RepoMirrors
/
haproxy
mirror of http://git.haproxy.org/git/haproxy.git/
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

MINOR: contrib/prometheus-exporter: Add missing global and per-server metrics 

Following metrics are now exported by the prometheus exporter to reflect recent
changes on HAProxy :

  * haproxy_process_failed_resolutions
  * haproxy_process_bytes_out_total
  * haproxy_process_spliced_bytes_out_total
  * haproxy_process_bytes_out_rate

and

 * haproxy_server_unsafe_idle_connections_current
 * haproxy_server_safe_idle_connections_current
 * haproxy_server_used_connections_current
 * haproxy_server_need_connections_current
This commit is contained in:
Christopher Faulet 2020-07-10 15:39:39 +02:00
parent aaa70852d9
commit c55a626217
2 changed files with 90 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
contrib/prometheus-exporter/README
View File

@ -143,6 +143,10 @@ Exported metrics
| haproxy_process_connected_peers | Current number of connected peers. |
| haproxy_process_dropped_logs_total | Total number of dropped logs. |
| haproxy_process_busy_polling_enabled | Non zero if the busy polling is enabled. |
| haproxy_process_failed_resolutions | Total number of failed DNS resolutions. |
| haproxy_process_bytes_out_total | Total number of bytes emitted. |
| haproxy_process_spliced_bytes_out_total | Total number of bytes emitted through a kernel pipe. |
| haproxy_process_bytes_out_rate | Number of bytes emitted over the last elapsed second. |
+------------------------------------------------+-------------------------------------------------------------------------------+
* Frontend metrics
@ -283,6 +287,10 @@ Exported metrics
| haproxy_server_idle_connections_current | Current number of idle connections available for reuse. |
| haproxy_server_idle_connections_limit | Limit on the number of available idle connections. |
| haproxy_server_internal_errors_total | Total number of internal errors. |
| haproxy_server_unsafe_idle_connections_current | Current number of unsafe idle connections. |
| haproxy_server_safe_idle_connections_current | Current number of safe idle connections. |
| haproxy_server_used_connections_current | Current number of connections in use. |
| haproxy_server_need_connections_current | Estimated needed number of connections. |
+----------------------------------------------------+---------------------------------------------------------------------------+
Mapping of health check status :

86
contrib/prometheus-exporter/service-prometheus.c
View File

@ -19,6 +19,7 @@
#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>
@ -143,7 +144,12 @@ const int promex_global_metrics[INF_TOTAL_FIELDS] = {
[INF_ACTIVE_PEERS] = INF_CONNECTED_PEERS,
[INF_CONNECTED_PEERS] = INF_DROPPED_LOGS,
[INF_DROPPED_LOGS] = INF_BUSY_POLLING,
[INF_BUSY_POLLING] = 0,
[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
@ -244,6 +250,10 @@ const int promex_front_metrics[ST_F_TOTAL_FIELDS] = {
[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
@ -344,6 +354,10 @@ const int promex_back_metrics[ST_F_TOTAL_FIELDS] = {
[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
@ -438,12 +452,16 @@ const int promex_srv_metrics[ST_F_TOTAL_FIELDS] = {
[ST_F_CACHE_LOOKUPS] = 0,
[ST_F_CACHE_HITS] = 0,
[ST_F_SRV_ICUR] = ST_F_SRV_ILIM,
[ST_F_SRV_ILIM] = 0,
[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 */
@ -508,6 +526,11 @@ const struct ist promex_inf_metric_names[INF_TOTAL_FIELDS] = {
[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 */
@ -600,13 +623,17 @@ const struct ist promex_st_metric_names[ST_F_TOTAL_FIELDS] = {
[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("server_idle_connections_current"),
[ST_F_SRV_ILIM] = IST("server_idle_connections_limit"),
[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 */
@ -671,6 +698,11 @@ const struct ist promex_inf_metric_desc[INF_TOTAL_FIELDS] = {
[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 */
@ -770,6 +802,10 @@ const struct ist promex_st_metric_desc[ST_F_TOTAL_FIELDS] = {
[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. */
@ -834,6 +870,11 @@ const struct ist promex_inf_metric_labels[INF_TOTAL_FIELDS] = {
[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. */
@ -926,6 +967,10 @@ const struct ist promex_st_metric_labels[ST_F_TOTAL_FIELDS] = {
[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. */
@ -990,6 +1035,11 @@ const struct ist promex_inf_metric_types[INF_TOTAL_FIELDS] = {
[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. */
@ -1089,6 +1139,10 @@ const struct ist promex_st_metric_types[ST_F_TOTAL_FIELDS] = {
[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. */
@ -1438,6 +1492,18 @@ static int promex_dump_global_metrics(struct appctx *appctx, struct htx *htx)
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;
@ -2105,6 +2171,18 @@ static int promex_dump_srv_metrics(struct appctx *appctx, struct htx *htx)
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;