = IST("gauge"),
[INF_NBPROC] = IST("gauge"),
[INF_PROCESS_NUM] = IST("gauge"),
[INF_PID] = IST("untyped"),
[INF_UPTIME] = IST("untyped"),
[INF_UPTIME_SEC] = IST("gauge"),
[INF_MEMMAX_MB] = IST("gauge"),
[INF_POOL_ALLOC_MB] = IST("gauge"),
[INF_POOL_USED_MB] = IST("gauge"),
[INF_POOL_FAILED] = IST("counter"),
[INF_ULIMIT_N] = IST("gauge"),
[INF_MAXSOCK] = IST("gauge"),
[INF_MAXCONN] = IST("gauge"),
[INF_HARD_MAXCONN] = IST("gauge"),
[INF_CURR_CONN] = IST("gauge"),
[INF_CUM_CONN] = IST("counter"),
[INF_CUM_REQ] = IST("counter"),
[INF_MAX_SSL_CONNS] = IST("gauge"),
[INF_CURR_SSL_CONNS] = IST("gauge"),
[INF_CUM_SSL_CONNS] = IST("counter"),
[INF_MAXPIPES] = IST("gauge"),
[INF_PIPES_USED] = IST("counter"),
[INF_PIPES_FREE] = IST("counter"),
[INF_CONN_RATE] = IST("gauge"),
[INF_CONN_RATE_LIMIT] = IST("gauge"),
[INF_MAX_CONN_RATE] = IST("gauge"),
[INF_SESS_RATE] = IST("gauge"),
[INF_SESS_RATE_LIMIT] = IST("gauge"),
[INF_MAX_SESS_RATE] = IST("gauge"),
[INF_SSL_RATE] = IST("gauge"),
[INF_SSL_RATE_LIMIT] = IST("gauge"),
[INF_MAX_SSL_RATE] = IST("gauge"),
[INF_SSL_FRONTEND_KEY_RATE] = IST("gauge"),
[INF_SSL_FRONTEND_MAX_KEY_RATE] = IST("gauge"),
[INF_SSL_FRONTEND_SESSION_REUSE_PCT] = IST("gauge"),
[INF_SSL_BACKEND_KEY_RATE] = IST("gauge"),
[INF_SSL_BACKEND_MAX_KEY_RATE] = IST("gauge"),
[INF_SSL_CACHE_LOOKUPS] = IST("counter"),
[INF_SSL_CACHE_MISSES] = IST("counter"),
[INF_COMPRESS_BPS_IN] = IST("counter"),
[INF_COMPRESS_BPS_OUT] = IST("counter"),
[INF_COMPRESS_BPS_RATE_LIM] = IST("gauge"),
[INF_ZLIB_MEM_USAGE] = IST("gauge"),
[INF_MAX_ZLIB_MEM_USAGE] = IST("gauge"),
[INF_TASKS] = IST("gauge"),
[INF_RUN_QUEUE] = IST("gauge"),
[INF_IDLE_PCT] = IST("gauge"),
[INF_NODE] = IST("untyped"),
[INF_DESCRIPTION] = IST("untyped"),
[INF_STOPPING] = IST("gauge"),
[INF_JOBS] = IST("gauge"),
[INF_UNSTOPPABLE_JOBS] = IST("gauge"),
[INF_LISTENERS] = IST("gauge"),
[INF_ACTIVE_PEERS] = IST("gauge"),
[INF_CONNECTED_PEERS] = IST("gauge"),
[INF_DROPPED_LOGS] = IST("counter"),
[INF_BUSY_POLLING] = IST("gauge"),
[INF_FAILED_RESOLUTIONS] = IST("counter"),
[INF_TOTAL_BYTES_OUT] = IST("counter"),
[INF_TOTAL_SPLICED_BYTES_OUT] = IST("counter"),
[INF_BYTES_OUT_RATE] = IST("gauge"),
[INF_DEBUG_COMMANDS_ISSUED] = IST(""),
};
/* Type for all stats fields. "untyped" is used for unsupported field. */
const struct ist promex_st_metric_types[ST_F_TOTAL_FIELDS] = {
[ST_F_PXNAME] = IST("untyped"),
[ST_F_SVNAME] = IST("untyped"),
[ST_F_QCUR] = IST("gauge"),
[ST_F_QMAX] = IST("gauge"),
[ST_F_SCUR] = IST("gauge"),
[ST_F_SMAX] = IST("gauge"),
[ST_F_SLIM] = IST("gauge"),
[ST_F_STOT] = IST("counter"),
[ST_F_BIN] = IST("counter"),
[ST_F_BOUT] = IST("counter"),
[ST_F_DREQ] = IST("counter"),
[ST_F_DRESP] = IST("counter"),
[ST_F_EREQ] = IST("counter"),
[ST_F_ECON] = IST("counter"),
[ST_F_ERESP] = IST("counter"),
[ST_F_WRETR] = IST("counter"),
[ST_F_WREDIS] = IST("counter"),
[ST_F_STATUS] = IST("gauge"),
[ST_F_WEIGHT] = IST("gauge"),
[ST_F_ACT] = IST("gauge"),
[ST_F_BCK] = IST("gauge"),
[ST_F_CHKFAIL] = IST("counter"),
[ST_F_CHKDOWN] = IST("counter"),
[ST_F_LASTCHG] = IST("gauge"),
[ST_F_DOWNTIME] = IST("counter"),
[ST_F_QLIMIT] = IST("gauge"),
[ST_F_PID] = IST("untyped"),
[ST_F_IID] = IST("untyped"),
[ST_F_SID] = IST("untyped"),
[ST_F_THROTTLE] = IST("gauge"),
[ST_F_LBTOT] = IST("counter"),
[ST_F_TRACKED] = IST("untyped"),
[ST_F_TYPE] = IST("untyped"),
[ST_F_RATE] = IST("untyped"),
[ST_F_RATE_LIM] = IST("gauge"),
[ST_F_RATE_MAX] = IST("gauge"),
[ST_F_CHECK_STATUS] = IST("gauge"),
[ST_F_CHECK_CODE] = IST("gauge"),
[ST_F_CHECK_DURATION] = IST("gauge"),
[ST_F_HRSP_1XX] = IST("counter"),
[ST_F_HRSP_2XX] = IST("counter"),
[ST_F_HRSP_3XX] = IST("counter"),
[ST_F_HRSP_4XX] = IST("counter"),
[ST_F_HRSP_5XX] = IST("counter"),
[ST_F_HRSP_OTHER] = IST("counter"),
[ST_F_HANAFAIL] = IST("counter"),
[ST_F_REQ_RATE] = IST("untyped"),
[ST_F_REQ_RATE_MAX] = IST("gauge"),
[ST_F_REQ_TOT] = IST("counter"),
[ST_F_CLI_ABRT] = IST("counter"),
[ST_F_SRV_ABRT] = IST("counter"),
[ST_F_COMP_IN] = IST("counter"),
[ST_F_COMP_OUT] = IST("counter"),
[ST_F_COMP_BYP] = IST("counter"),
[ST_F_COMP_RSP] = IST("counter"),
[ST_F_LASTSESS] = IST("gauge"),
[ST_F_LAST_CHK] = IST("untyped"),
[ST_F_LAST_AGT] = IST("untyped"),
[ST_F_QTIME] = IST("gauge"),
[ST_F_CTIME] = IST("gauge"),
[ST_F_RTIME] = IST("gauge"),
[ST_F_TTIME] = IST("gauge"),
[ST_F_AGENT_STATUS] = IST("untyped"),
[ST_F_AGENT_CODE] = IST("untyped"),
[ST_F_AGENT_DURATION] = IST("gauge"),
