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Add metric for queries which never see an answer.

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This commit is contained in:
Simon Kelley
2022-09-15 22:06:39 +01:00
parent 9a9f6e147c
commit 7a74037267
3 changed files with 4 additions and 0 deletions
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2
src/forward.c
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@@ -2790,6 +2790,7 @@ static struct frec *get_new_frec(time_t now, struct server *master, int force)
{
if (difftime(now, f->time) >= 4*TIMEOUT)
{
daemon->metrics[METRIC_DNS_UNANSWERED_QUERY]++;
free_frec(f);
target = f;
}
@@ -2811,6 +2812,7 @@ static struct frec *get_new_frec(time_t now, struct server *master, int force)
if (!target && oldest && ((int)difftime(now, oldest->time)) >= TIMEOUT)
{
/* can't find empty one, use oldest if there is one and it's older than timeout */
daemon->metrics[METRIC_DNS_UNANSWERED_QUERY]++;
free_frec(oldest);
target = oldest;
}

1
src/metrics.c
View File

@@ -23,6 +23,7 @@ const char * metric_names[] = {
"dns_auth_answered",
"dns_local_answered",
"dns_stale_answered",
"dns_unanswered",
"bootp",
"pxe",
"dhcp_ack",

1
src/metrics.h
View File

@@ -22,6 +22,7 @@ enum {
METRIC_DNS_AUTH_ANSWERED,
METRIC_DNS_LOCAL_ANSWERED,
METRIC_DNS_STALE_ANSWERED,
METRIC_DNS_UNANSWERED_QUERY,
METRIC_BOOTP,
METRIC_PXE,
METRIC_DHCPACK,