--- nsd-3.0.4/nsd-notify.c 2006-09-01 23:22:14.000000000 +0200
+++ nsd-test/nsd-notify.c 2007-01-27 16:17:42.000000000 +0100
@@ -69,8 +69,8 @@
notify_host(int udp_s, struct query* q, struct query *answer,
struct addrinfo* res, const char* addrstr)
{
- int timeout_retry = 5; /* seconds */
- int num_retry = 15; /* times to try */
+ int timeout_retry = 1; /* seconds */
+ int num_retry = 6; /* times to try */
fd_set rfds;
struct timeval tv;
int retval = 0;
@@ -115,6 +115,7 @@
if (retval == 1) {
got_ack = 1;
}
+ timeout_retry = timeout_retry*2;
}
/* receive reply */
Result:
rasmus:~/src/nsd-3.0.1 mansaxel$ ./nsd-notify -z namn.se 169.254.47.12
[1169911073] nsd-notify[5644]: warning: timeout (1 s) expired, retry notify
to 169.254.47.12.
[1169911075] nsd-notify[5644]: warning: timeout (2 s) expired, retry notify
to 169.254.47.12.
[1169911079] nsd-notify[5644]: warning: timeout (4 s) expired, retry notify
to 169.254.47.12.
[1169911087] nsd-notify[5644]: warning: timeout (8 s) expired, retry notify
to 169.254.47.12.
[1169911103] nsd-notify[5644]: warning: timeout (16 s) expired, retry
notify to 169.254.47.12.
[1169911135] nsd-notify[5644]: warning: error: failed to send notify to
169.254.47.12.
I think, after very brief testing, that this is nicer to wait for than 15*5
seconds.