[Pdns-users] Limit on TCP querys.

Grant Keller gkeller at corp.sonic.net
Sun Dec 4 20:44:35 UTC 2011

On 12/03/2011 10:40 AM, Peter van Dijk wrote:
> Hello Grant,
> On Dec 3, 2011, at 1:14 , Grant Keller wrote:
>> When I run a large number of querys against my PDNS 3.0 auth server, I am seeing a number of timeouts on my querys. For example, if I run 19000 tcp querys at 5-6 querys per second, I end up with about 400 querys failed due to timeouts.  Most of the time outs occur in batches, where I see all querys or every other query timeout. Is that simply too many tcp querys for PDNS to handle?
> Depending on how you are doing this, you may be hitting the max-tcp-connections default, which is 10. If you want to do lots of TCP queries, I suggest increasing max-tcp-connections a lot.
> Kind regards,
> Peter van Dijk

The max-tcp-connection was set to 1000, and figured that would be high 
enough, should I increase the limit further?

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