In message <13355440-2405-4868-b90c-6567ccb9d...@sonic.net>, Charles Musser wri tes: > We are experiencing a delay of approximately 9 minutes between the time a zon > e is changed on our DNS master (via nsupdate) and the time at which the NOTIF > Y is sent to slaves.
Adjust serial-query-rate. This also controls the notify rate in BIND 9.9. A seperate control "notify-rate" is coming in BIND 9.11. > We've turned up logging on the master and some slaves, t > hen watched for messages regarding a test zone. On the master, an update caus > es a log message indicating that the NOTIFY has been queued. Several minutes > later, there are additional messages indicating that a NOTIFY has been sent a > nd, on the slave, we see the corresponding NOTIFY receive log message, follow > ed by the slave sending a transfer. After this, the slave has the updated zon > e data. > > The master runs BIND 9.9.7 and is authoritative for ~70000 zones. There are a > pproximately 20 slaves. ON the master, "rndc status" reports the count "xfers > deferred" is always near 300 and the count of "xfers running" is always 10. > Given that, we suspected that a backlog of transfers was causing the delay, s > o we tried increasing the transfer-out from the default (10) to 75. That didn > 't increase the number of "xfers running", nor make the delay go away. > > We don't know when the behavior started. The master server was upgraded from > 9.7.3 to 9.9.7 a couple of weeks back, but no one noticed a the delay until t > oday. We didn't see anything obvious in the BIND change log regarding changes > in this area. > > Chuck > _______________________________________________ > Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe > from this list > > bind-users mailing list > bind-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/bind-users -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
