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Adjust UDP timeouts used in zone maintenance

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Drop timeout before resending a UDP request from 15 seconds to 5
seconds and add 1 second to the total time to allow for the reply
to the third request to arrive.  This will speed up the time it
takes for named to recover from a lost packet when refreshing a
zone and for it to determine that a primary is down.

(cherry picked from commit 29f399797d)
This commit is contained in:
Mark Andrews 2023-08-16 14:40:12 +10:00
parent f82844aee1
commit 306ee4cb28
1 changed files with 11 additions and 11 deletions
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22
lib/dns/zone.c
View file

@ -12701,14 +12701,14 @@ notify_send_toaddr(isc_task_t *task, isc_event_t *event) {
result = ISC_R_NOTIMPLEMENTED;
goto cleanup_key;
}
timeout = 15;
timeout = 5;
if (DNS_ZONE_FLAG(notify->zone, DNS_ZONEFLG_DIALNOTIFY)) {
timeout = 30;
}
result = dns_request_create(notify->zone->view->requestmgr, message,
&src, &notify->dst, options, key,
timeout * 3, timeout, 2, notify->zone->task,
notify_done, notify, &notify->request);
result = dns_request_create(
notify->zone->view->requestmgr, message, &src, &notify->dst,
options, key, timeout * 3 + 1, timeout, 2, notify->zone->task,
notify_done, notify, &notify->request);
if (result == ISC_R_SUCCESS) {
if (isc_sockaddr_pf(&notify->dst) == AF_INET) {
inc_stats(notify->zone,
@ -14668,13 +14668,13 @@ again:
}
zone_iattach(zone, &dummy);
timeout = 15;
timeout = 5;
if (DNS_ZONE_FLAG(zone, DNS_ZONEFLG_DIALREFRESH)) {
timeout = 30;
}
result = dns_request_create(
zone->view->requestmgr, message, &zone->sourceaddr,
&zone->primaryaddr, options, key, timeout * 3, timeout, 2,
&zone->primaryaddr, options, key, timeout * 3 + 1, timeout, 2,
zone->task, refresh_callback, zone, &zone->request);
if (result != ISC_R_SUCCESS) {
zone_idetach(&dummy);
@ -14924,7 +14924,7 @@ ns_query(dns_zone_t *zone, dns_rdataset_t *soardataset, dns_stub_t *stub) {
POST(result);
goto cleanup;
}
timeout = 15;
timeout = 5;
if (DNS_ZONE_FLAG(zone, DNS_ZONEFLG_DIALREFRESH)) {
timeout = 30;
}
@ -14942,7 +14942,7 @@ ns_query(dns_zone_t *zone, dns_rdataset_t *soardataset, dns_stub_t *stub) {
result = dns_request_create(
zone->view->requestmgr, message, &zone->sourceaddr,
&zone->primaryaddr, DNS_REQUESTOPT_TCP, key, timeout * 3,
&zone->primaryaddr, DNS_REQUESTOPT_TCP, key, timeout * 3 + 1,
timeout, 2, zone->task, stub_callback, cb_args, &zone->request);
if (result != ISC_R_SUCCESS) {
zone_debuglog(zone, me, 1, "dns_request_create() failed: %s",
@ -21248,11 +21248,11 @@ checkds_send_toaddr(isc_task_t *task, isc_event_t *event) {
dns_zone_log(checkds->zone, ISC_LOG_DEBUG(3),
"checkds: create request for DS query to %s", addrbuf);
timeout = 15;
timeout = 5;
options |= DNS_REQUESTOPT_TCP;
result = dns_request_create(
checkds->zone->view->requestmgr, message, &src, &checkds->dst,
options, key, timeout * 3, timeout, 2, checkds->zone->task,
options, key, timeout * 3 + 1, timeout, 2, checkds->zone->task,
checkds_done, checkds, &checkds->request);
if (result != ISC_R_SUCCESS) {
dns_zone_log(checkds->zone, ISC_LOG_DEBUG(3),