On 5/2/2017 9:31 AM, Dave Jones wrote:
On 5/2/17 8:20 AM, Kevin A. McGrail wrote:
On 5/2/2017 9:14 AM, Dave Jones wrote:
My plan is to setup a script on sa-vm1.apache.org that would run
daily and email if there are record differences since we don't have
control of the public DNS servers.
I seem to remember that they might use cron syncs and not respond to
notifies so expect FPs.
I realize there are some timings involved based on when a change is
made but we shouldn't get FPs two days in a row. They should never
get more than 24 hours behind. If they are running their cron jobs
every 15 minutes per your notes/previous email, then the average is
only going to be 7-8 minutes behind. The odds of an FP in this case
should be pretty low. If this becomes an issue, I can add logic to
the script to detect different serials and do a delayed retry an hour
later or something.
That might not be accurate built on an assumption that they have 15
minute crons. Did I say 15 minutes?
We publish releases every day so the zone changes every day. I do not
know how often they run crons but the lag was not like it is with my
name servers with slaves/public/hiddens with notify and fairly instant
updates.
We can work to improve it if Hyperreal and Sonic are game but I'm
worried you are just going to have a script always saying we are out of
sync.
--
Kevin A. McGrail
Asst. Treasurer, Apache Software Foundation
Chair Emeritus Apache SpamAssassin Project