[ST_F_CHECK_DESC] = IST("untyped"),
[ST_F_AGENT_DESC] = IST("untyped"),
[ST_F_CHECK_RISE] = IST("gauge"),
[ST_F_CHECK_FALL] = IST("gauge"),
[ST_F_CHECK_HEALTH] = IST("gauge"),
[ST_F_AGENT_RISE] = IST("gauge"),
[ST_F_AGENT_FALL] = IST("gauge"),
[ST_F_AGENT_HEALTH] = IST("gauge"),
[ST_F_ADDR] = IST("untyped"),
[ST_F_COOKIE] = IST("untyped"),
[ST_F_MODE] = IST("untyped"),
[ST_F_ALGO] = IST("untyped"),
[ST_F_CONN_RATE] = IST("untyped"),
[ST_F_CONN_RATE_MAX] = IST("gauge"),
[ST_F_CONN_TOT] = IST("counter"),
[ST_F_INTERCEPTED] = IST("counter"),
[ST_F_DCON] = IST("counter"),
[ST_F_DSES] = IST("counter"),
[ST_F_WREW] = IST("counter"),
[ST_F_CONNECT] = IST("counter"),
[ST_F_REUSE] = IST("counter"),
[ST_F_CACHE_LOOKUPS] = IST("counter"),
[ST_F_CACHE_HITS] = IST("counter"),
[ST_F_SRV_ICUR] = IST("gauge"),
[ST_F_SRV_ILIM] = IST("gauge"),
[ST_F_QT_MAX] = IST("gauge"),
[ST_F_CT_MAX] = IST("gauge"),
[ST_F_RT_MAX] = IST("gauge"),
[ST_F_TT_MAX] = IST("gauge"),
[ST_F_EINT] = IST("counter"),
[ST_F_IDLE_CONN_CUR] = IST("gauge"),
[ST_F_SAFE_CONN_CUR] = IST("gauge"),
[ST_F_USED_CONN_CUR] = IST("gauge"),
[ST_F_NEED_CONN_EST] = IST("gauge"),
};
/* Return the server status: 0=DOWN, 1=UP, 2=MAINT, 3=DRAIN, 4=NOLB. */
static int promex_srv_status(struct server *sv)
{
int state = 0;
if (sv->cur_state == SRV_ST_RUNNING || sv->cur_state == SRV_ST_STARTING) {
state = 1;
if (sv->cur_admin & SRV_ADMF_DRAIN)
state = 3;
}
else if (sv->cur_state == SRV_ST_STOPPING)
state = 4;
if (sv->cur_admin & SRV_ADMF_MAINT)
state = 2;
return state;
}
/* Convert a field to its string representation and write it in <out>, followed
* by a newline, if there is enough space. non-numeric value are converted in
* "Nan" because Prometheus only support numerical values (but it is unexepceted
* to process this kind of value). It returns 1 on success. Otherwise, it
* returns 0. The buffer's length must not exceed <max> value.
*/
static int promex_metric_to_str(struct buffer *out, struct field *f, size_t max)
{
int ret = 0;
switch (field_format(f, 0)) {
case FF_EMPTY: ret = chunk_strcat(out, "Nan\n"); break;
case FF_S32: ret = chunk_appendf(out, "%d\n", f->u.s32); break;
case FF_U32: ret = chunk_appendf(out, "%u\n", f->u.u32); break;
case FF_S64: ret = chunk_appendf(out, "%lld\n", (long long)f->u.s64); break;
case FF_U64: ret = chunk_appendf(out, "%llu\n", (unsigned long long)f->u.u64); break;
case FF_FLT: ret = chunk_appendf(out, "%f\n", f->u.flt); break;
case FF_STR: ret = chunk_strcat(out, "Nan\n"); break;
default: ret = chunk_strcat(out, "Nan\n"); break;
}
if (!ret || out->data > max)
return 0;
return 1;
}
/* Concatenate the <prefix> with the field name using the array
* <promex_st_metric_names> and store it in <name>. The field type is in
* <appctx->st2>. This function never fails but relies on
* <PROMEX_MAX_NAME_LEN>. So by sure the result is small enough to be copied in
* <name>
*/
static void promex_metric_name(struct appctx *appctx, struct ist *name, const struct ist prefix)
{
const struct ist *names;
names = ((appctx->ctx.stats.flags & PROMEX_FL_INFO_METRIC)
? promex_inf_metric_names
: promex_st_metric_names);
istcat(name, prefix, PROMEX_MAX_NAME_LEN);
istcat(name, names[appctx->st2], PROMEX_MAX_NAME_LEN);
}
/* Dump the header lines for <metric>. It is its #HELP and #TYPE strings. It
* returns 1 on success. Otherwise, if <out> length exceeds <max>, it returns 0.
*/
static int promex_dump_metric_header(struct appctx *appctx, struct htx *htx,
const struct ist name, struct ist *out, size_t max)
{
const struct ist *desc, *types;
if (appctx->ctx.stats.flags & PROMEX_FL_INFO_METRIC) {
desc = promex_inf_metric_desc;
types = promex_inf_metric_types;
}
else {
desc = promex_st_metric_desc;
types = promex_st_metric_types;
}
if (istcat(out, ist("# HELP "), max) == -1 ||
istcat(out, name, max) == -1 ||
istcat(out, ist(" "), max) == -1 ||
istcat(out, desc[appctx->st2], max) == -1 ||
istcat(out, ist("\n# TYPE "), max) == -1 ||
istcat(out, name, max) == -1 ||
istcat(out, ist(" "), max) == -1 ||
istcat(out, types[appctx->st2], max) == -1 ||
istcat(out, ist("\n"), max) == -1)
goto full;
return 1;
full:
return 0;
}
/* Dump the line for <metric>. It starts by the metric name followed by its
* labels (proxy name, server name...) between braces and finally its value. If
* not already done, the header lines are dumped first. It returns 1 on
* success. Otherwise if <out> length exceeds <max>, it returns 0.
