<div dir="ltr"><br><div class="gmail_quote">On Thu, Oct 9, 2008 at 4:39 PM, Brendan Oakley <span dir="ltr"><<a href="mailto:gentux2@gmail.com">gentux2@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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Once you corrected the problem with the master, it was up to you to<br>
initiate the AXFR. Either by forcing a retrieve from the slave, or<br>
sending a notify from the master. That should clear that up.<br><div class="Ih2E3d">
<br>
</div>The evidence you have presented would seem to suggest a malfunction,<br>
rather than a limit. There is no reason to expect all 50,000 zones to<br>
be checked at the same time every 30 minutes. I have seen a few cases<br>
where a zone just stopped trying to update, but it was not a server<br>
with very many zones, so it would not seem to have to do with being<br>
able to keep up with the number of domains. I can't seem to find a<br>
reliable way to reproduce it, but my guess is it had to do with being<br>
a "hidden" slave and the master was not reachable when it was trying<br>
to retrieve it. Making strategic use of notifies, or forcing a<br>
retrieval of zones when you know they need it, should take care of<br>
these cases.<br>
<font color="#888888"><br></font></blockquote><div><br>Thanks for the email. I don't explain it to do a check every 30 minutes, I think my expire is 8 hours so even if it doesn't receive a NOTIFY/XFER, it should check the domains every 8 hours. <br>
<br>However, when an existing domain is in the system, my master nameserver will send NOTIFY/XFER requests, but the powerdns slaves are so backed up, they don't do anything about it. <br><br>I can see if I can get further logs of a NOTIFY being sent, and then when the pdns slave grabs it. <br>
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