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MINOR: contrib/prometheus-exporter: use fill_fe_stats for frontend dump

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use `stats_fill_fe_stats` when possible to avoid duplicating code; make
use of field selector to get the needed field only.

this should not introduce any difference of output.

Signed-off-by: William Dauchy <wdauchy@gmail.com>
This commit is contained in:
William Dauchy 2021-01-17 18:27:46 +01:00 committed by Christopher Faulet
parent 0ef54397b0
commit b9577450ea
3 changed files with 18 additions and 121 deletions
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136
contrib/prometheus-exporter/service-prometheus.c
View File

@ -1307,6 +1307,7 @@ static int promex_dump_front_metrics(struct appctx *appctx, struct htx *htx)
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));
struct field *stats = stat_l[STATS_DOMAIN_PROXY];
int ret = 1;
while (appctx->st2 && appctx->st2 < ST_F_TOTAL_FIELDS) {
@ -1317,144 +1318,40 @@ static int promex_dump_front_metrics(struct appctx *appctx, struct htx *htx)
if (px->disabled || px->uuid <= 0 || !(px->cap & PR_CAP_FE))
goto next_px;
if (!stats_fill_fe_stats(px, stats, ST_F_TOTAL_FIELDS, &(appctx->st2)))
return -1;
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);
metric = stats[appctx->st2];
break;
case ST_F_HRSP_2XX:
case ST_F_HRSP_3XX:
case ST_F_HRSP_4XX:
case ST_F_HRSP_5XX:
case ST_F_HRSP_OTHER:
if (px->mode != PR_MODE_HTTP)
goto next_px;
metric = stats[appctx->st2];
appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
break;
default:
goto next_metric;
metric = stats[appctx->st2];
}
if (!promex_dump_metric(appctx, htx, prefix, &metric, &out, max))
@ -1462,7 +1359,6 @@ static int promex_dump_front_metrics(struct appctx *appctx, struct htx *htx)
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];

1
include/haproxy/stats.h
View File

@ -38,6 +38,7 @@ extern const struct name_desc info_fields[];
extern const char *stat_status_codes[];
extern struct applet http_stats_applet;
extern THREAD_LOCAL struct field info[];
extern THREAD_LOCAL struct field *stat_l[];
struct htx;
int stats_putchk(struct channel *chn, struct htx *htx, struct buffer *chk);

2
src/stats.c
View File

@ -266,7 +266,7 @@ static struct name_desc *stat_f[STATS_DOMAIN_COUNT];
static size_t stat_count[STATS_DOMAIN_COUNT];
/* one line for stats */
static THREAD_LOCAL struct field *stat_l[STATS_DOMAIN_COUNT];
THREAD_LOCAL struct field *stat_l[STATS_DOMAIN_COUNT];
/* list of all registered stats module */
static struct list stats_module_list[STATS_DOMAIN_COUNT] = {