*/
static int promex_dump_metric(struct appctx *appctx, struct htx *htx,
const struct ist prefix, struct field *metric,
struct ist *out, size_t max)
{
struct ist name = { .ptr = (char[PROMEX_MAX_NAME_LEN]){ 0 }, .len = 0 };
size_t len = out->len;
if (out->len + PROMEX_MAX_METRIC_LENGTH > max)
return 0;
promex_metric_name(appctx, &name, prefix);
if ((appctx->ctx.stats.flags & PROMEX_FL_METRIC_HDR) &&
!promex_dump_metric_header(appctx, htx, name, out, max))
goto full;
if (appctx->ctx.stats.flags & PROMEX_FL_INFO_METRIC) {
const struct ist label = promex_inf_metric_labels[appctx->st2];
if (istcat(out, name, max) == -1 ||
(label.len && istcat(out, ist("{"), max) == -1) ||
(label.len && istcat(out, label, max) == -1) ||
(label.len && istcat(out, ist("}"), max) == -1) ||
istcat(out, ist(" "), max) == -1)
goto full;
}
else {
struct proxy *px = appctx->ctx.stats.obj1;
struct server *srv = appctx->ctx.stats.obj2;
const struct ist label = promex_st_metric_labels[appctx->st2];
if (istcat(out, name, max) == -1 ||
istcat(out, ist("{proxy=\""), max) == -1 ||
istcat(out, ist2(px->id, strlen(px->id)), max) == -1 ||
istcat(out, ist("\""), max) == -1 ||
(srv && istcat(out, ist(",server=\""), max) == -1) ||
(srv && istcat(out, ist2(srv->id, strlen(srv->id)), max) == -1) ||
(srv && istcat(out, ist("\""), max) == -1) ||
(label.len && istcat(out, ist(","), max) == -1) ||
(label.len && istcat(out, label, max) == -1) ||
istcat(out, ist("} "), max) == -1)
goto full;
}
trash.data = out->len;
if (!promex_metric_to_str(&trash, metric, max))
goto full;
out->len = trash.data;
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
return 1;
full:
// Restore previous length
out->len = len;
return 0;
}
/* Dump global metrics (prefixed by "haproxy_process_"). It returns 1 on success,
* 0 if <htx> is full and -1 in case of any error. */
static int promex_dump_global_metrics(struct appctx *appctx, struct htx *htx)
{
static struct ist prefix = IST("haproxy_process_");
struct field metric;
struct channel *chn = si_ic(appctx->owner);
struct ist out = ist2(trash.area, 0);
size_t max = htx_get_max_blksz(htx, channel_htx_recv_max(chn, htx));
int ret = 1;
#ifdef USE_OPENSSL
int ssl_sess_rate = read_freq_ctr(&global.ssl_per_sec);
int ssl_key_rate = read_freq_ctr(&global.ssl_fe_keys_per_sec);
int ssl_reuse = 0;
if (ssl_key_rate < ssl_sess_rate) {
/* count the ssl reuse ratio and avoid overflows in both directions */
ssl_reuse = 100 - (100 * ssl_key_rate + (ssl_sess_rate - 1) / 2) / ssl_sess_rate;
}
#endif
while (appctx->st2 && appctx->st2 < INF_TOTAL_FIELDS) {
switch (appctx->st2) {
case INF_NBTHREAD:
metric = mkf_u32(FO_CONFIG|FS_SERVICE, global.nbthread);
break;
case INF_NBPROC:
metric = mkf_u32(FO_CONFIG|FS_SERVICE, global.nbproc);
break;
case INF_PROCESS_NUM:
metric = mkf_u32(FO_KEY, relative_pid);
break;
case INF_UPTIME_SEC:
metric = mkf_u32(FN_DURATION, start_date.tv_sec);
break;
case INF_MEMMAX_MB:
metric = mkf_u64(FO_CONFIG|FN_LIMIT, global.rlimit_memmax * 1048576L);
break;
case INF_POOL_ALLOC_MB:
metric = mkf_u64(0, pool_total_allocated());
break;
case INF_POOL_USED_MB:
metric = mkf_u64(0, pool_total_used());
break;
case INF_POOL_FAILED:
metric = mkf_u32(FN_COUNTER, pool_total_failures());
break;
case INF_ULIMIT_N:
metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.rlimit_nofile);
break;
case INF_MAXSOCK:
metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.maxsock);
break;
case INF_MAXCONN:
metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.maxconn);
break;
case INF_HARD_MAXCONN:
metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.hardmaxconn);
break;
case INF_CURR_CONN:
metric = mkf_u32(0, actconn);
break;
case INF_CUM_CONN:
metric = mkf_u32(FN_COUNTER, totalconn);
break;
case INF_CUM_REQ:
metric = mkf_u32(FN_COUNTER, global.req_count);
break;
#ifdef USE_OPENSSL
case INF_MAX_SSL_CONNS:
metric = mkf_u32(FN_MAX, global.maxsslconn);
break;
case INF_CURR_SSL_CONNS:
metric = mkf_u32(0, sslconns);
break;
case INF_CUM_SSL_CONNS:
metric = mkf_u32(FN_COUNTER, totalsslconns);
break;
#endif
case INF_MAXPIPES:
metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.maxpipes);
break;
case INF_PIPES_USED:
metric = mkf_u32(0, pipes_used);
break;
case INF_PIPES_FREE:
metric = mkf_u32(0, pipes_free);
break;
case INF_CONN_RATE:
metric = mkf_u32(FN_RATE, read_freq_ctr(&global.conn_per_sec));
break;
case INF_CONN_RATE_LIMIT:
metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.cps_lim);
break;
case INF_MAX_CONN_RATE:
metric = mkf_u32(FN_MAX, global.cps_max);
break;
case INF_SESS_RATE:
metric = mkf_u32(FN_RATE, read_freq_ctr(&global.sess_per_sec));
break;
case INF_SESS_RATE_LIMIT:
metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.sps_lim);
break;
case INF_MAX_SESS_RATE:
metric = mkf_u32(FN_RATE, global.sps_max);
break;
#ifdef USE_OPENSSL
case INF_SSL_RATE:
metric = mkf_u32(FN_RATE, ssl_sess_rate);
break;
case INF_SSL_RATE_LIMIT:
metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.ssl_lim);
break;
case INF_MAX_SSL_RATE:
metric = mkf_u32(FN_MAX, global.ssl_max);
break;
case INF_SSL_FRONTEND_KEY_RATE:
metric = mkf_u32(0, ssl_key_rate);
break;
case INF_SSL_FRONTEND_MAX_KEY_RATE:
metric = mkf_u32(FN_MAX, global.ssl_fe_keys_max);
break;
case INF_SSL_FRONTEND_SESSION_REUSE_PCT:
metric = mkf_u32(0, ssl_reuse);
break;
case INF_SSL_BACKEND_KEY_RATE:
metric = mkf_u32(FN_RATE, read_freq_ctr(&global.ssl_be_keys_per_sec));
break;
case INF_SSL_BACKEND_MAX_KEY_RATE:
metric = mkf_u32(FN_MAX, global.ssl_be_keys_max);
break;
case INF_SSL_CACHE_LOOKUPS:
metric = mkf_u32(FN_COUNTER, global.shctx_lookups);
break;
case INF_SSL_CACHE_MISSES:
metric = mkf_u32(FN_COUNTER, global.shctx_misses);
break;
#endif
case INF_COMPRESS_BPS_IN:
metric = mkf_u32(FN_RATE, read_freq_ctr(&global.comp_bps_in));
break;
