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WOW! Thanks for the info Bert :) <br><br>The Debian server that hosts PDNS Cursor doesn't apply any iptable rule... but this server is behind a firewall (MikorTik Router) and this firewall has tracking feature turned on...maybe because of that!!! and my uplstream connection is only 1 Mbps full fiber.<br><br>Anyways, my concern is to know that if I did the tweaks for the file descriptor mentioned earlier and run dpkg -i (yourlastestversion3.3-1).deb and fix the max-cache-entries and packet-entries would be enough??<br><br><br>> Date: Mon, 7 Feb 2011 11:37:46 +0100<br>> From: bert.hubert@netherlabs.nl<br>> To: maroon_ibrahim@hotmail.com<br>> CC: pdns-users@mailman.powerdns.com<br>> Subject: Re: [Pdns-users] PDNS Recursor on Debian / Low performance !!!URGENT!!!!<br>> <br>> On Mon, Feb 07, 2011 at 09:38:42AM +0000, Maroon Ibrahim wrote:<br>> > all-outqueries 501740<br>> > outgoing-timeouts 352596<br>> > throttled-outqueries 76300<br>> <br>> This mostly tells the story. Your pdns_recursor has problems talking to the<br>> network at sufficient speed. Either this is caused by you requiring too much<br>> bandwidth, or by a firewall that gets upset by all the different UDP<br>> 'sessions' it sees.<br>> <br>> Of 501k queries, 428k did not get answers. 352k were direct timeouts, 76k<br>> were not even sent out by PowerDNS because it had a 'cached timeout'.<br>> <br>> > over-capacity-drops 31945<br>> <br>> You should increase 'max-mthreads' beyond 1024 after you have your network<br>> fixed, you dropped 31945 queries because 1024 were already running.<br>> <br>> Fixing the network needs to happen upstream, this can't be done by PowerDNS.<br>> <br>> Good luck!<br>> <br>> Bert<br> </body>
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