On 04.12.2011 21:44, Grant Keller wrote:
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?
How do you create the 19000 queries? Every query starting a new TCP
connection? Reusing TCP connections for further queries?
How can verify the number of established TCP connections during timeout
phases with (Linux): netstat -n|grep :53|wc -l
regards
Klaus
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