case INF_COMPRESS_BPS_OUT:
metric = mkf_u32(FN_RATE, read_freq_ctr(&global.comp_bps_out));
break;
case INF_COMPRESS_BPS_RATE_LIM:
metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.comp_rate_lim);
break;
#ifdef USE_ZLIB
case INF_ZLIB_MEM_USAGE:
metric = mkf_u32(0, zlib_used_memory);
break;
case INF_MAX_ZLIB_MEM_USAGE:
metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.maxzlibmem);
break;
#endif
case INF_TASKS:
metric = mkf_u32(0, nb_tasks_cur);
break;
case INF_RUN_QUEUE:
metric = mkf_u32(0, tasks_run_queue_cur);
break;
case INF_IDLE_PCT:
metric = mkf_u32(FN_AVG, ti->idle_pct);
break;
case INF_STOPPING:
metric = mkf_u32(0, stopping);
break;
case INF_JOBS:
metric = mkf_u32(0, jobs);
break;
case INF_UNSTOPPABLE_JOBS:
metric = mkf_u32(0, unstoppable_jobs);
break;
case INF_LISTENERS:
metric = mkf_u32(0, listeners);
break;
case INF_ACTIVE_PEERS:
metric = mkf_u32(0, active_peers);
break;
case INF_CONNECTED_PEERS:
metric = mkf_u32(0, connected_peers);
break;
case INF_DROPPED_LOGS:
metric = mkf_u32(0, dropped_logs);
break;
case INF_BUSY_POLLING:
metric = mkf_u32(0, !!(global.tune.options & GTUNE_BUSY_POLLING));
break;
case INF_FAILED_RESOLUTIONS:
metric = mkf_u32(0, dns_failed_resolutions);
break;
case INF_TOTAL_BYTES_OUT:
metric = mkf_u64(0, global.out_bytes);
break;
case INF_TOTAL_SPLICED_BYTES_OUT:
metric = mkf_u64(0, global.spliced_out_bytes);
break;
case INF_BYTES_OUT_RATE:
metric = mkf_u64(FN_RATE, (unsigned long long)read_freq_ctr(&global.out_32bps) * 32);
break;
default:
goto next_metric;
}
if (!promex_dump_metric(appctx, htx, prefix, &metric, &out, max))
goto full;
next_metric:
appctx->ctx.stats.flags |= PROMEX_FL_METRIC_HDR;
appctx->st2 = promex_global_metrics[appctx->st2];
}
end:
if (out.len) {
if (!htx_add_data_atonce(htx, out))
return -1; /* Unexpected and unrecoverable error */
channel_add_input(chn, out.len);
}
return ret;
full:
ret = 0;
goto end;
}
/* Dump frontends metrics (prefixed by "haproxy_frontend_"). It returns 1 on success,
* 0 if <htx> is full and -1 in case of any error. */
static int promex_dump_front_metrics(struct appctx *appctx, struct htx *htx)
{
static struct ist prefix = IST("haproxy_frontend_");
struct proxy *px;
struct field metric;
struct channel *chn = si_ic(appctx->owner);
struct ist out = ist2(trash.area, 0);
size_t max = htx_get_max_blksz(htx, channel_htx_recv_max(chn, htx));
int ret = 1;
while (appctx->st2 && appctx->st2 < ST_F_TOTAL_FIELDS) {
while (appctx->ctx.stats.obj1) {
px = appctx->ctx.stats.obj1;
/* skip the disabled proxies, global frontend and non-networked ones */
if (px->disabled || px->uuid <= 0 || !(px->cap & PR_CAP_FE))
goto next_px;
switch (appctx->st2) {
case ST_F_STATUS:
metric = mkf_u32(FO_STATUS, !px->disabled);
break;
case ST_F_SCUR:
metric = mkf_u32(0, px->feconn);
break;
case ST_F_SMAX:
metric = mkf_u32(FN_MAX, px->fe_counters.conn_max);
break;
case ST_F_SLIM:
metric = mkf_u32(FO_CONFIG|FN_LIMIT, px->maxconn);
break;
case ST_F_STOT:
metric = mkf_u64(FN_COUNTER, px->fe_counters.cum_sess);
break;
case ST_F_RATE_LIM:
metric = mkf_u32(FO_CONFIG|FN_LIMIT, px->fe_sps_lim);
break;
case ST_F_RATE_MAX:
metric = mkf_u32(FN_MAX, px->fe_counters.sps_max);
break;
case ST_F_CONN_RATE_MAX:
metric = mkf_u32(FN_MAX, px->fe_counters.cps_max);
break;
case ST_F_CONN_TOT:
metric = mkf_u64(FN_COUNTER, px->fe_counters.cum_conn);
break;
case ST_F_BIN:
metric = mkf_u64(FN_COUNTER, px->fe_counters.bytes_in);
break;
case ST_F_BOUT:
metric = mkf_u64(FN_COUNTER, px->fe_counters.bytes_out);
break;
case ST_F_DREQ:
metric = mkf_u64(FN_COUNTER, px->fe_counters.denied_req);
break;
case ST_F_DRESP:
metric = mkf_u64(FN_COUNTER, px->fe_counters.denied_resp);
break;
case ST_F_EREQ:
metric = mkf_u64(FN_COUNTER, px->fe_counters.failed_req);
break;
case ST_F_DCON:
metric = mkf_u64(FN_COUNTER, px->fe_counters.denied_conn);
break;
case ST_F_DSES:
metric = mkf_u64(FN_COUNTER, px->fe_counters.denied_sess);
break;
case ST_F_WREW:
metric = mkf_u64(FN_COUNTER, px->fe_counters.failed_rewrites);
break;
case ST_F_EINT:
metric = mkf_u64(FN_COUNTER, px->fe_counters.internal_errors);
break;
case ST_F_REQ_RATE_MAX:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u32(FN_MAX, px->fe_counters.p.http.rps_max);
break;
case ST_F_REQ_TOT:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.cum_req);
break;
case ST_F_HRSP_1XX:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.rsp[1]);
break;
case ST_F_HRSP_2XX:
if (px->mode != PR_MODE_HTTP)
goto next_px;
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.rsp[2]);
break;
case ST_F_HRSP_3XX:
if (px->mode != PR_MODE_HTTP)
goto next_px;
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.rsp[3]);
break;
case ST_F_HRSP_4XX:
if (px->mode != PR_MODE_HTTP)
goto next_px;
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.rsp[4]);
break;
case ST_F_HRSP_5XX:
if (px->mode != PR_MODE_HTTP)
goto next_px;
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.rsp[5]);
break;
case ST_F_HRSP_OTHER:
if (px->mode != PR_MODE_HTTP)
goto next_px;
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.rsp[0]);
break;
case ST_F_INTERCEPTED:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->fe_counters.intercepted_req);
break;
case ST_F_CACHE_LOOKUPS:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.cache_lookups);
break;
case ST_F_CACHE_HITS:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.cache_hits);
break;
case ST_F_COMP_IN:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->fe_counters.comp_in);
break;
case ST_F_COMP_OUT:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->fe_counters.comp_out);
break;
case ST_F_COMP_BYP:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->fe_counters.comp_byp);
break;
case ST_F_COMP_RSP:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.comp_rsp);
