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MINOR: stats: report the boot time in "show info" 

Just like we have the uptime in "show info", let's add the boot time.
It's trivial to collect as it's just the difference between the ready
date and the start date, and will allow users to monitor this element
in order to take action before it starts becoming problematic. Here
the boot time is reported in milliseconds, so this allows to even
observe sub-second anomalies in startup delays.
This commit is contained in:
Willy Tarreau 2023-05-17 09:05:20 +02:00
parent da4aa6905c
commit 5723b382ed
2 changed files with 6 additions and 0 deletions
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1
include/haproxy/stats-t.h
View File

@ -345,6 +345,7 @@ enum info_field {
INF_TAINTED,
INF_WARNINGS,
INF_MAXCONN_REACHED,
INF_BOOTTIME_MS,
/* must always be the last one */
INF_TOTAL_FIELDS

5
src/stats.c
View File

@ -158,6 +158,7 @@ const struct name_desc info_fields[INF_TOTAL_FIELDS] = {
[INF_TAINTED] = { .name = "Tainted", .desc = "Experimental features used" },
[INF_WARNINGS] = { .name = "TotalWarnings", .desc = "Total warnings issued" },
[INF_MAXCONN_REACHED] = { .name = "MaxconnReached", .desc = "Number of times an accepted connection resulted in Maxconn being reached" },
[INF_BOOTTIME_MS] = { .name = "BootTime_ms", .desc = "How long ago it took to parse and process the config before being ready (milliseconds)" },
};
const struct name_desc stat_fields[ST_F_TOTAL_FIELDS] = {
@ -4630,6 +4631,7 @@ int stats_fill_info(struct field *info, int len, uint flags)
uint64_t glob_out_bytes, glob_spl_bytes, glob_out_b32;
uint up_sec, up_usec;
ullong up;
ulong boot;
int thr;
#ifdef USE_OPENSSL
@ -4654,6 +4656,8 @@ int stats_fill_info(struct field *info, int len, uint flags)
up_sec = ns_to_sec(up);
up_usec = (up / 1000U) % 1000000U;
boot = tv_ms_remain(&start_date, &ready_date);
if (len < INF_TOTAL_FIELDS)
return 0;
@ -4748,6 +4752,7 @@ int stats_fill_info(struct field *info, int len, uint flags)
chunk_appendf(out, "%#x", get_tainted());
info[INF_WARNINGS] = mkf_u32(FN_COUNTER, HA_ATOMIC_LOAD(&tot_warnings));
info[INF_MAXCONN_REACHED] = mkf_u32(FN_COUNTER, HA_ATOMIC_LOAD(&maxconn_reached));
info[INF_BOOTTIME_MS] = mkf_u32(FN_DURATION, boot);
return 1;
}