Hi guys,
I am experiencing a very strange problem.
Under heavy load, Bind becomes extremely load above a certain number of Qps
but, if i query an alias IP address (where normally queries don't arrive),
Bind answers immediately.
I was wondering if there is a kind of limitation on a single IP addr
You really need to read up on queuing theory. The fairest way to queue is to
have a single queue and to process off the end of that. Unfortunately
interfaces
don’t form a single queue, they form multiple queues. This sort of behaviour
is expected with multiple queues. The main address is the l
Dear Mark,
excellent reply, thank you.
I found the problem: for legacy compatibility reason, i still need to
use the old Bind-DLZ Driver, with Postgresql.
I have remove the Driver, used for SQL-filtering reasons, Bind work
like a charm.
I can remove DLZ for "emergencies periods", but i still need
Am 21.05.2019 um 22:31 schrieb Ict Security:
Under heavy load, Bind becomes extremely load above a certain number of
Qps but, if i query an alias IP address (where normally queries don't
arrive), Bind answers immediately.
btw - how high is the "extremely load"?
Klaus
_
Dear Klaus,
>>btw - how high is the "extremely load"?
Without old DLZ module, Bind 9.12 scales to thousands and thousands of queries.
If i include old DLZ module, with postgres, over about 1000 Qps Bind
start to slow down visibly,
Do you think the old DLZ-Postgreqsl module might the bottleneck?
A
On Wed, May 22, 2019 at 11:39:04PM +0200, Ict Security wrote:
> Dear Klaus,
>
> >>btw - how high is the "extremely load"?
> Without old DLZ module, Bind 9.12 scales to thousands and thousands of
> queries.
> If i include old DLZ module, with postgres, over about 1000 Qps Bind
> start to slow down
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