break;
default:
goto next_metric;
}
if (!promex_dump_metric(appctx, htx, prefix, &metric, &out, max))
goto full;
next_px:
appctx->ctx.stats.obj1 = px->next;
}
next_metric:
appctx->ctx.stats.flags |= PROMEX_FL_METRIC_HDR;
appctx->ctx.stats.obj1 = proxies_list;
appctx->st2 = promex_front_metrics[appctx->st2];
}
end:
if (out.len) {
if (!htx_add_data_atonce(htx, out))
return -1; /* Unexpected and unrecoverable error */
channel_add_input(chn, out.len);
}
return ret;
full:
ret = 0;
goto end;
}
/* Dump backends metrics (prefixed by "haproxy_backend_"). It returns 1 on success,
* 0 if <htx> is full and -1 in case of any error. */
static int promex_dump_back_metrics(struct appctx *appctx, struct htx *htx)
{
static struct ist prefix = IST("haproxy_backend_");
struct proxy *px;
struct field metric;
struct channel *chn = si_ic(appctx->owner);
struct ist out = ist2(trash.area, 0);
size_t max = htx_get_max_blksz(htx, channel_htx_recv_max(chn, htx));
int ret = 1;
uint32_t weight;
double secs;
while (appctx->st2 && appctx->st2 < ST_F_TOTAL_FIELDS) {
while (appctx->ctx.stats.obj1) {
px = appctx->ctx.stats.obj1;
/* skip the disabled proxies, global frontend and non-networked ones */
if (px->disabled || px->uuid <= 0 || !(px->cap & PR_CAP_BE))
goto next_px;
switch (appctx->st2) {
case ST_F_STATUS:
metric = mkf_u32(FO_STATUS, (px->lbprm.tot_weight > 0 || !px->srv) ? 1 : 0);
break;
case ST_F_SCUR:
metric = mkf_u32(0, px->beconn);
break;
case ST_F_SMAX:
metric = mkf_u32(FN_MAX, px->be_counters.conn_max);
break;
case ST_F_SLIM:
metric = mkf_u32(FO_CONFIG|FN_LIMIT, px->fullconn);
break;
case ST_F_STOT:
metric = mkf_u64(FN_COUNTER, px->be_counters.cum_conn);
break;
case ST_F_RATE_MAX:
metric = mkf_u32(0, px->be_counters.sps_max);
break;
case ST_F_LASTSESS:
metric = mkf_s32(FN_AGE, be_lastsession(px));
break;
case ST_F_QCUR:
metric = mkf_u32(0, px->nbpend);
break;
case ST_F_QMAX:
metric = mkf_u32(FN_MAX, px->be_counters.nbpend_max);
break;
case ST_F_CONNECT:
metric = mkf_u64(FN_COUNTER, px->be_counters.connect);
break;
case ST_F_REUSE:
metric = mkf_u64(FN_COUNTER, px->be_counters.reuse);
break;
case ST_F_BIN:
metric = mkf_u64(FN_COUNTER, px->be_counters.bytes_in);
break;
case ST_F_BOUT:
metric = mkf_u64(FN_COUNTER, px->be_counters.bytes_out);
break;
case ST_F_QTIME:
secs = (double)swrate_avg(px->be_counters.q_time, TIME_STATS_SAMPLES) / 1000.0;
metric = mkf_flt(FN_AVG, secs);
break;
case ST_F_CTIME:
secs = (double)swrate_avg(px->be_counters.c_time, TIME_STATS_SAMPLES) / 1000.0;
metric = mkf_flt(FN_AVG, secs);
break;
case ST_F_RTIME:
secs = (double)swrate_avg(px->be_counters.d_time, TIME_STATS_SAMPLES) / 1000.0;
metric = mkf_flt(FN_AVG, secs);
break;
case ST_F_TTIME:
secs = (double)swrate_avg(px->be_counters.t_time, TIME_STATS_SAMPLES) / 1000.0;
metric = mkf_flt(FN_AVG, secs);
break;
case ST_F_QT_MAX:
secs = (double)px->be_counters.qtime_max / 1000.0;
metric = mkf_flt(FN_MAX, secs);
break;
case ST_F_CT_MAX:
secs = (double)px->be_counters.ctime_max / 1000.0;
metric = mkf_flt(FN_MAX, secs);
break;
case ST_F_RT_MAX:
secs = (double)px->be_counters.dtime_max / 1000.0;
metric = mkf_flt(FN_MAX, secs);
break;
case ST_F_TT_MAX:
secs = (double)px->be_counters.ttime_max / 1000.0;
metric = mkf_flt(FN_MAX, secs);
break;
case ST_F_DREQ:
metric = mkf_u64(FN_COUNTER, px->be_counters.denied_req);
break;
case ST_F_DRESP:
metric = mkf_u64(FN_COUNTER, px->be_counters.denied_resp);
break;
case ST_F_ECON:
metric = mkf_u64(FN_COUNTER, px->be_counters.failed_conns);
break;
case ST_F_ERESP:
metric = mkf_u64(FN_COUNTER, px->be_counters.failed_resp);
break;
case ST_F_WRETR:
metric = mkf_u64(FN_COUNTER, px->be_counters.retries);
break;
case ST_F_WREDIS:
metric = mkf_u64(FN_COUNTER, px->be_counters.redispatches);
break;
case ST_F_WREW:
metric = mkf_u64(FN_COUNTER, px->be_counters.failed_rewrites);
break;
case ST_F_EINT:
metric = mkf_u64(FN_COUNTER, px->be_counters.internal_errors);
break;
case ST_F_CLI_ABRT:
metric = mkf_u64(FN_COUNTER, px->be_counters.cli_aborts);
break;
case ST_F_SRV_ABRT:
metric = mkf_u64(FN_COUNTER, px->be_counters.srv_aborts);
break;
case ST_F_WEIGHT:
weight = (px->lbprm.tot_weight * px->lbprm.wmult + px->lbprm.wdiv - 1) / px->lbprm.wdiv;
metric = mkf_u32(FN_AVG, weight);
break;
case ST_F_ACT:
metric = mkf_u32(0, px->srv_act);
break;
case ST_F_BCK:
metric = mkf_u32(0, px->srv_bck);
break;
case ST_F_CHKDOWN:
metric = mkf_u64(FN_COUNTER, px->down_trans);
break;
case ST_F_LASTCHG:
metric = mkf_u32(FN_AGE, now.tv_sec - px->last_change);
break;
case ST_F_DOWNTIME:
metric = mkf_u32(FN_COUNTER, be_downtime(px));
break;
case ST_F_LBTOT:
metric = mkf_u64(FN_COUNTER, px->be_counters.cum_lbconn);
break;
case ST_F_REQ_TOT:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.cum_req);
break;
case ST_F_HRSP_1XX:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.rsp[1]);
break;
case ST_F_HRSP_2XX:
if (px->mode != PR_MODE_HTTP)
goto next_px;
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.rsp[2]);
break;
case ST_F_HRSP_3XX:
if (px->mode != PR_MODE_HTTP)
goto next_px;
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.rsp[3]);
break;
case ST_F_HRSP_4XX:
if (px->mode != PR_MODE_HTTP)
goto next_px;
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.rsp[4]);
break;
case ST_F_HRSP_5XX:
if (px->mode != PR_MODE_HTTP)
goto next_px;
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.rsp[5]);
break;
case ST_F_HRSP_OTHER:
if (px->mode != PR_MODE_HTTP)
goto next_px;
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.rsp[0]);
break;
case ST_F_CACHE_LOOKUPS:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.cache_lookups);
break;
case ST_F_CACHE_HITS:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.cache_hits);
break;
case ST_F_COMP_IN:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->be_counters.comp_in);
