On Fri, Jul 06, 2012 at 02:18:31AM +0200, Anand Buddhdev wrote:
> Thanks for this suggestion James. I found that calling the to_wire()
> method of each message is about as expensive as sending the update, so I
> don't gain much.
I was suggesting not repeatedly calling to_wire() on the message object, rather
using to_wire() once on each RR set as you add it to the message. Something
like:
zone = 'foo.com.'
u = dns.update.Update(zone)
base_size = len(u.to_wire())
for rrset in stuff_to_update:
rrset_size = len(rrset.to_wire())
if size + rrset_size > max_size:
send_update(u)
u = dns.update.Update(zone)
size = base_size
u.add(rrset.name, *args)
size += rrset_size
That's pretty academic now as you've found a better solution :)
> I'm now investigating batching over TCP.
[snip]
> Are there any classes in dnspython for doing this already? I can't seem
> to find any, or perhaps I am misreading the documentation.
None that I know of. Care to write them and submit a patch? ;)
james
--
Times flies like an arrow. Fruit flies like bananas.
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