break;
case ST_F_COMP_OUT:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->be_counters.comp_out);
break;
case ST_F_COMP_BYP:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->be_counters.comp_byp);
break;
case ST_F_COMP_RSP:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.comp_rsp);
break;
default:
goto next_metric;
}
if (!promex_dump_metric(appctx, htx, prefix, &metric, &out, max))
goto full;
next_px:
appctx->ctx.stats.obj1 = px->next;
}
next_metric:
appctx->ctx.stats.flags |= PROMEX_FL_METRIC_HDR;
appctx->ctx.stats.obj1 = proxies_list;
appctx->st2 = promex_back_metrics[appctx->st2];
}
end:
if (out.len) {
if (!htx_add_data_atonce(htx, out))
return -1; /* Unexpected and unrecoverable error */
channel_add_input(chn, out.len);
}
return ret;
full:
ret = 0;
goto end;
}
/* Dump servers metrics (prefixed by "haproxy_server_"). It returns 1 on success,
* 0 if <htx> is full and -1 in case of any error. */
static int promex_dump_srv_metrics(struct appctx *appctx, struct htx *htx)
{
static struct ist prefix = IST("haproxy_server_");
struct proxy *px;
struct server *sv;
struct field metric;
struct channel *chn = si_ic(appctx->owner);
struct ist out = ist2(trash.area, 0);
size_t max = htx_get_max_blksz(htx, channel_htx_recv_max(chn, htx));
int ret = 1;
uint32_t weight;
double secs;
while (appctx->st2 && appctx->st2 < ST_F_TOTAL_FIELDS) {
while (appctx->ctx.stats.obj1) {
px = appctx->ctx.stats.obj1;
/* skip the disabled proxies, global frontend and non-networked ones */
if (px->disabled || px->uuid <= 0 || !(px->cap & PR_CAP_BE))
goto next_px;
while (appctx->ctx.stats.obj2) {
sv = appctx->ctx.stats.obj2;
if ((appctx->ctx.stats.flags & PROMEX_FL_NO_MAINT_SRV) && (sv->cur_admin & SRV_ADMF_MAINT))
goto next_sv;
switch (appctx->st2) {
case ST_F_STATUS:
metric = mkf_u32(FO_STATUS, promex_srv_status(sv));
break;
case ST_F_SCUR:
metric = mkf_u32(0, sv->cur_sess);
break;
case ST_F_SMAX:
metric = mkf_u32(FN_MAX, sv->counters.cur_sess_max);
break;
case ST_F_SLIM:
metric = mkf_u32(FO_CONFIG|FN_LIMIT, sv->maxconn);
break;
case ST_F_STOT:
metric = mkf_u64(FN_COUNTER, sv->counters.cum_sess);
break;
case ST_F_RATE_MAX:
metric = mkf_u32(FN_MAX, sv->counters.sps_max);
break;
case ST_F_LASTSESS:
metric = mkf_s32(FN_AGE, srv_lastsession(sv));
break;
case ST_F_QCUR:
metric = mkf_u32(0, sv->nbpend);
break;
case ST_F_QMAX:
metric = mkf_u32(FN_MAX, sv->counters.nbpend_max);
break;
case ST_F_QLIMIT:
metric = mkf_u32(FO_CONFIG|FS_SERVICE, sv->maxqueue);
break;
case ST_F_BIN:
metric = mkf_u64(FN_COUNTER, sv->counters.bytes_in);
break;
case ST_F_BOUT:
metric = mkf_u64(FN_COUNTER, sv->counters.bytes_out);
break;
case ST_F_QTIME:
secs = (double)swrate_avg(sv->counters.q_time, TIME_STATS_SAMPLES) / 1000.0;
metric = mkf_flt(FN_AVG, secs);
break;
case ST_F_CTIME:
secs = (double)swrate_avg(sv->counters.c_time, TIME_STATS_SAMPLES) / 1000.0;
metric = mkf_flt(FN_AVG, secs);
break;
case ST_F_RTIME:
secs = (double)swrate_avg(sv->counters.d_time, TIME_STATS_SAMPLES) / 1000.0;
metric = mkf_flt(FN_AVG, secs);
break;
case ST_F_TTIME:
secs = (double)swrate_avg(sv->counters.t_time, TIME_STATS_SAMPLES) / 1000.0;
metric = mkf_flt(FN_AVG, secs);
break;
case ST_F_QT_MAX:
secs = (double)sv->counters.qtime_max / 1000.0;
metric = mkf_flt(FN_MAX, secs);
break;
case ST_F_CT_MAX:
secs = (double)sv->counters.ctime_max / 1000.0;
metric = mkf_flt(FN_MAX, secs);
break;
case ST_F_RT_MAX:
secs = (double)sv->counters.dtime_max / 1000.0;
metric = mkf_flt(FN_MAX, secs);
break;
case ST_F_TT_MAX:
secs = (double)sv->counters.ttime_max / 1000.0;
metric = mkf_flt(FN_MAX, secs);
break;
case ST_F_CONNECT:
metric = mkf_u64(FN_COUNTER, sv->counters.connect);
break;
case ST_F_REUSE:
metric = mkf_u64(FN_COUNTER, sv->counters.reuse);
break;
case ST_F_DRESP:
metric = mkf_u64(FN_COUNTER, sv->counters.denied_resp);
break;
case ST_F_ECON:
metric = mkf_u64(FN_COUNTER, sv->counters.failed_conns);
break;
case ST_F_ERESP:
metric = mkf_u64(FN_COUNTER, sv->counters.failed_resp);
break;
case ST_F_WRETR:
metric = mkf_u64(FN_COUNTER, sv->counters.retries);
break;
case ST_F_WREDIS:
metric = mkf_u64(FN_COUNTER, sv->counters.redispatches);
break;
case ST_F_WREW:
metric = mkf_u64(FN_COUNTER, sv->counters.failed_rewrites);
break;
case ST_F_EINT:
metric = mkf_u64(FN_COUNTER, sv->counters.internal_errors);
break;
case ST_F_CLI_ABRT:
metric = mkf_u64(FN_COUNTER, sv->counters.cli_aborts);
break;
case ST_F_SRV_ABRT:
metric = mkf_u64(FN_COUNTER, sv->counters.srv_aborts);
break;
case ST_F_WEIGHT:
weight = (sv->cur_eweight * px->lbprm.wmult + px->lbprm.wdiv - 1) / px->lbprm.wdiv;
metric = mkf_u32(FN_AVG, weight);
break;
case ST_F_CHECK_STATUS:
if ((sv->check.state & (CHK_ST_ENABLED|CHK_ST_PAUSED)) != CHK_ST_ENABLED)
goto next_sv;
metric = mkf_u32(FN_OUTPUT, sv->check.status);
break;
case ST_F_CHECK_CODE:
if ((sv->check.state & (CHK_ST_ENABLED|CHK_ST_PAUSED)) != CHK_ST_ENABLED)
goto next_sv;
metric = mkf_u32(FN_OUTPUT, (sv->check.status < HCHK_STATUS_L57DATA) ? 0 : sv->check.code);
break;
case ST_F_CHECK_DURATION:
if (sv->check.status < HCHK_STATUS_CHECKED)
goto next_sv;
secs = (double)sv->check.duration / 1000.0;
metric = mkf_flt(FN_DURATION, secs);
break;
case ST_F_CHKFAIL:
metric = mkf_u64(FN_COUNTER, sv->counters.failed_checks);
break;
case ST_F_CHKDOWN:
metric = mkf_u64(FN_COUNTER, sv->counters.down_trans);
break;
case ST_F_DOWNTIME:
metric = mkf_u32(FN_COUNTER, srv_downtime(sv));
break;
case ST_F_LASTCHG:
metric = mkf_u32(FN_AGE, now.tv_sec - sv->last_change);
break;
case ST_F_THROTTLE:
metric = mkf_u32(FN_AVG, server_throttle_rate(sv));
break;
case ST_F_LBTOT:
metric = mkf_u64(FN_COUNTER, sv->counters.cum_lbconn);
break;
case ST_F_REQ_TOT:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, sv->counters.p.http.cum_req);
break;
case ST_F_HRSP_1XX:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = mkf_u64(FN_COUNTER, sv->counters.p.http.rsp[1]);
break;
case ST_F_HRSP_2XX:
if (px->mode != PR_MODE_HTTP)
goto next_px;
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
metric = mkf_u64(FN_COUNTER, sv->counters.p.http.rsp[2]);
break;
case ST_F_HRSP_3XX:
if (px->mode != PR_MODE_HTTP)
goto next_px;
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
metric = mkf_u64(FN_COUNTER, sv->counters.p.http.rsp[3]);
break;
case ST_F_HRSP_4XX:
if (px->mode != PR_MODE_HTTP)
goto next_px;
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
metric = mkf_u64(FN_COUNTER, sv->counters.p.http.rsp[4]);
break;
case ST_F_HRSP_5XX:
if (px->mode != PR_MODE_HTTP)
goto next_px;
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
metric = mkf_u64(FN_COUNTER, sv->counters.p.http.rsp[5]);
break;
case ST_F_HRSP_OTHER:
if (px->mode != PR_MODE_HTTP)
goto next_px;
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
metric = mkf_u64(FN_COUNTER, sv->counters.p.http.rsp[0]);
break;
case ST_F_SRV_ICUR:
metric = mkf_u32(0, sv->curr_idle_conns);
break;
case ST_F_SRV_ILIM:
metric = mkf_u32(FO_CONFIG|FN_LIMIT, (sv->max_idle_conns == -1) ? 0 : sv->max_idle_conns);
break;
case ST_F_IDLE_CONN_CUR:
metric = mkf_u32(0, sv->curr_idle_nb);
break;
case ST_F_SAFE_CONN_CUR:
metric = mkf_u32(0, sv->curr_safe_nb);
break;
case ST_F_USED_CONN_CUR:
metric = mkf_u32(0, sv->curr_used_conns);
break;
case ST_F_NEED_CONN_EST:
metric = mkf_u32(0, sv->est_need_conns);
break;
default:
goto next_metric;
}
if (!promex_dump_metric(appctx, htx, prefix, &metric, &out, max))
goto full;
next_sv:
appctx->ctx.stats.obj2 = sv->next;
}
next_px:
appctx->ctx.stats.obj1 = px->next;
appctx->ctx.stats.obj2 = (appctx->ctx.stats.obj1 ? ((struct proxy *)appctx->ctx.stats.obj1)->srv : NULL);
}
next_metric:
appctx->ctx.stats.flags |= PROMEX_FL_METRIC_HDR;
appctx->ctx.stats.obj1 = proxies_list;
appctx->ctx.stats.obj2 = (appctx->ctx.stats.obj1 ? ((struct proxy *)appctx->ctx.stats.obj1)->srv : NULL);
appctx->st2 = promex_srv_metrics[appctx->st2];
}
end:
if (out.len) {
if (!htx_add_data_atonce(htx, out))
return -1; /* Unexpected and unrecoverable error */
channel_add_input(chn, out.len);
}
return ret;
full:
ret = 0;
goto end;
}
/* Dump all metrics (global, frontends, backends and servers) depending on the
* dumper state (appctx->st1). It returns 1 on success, 0 if <htx> is full and
* -1 in case of any error.
* Uses <appctx.ctx.stats.obj1> as a pointer to the current proxy and <obj2> as
* a pointer to the current server/listener. */
static int promex_dump_metrics(struct appctx *appctx, struct stream_interface *si, struct htx *htx)
{
int ret;
switch (appctx->st1) {
case PROMEX_DUMPER_INIT:
appctx->ctx.stats.obj1 = NULL;
appctx->ctx.stats.obj2 = NULL;
appctx->ctx.stats.flags |= (PROMEX_FL_METRIC_HDR|PROMEX_FL_INFO_METRIC);
appctx->st2 = promex_global_metrics[INF_NAME];
appctx->st1 = PROMEX_DUMPER_GLOBAL;
/* fall through */
case PROMEX_DUMPER_GLOBAL:
if (appctx->ctx.stats.flags & PROMEX_FL_SCOPE_GLOBAL) {
ret = promex_dump_global_metrics(appctx, htx);
if (ret <= 0) {
if (ret == -1)
goto error;
goto full;
}
}
appctx->ctx.stats.obj1 = proxies_list;
appctx->ctx.stats.obj2 = NULL;
appctx->ctx.stats.flags &= ~PROMEX_FL_INFO_METRIC;
appctx->ctx.stats.flags |= (PROMEX_FL_METRIC_HDR|PROMEX_FL_STATS_METRIC);
appctx->st2 = promex_front_metrics[ST_F_PXNAME];
appctx->st1 = PROMEX_DUMPER_FRONT;
/* fall through */
case PROMEX_DUMPER_FRONT:
if (appctx->ctx.stats.flags & PROMEX_FL_SCOPE_FRONT) {
ret = promex_dump_front_metrics(appctx, htx);
if (ret <= 0) {
if (ret == -1)
goto error;
goto full;
}
}
appctx->ctx.stats.obj1 = proxies_list;
appctx->ctx.stats.obj2 = NULL;
appctx->ctx.stats.flags |= PROMEX_FL_METRIC_HDR;
appctx->st2 = promex_back_metrics[ST_F_PXNAME];
appctx->st1 = PROMEX_DUMPER_BACK;
/* fall through */
case PROMEX_DUMPER_BACK:
if (appctx->ctx.stats.flags & PROMEX_FL_SCOPE_BACK) {
ret = promex_dump_back_metrics(appctx, htx);
if (ret <= 0) {
if (ret == -1)
goto error;
goto full;
}
}
appctx->ctx.stats.obj1 = proxies_list;
appctx->ctx.stats.obj2 = (appctx->ctx.stats.obj1 ? ((struct proxy *)appctx->ctx.stats.obj1)->srv : NULL);
appctx->ctx.stats.flags |= PROMEX_FL_METRIC_HDR;
appctx->st2 = promex_srv_metrics[ST_F_PXNAME];
appctx->st1 = PROMEX_DUMPER_SRV;
/* fall through */
case PROMEX_DUMPER_SRV:
if (appctx->ctx.stats.flags & PROMEX_FL_SCOPE_SERVER) {
ret = promex_dump_srv_metrics(appctx, htx);
if (ret <= 0) {
if (ret == -1)
goto error;
goto full;
}
}
appctx->ctx.stats.obj1 = NULL;
appctx->ctx.stats.obj2 = NULL;
appctx->ctx.stats.flags &= ~(PROMEX_FL_METRIC_HDR|PROMEX_FL_INFO_METRIC|PROMEX_FL_STATS_METRIC);
appctx->st2 = 0;
appctx->st1 = PROMEX_DUMPER_DONE;
/* fall through */
case PROMEX_DUMPER_DONE:
default:
break;
}
return 1;
full:
si_rx_room_blk(si);
return 0;
error:
/* unrecoverable error */
appctx->ctx.stats.obj1 = NULL;
appctx->ctx.stats.obj2 = NULL;
appctx->ctx.stats.flags = 0;
appctx->st2 = 0;
appctx->st1 = PROMEX_DUMPER_DONE;
return -1;
}
/* Parse the query string of request URI to filter the metrics. It returns 1 on
* success and -1 on error. */
static int promex_parse_uri(struct appctx *appctx, struct stream_interface *si)
{
struct channel *req = si_oc(si);
struct channel *res = si_ic(si);
struct htx *req_htx, *res_htx;
struct htx_sl *sl;
char *p, *key, *value;
const char *end;
struct buffer *err;
int default_scopes = PROMEX_FL_SCOPE_ALL;
int len;
/* Get the query-string */
req_htx = htxbuf(&req->buf);
sl = http_get_stline(req_htx);
if (!sl)
goto error;
p = http_find_param_list(HTX_SL_REQ_UPTR(sl), HTX_SL_REQ_ULEN(sl), '?');
if (!p)
goto end;
end = HTX_SL_REQ_UPTR(sl) + HTX_SL_REQ_ULEN(sl);
/* copy the query-string */
len = end - p;
chunk_reset(&trash);
memcpy(trash.area, p, len);
trash.area[len] = 0;
p = trash.area;
end = trash.area + len;
/* Parse the query-string */
while (p < end && *p && *p != '#') {
value = NULL;
/* decode parameter name */
key = p;
while (p < end && *p != '=' && *p != '&' && *p != '#')
++p;
/* found a value */
if (*p == '=') {
*(p++) = 0;
value = p;
}
else if (*p == '&')
*(p++) = 0;
else if (*p == '#')
*p = 0;
len = url_decode(key, 1);
if (len == -1)
goto error;
/* decode value */
if (value) {
while (p < end && *p != '=' && *p != '&' && *p != '#')
++p;
if (*p == '=')
goto error;
if (*p == '&')
*(p++) = 0;
else if (*p == '#')
*p = 0;
len = url_decode(value, 1);
if (len == -1)
goto error;
}
if (!strcmp(key, "scope")) {
default_scopes = 0; /* at least a scope defined, unset default scopes */
if (!value)
goto error;
else if (*value == 0)
appctx->ctx.stats.flags &= ~PROMEX_FL_SCOPE_ALL;
else if (*value == '*')
appctx->ctx.stats.flags |= PROMEX_FL_SCOPE_ALL;
else if (!strcmp(value, "global"))
appctx->ctx.stats.flags |= PROMEX_FL_SCOPE_GLOBAL;
else if (!strcmp(value, "server"))
appctx->ctx.stats.flags |= PROMEX_FL_SCOPE_SERVER;
else if (!strcmp(value, "backend"))
appctx->ctx.stats.flags |= PROMEX_FL_SCOPE_BACK;
else if (!strcmp(value, "frontend"))
appctx->ctx.stats.flags |= PROMEX_FL_SCOPE_FRONT;
else
goto error;
}
else if (!strcmp(key, "no-maint"))
appctx->ctx.stats.flags |= PROMEX_FL_NO_MAINT_SRV;
}
end:
appctx->ctx.stats.flags |= default_scopes;
return 1;
error:
err = &http_err_chunks[HTTP_ERR_400];
channel_erase(res);
res->buf.data = b_data(err);
memcpy(res->buf.area, b_head(err), b_data(err));
res_htx = htx_from_buf(&res->buf);
channel_add_input(res, res_htx->data);
appctx->st0 = PROMEX_ST_END;
return -1;
}
/* Send HTTP headers of the response. It returns 1 on success and 0 if <htx> is
* full. */
static int promex_send_headers(struct appctx *appctx, struct stream_interface *si, struct htx *htx)
{
struct channel *chn = si_ic(appctx->owner);
struct htx_sl *sl;
unsigned int flags;
flags = (HTX_SL_F_IS_RESP|HTX_SL_F_VER_11|HTX_SL_F_XFER_ENC|HTX_SL_F_XFER_LEN|HTX_SL_F_CHNK);
sl = htx_add_stline(htx, HTX_BLK_RES_SL, flags, ist("HTTP/1.1"), ist("200"), ist("OK"));
if (!sl)
goto full;
sl->info.res.status = 200;
if (!htx_add_header(htx, ist("Cache-Control"), ist("no-cache")) ||
!htx_add_header(htx, ist("Connection"), ist("close")) ||
!htx_add_header(htx, ist("Content-Type"), ist("text/plain; version=0.0.4")) ||
!htx_add_header(htx, ist("Transfer-Encoding"), ist("chunked")) ||
!htx_add_endof(htx, HTX_BLK_EOH))
goto full;
channel_add_input(chn, htx->data);
return 1;
full:
htx_reset(htx);
si_rx_room_blk(si);
return 0;
}
/* The function returns 1 if the initialisation is complete, 0 if
* an errors occurs and -1 if more data are required for initializing
* the applet.
*/
static int promex_appctx_init(struct appctx *appctx, struct proxy *px, struct stream *strm)
{
appctx->st0 = PROMEX_ST_INIT;
return 1;
}
/* The main I/O handler for the promex applet. */
static void promex_appctx_handle_io(struct appctx *appctx)
{
struct stream_interface *si = appctx->owner;
struct stream *s = si_strm(si);
struct channel *req = si_oc(si);
struct channel *res = si_ic(si);
struct htx *req_htx, *res_htx;
int ret;
res_htx = htx_from_buf(&res->buf);
if (unlikely(si->state == SI_ST_DIS || si->state == SI_ST_CLO))
goto out;
/* Check if the input buffer is available. */
if (!b_size(&res->buf)) {
si_rx_room_blk(si);
goto out;
}
switch (appctx->st0) {
case PROMEX_ST_INIT:
ret = promex_parse_uri(appctx, si);
if (ret <= 0) {
if (ret == -1)
goto error;
goto out;
}
appctx->st0 = PROMEX_ST_HEAD;
appctx->st1 = PROMEX_DUMPER_INIT;
/* fall through */
case PROMEX_ST_HEAD:
if (!promex_send_headers(appctx, si, res_htx))
goto out;
appctx->st0 = ((s->txn->meth == HTTP_METH_HEAD) ? PROMEX_ST_DONE : PROMEX_ST_DUMP);
/* fall through */
case PROMEX_ST_DUMP:
ret = promex_dump_metrics(appctx, si, res_htx);
if (ret <= 0) {
if (ret == -1)
goto error;
goto out;
}
appctx->st0 = PROMEX_ST_DONE;
/* fall through */
case PROMEX_ST_DONE:
/* Don't add TLR because mux-h1 will take care of it */
res_htx->flags |= HTX_FL_EOI; /* no more data are expected. Only EOM remains to add now */
if (!htx_add_endof(res_htx, HTX_BLK_EOM)) {
si_rx_room_blk(si);
goto out;
}
channel_add_input(res, 1);
appctx->st0 = PROMEX_ST_END;
/* fall through */
case PROMEX_ST_END:
if (!(res->flags & CF_SHUTR)) {
res->flags |= CF_READ_NULL;
si_shutr(si);
}
}
out:
htx_to_buf(res_htx, &res->buf);
/* eat the whole request */
if (co_data(req)) {
req_htx = htx_from_buf(&req->buf);
co_htx_skip(req, req_htx, co_data(req));
}
return;
error:
res->flags |= CF_READ_NULL;
si_shutr(si);
si_shutw(si);
}
struct applet promex_applet = {
.obj_type = OBJ_TYPE_APPLET,
.name = "<PROMEX>", /* used for logging */
.init = promex_appctx_init,
.fct = promex_appctx_handle_io,
};
static enum act_parse_ret service_parse_prometheus_exporter(const char **args, int *cur_arg, struct proxy *px,
struct act_rule *rule, char **err)
{
/* Prometheus exporter service is only available on "http-request" rulesets */
if (rule->from != ACT_F_HTTP_REQ) {
memprintf(err, "Prometheus exporter service only available on 'http-request' rulesets");
return ACT_RET_PRS_ERR;
}
/* Add applet pointer in the rule. */
rule->applet = promex_applet;
return ACT_RET_PRS_OK;
}
static void promex_register_build_options(void)
{
char *ptr = NULL;
memprintf(&ptr, "Built with the Prometheus exporter as a service");
hap_register_build_opts(ptr, 1);
}
static struct action_kw_list service_actions = { ILH, {
{ "prometheus-exporter", service_parse_prometheus_exporter },
{ /* END */ }
}};
INITCALL1(STG_REGISTER, service_keywords_register, &service_actions);
INITCALL0(STG_REGISTER, promex_register_build_options);
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