Search Again: Re: some problems with qdns 3.5 (crashes, load balancing) From: Men & Mice Support Date: Thursday, September 6, 2001 Time: 2:26:40 pm There's a memory leak in QuickDNS Remote 3.5. It's been fixed in QuickDNS 3.5.1 (along with several other bugfixes). If a query is able to crash the primary server, and if that query is then sent to your secondary server (e.g. because the workstation that sent it has both listed in its TCP/IP settings), the secondary is likely to crash as well. Try upgrading to 3.5.1, and let us know if you continue to have these problems. Regarding the load balancing question, how are you testing? Are you using the load balance testing utility? It is the most accurate way to test a load balance setup, since it avoids the problem of cached answers. ____________________________________________________________________ Chris Buxton Men & Mice cbuxton@menandmice.com We Make DNS Easy! At 8:22 PM +0200 9/6/01, Matthias Gruber wrote: >hello, > >recently i did the upgrade from qdns 3.0 to 3.5. qdns server (3.0.1r2) and >the remote agent and the load balancer are running on 2 motorola starmax >adt4160 with 128mb ram and macos 9.1 with latest updates. > >the primary qdns machine is crashing very often with error 1 or 2. qdns is >the only application on these computers (only autoboot and a retrospect are >running too). > >the secondary crashes more seldom but sometime shortly after the primary. > >crashes do not occur while backing up, so i think retrospect does not >interfere here. i think the macos is also clear. > >i did some tests and found that increasing memory for the remote agent and >the load balancer increases the time until the next crash occurs. with the >standard memory settings crashess occur a few times a day, now i have >8192kbyte set and the primary is up for nearly two days now... > >both machines were quite stable with qdns 3.0. > >i would be glad to provide more information. > > > >another question: i am doing load balancing for our webservers. one server >is set to 9 the other to 1 so i expected to see every 10th packet going to >the secondary webserver. the load balancer tools shows me only the primary >server. when i stop the primary server then i get all traffic to the >secondary, when i start the primary again, all traffic goes to it again. > >i checked if all qdns programs are running on both servers, and they do. > >bye, > > Matthias Gruber > >----------------------------------------------------- >(Networking, Technical Support) > >WOLNET Internet Service Provider > Autorisierter Apple Haendler > >Hinterstrasse 21 Tel. 0271 2361830 >D-57072 Siegen Fax. 0271 3331184 > >mailto: matthias.gruber@wolnet.de >internet: http://www.wolnet.de/

Messages In This Thread: some problems with qdns 3.5 (crashes, load balancing) by Matthias Gruber on Sep 6, 2001 at 11:23:43 am Re: some problems with qdns 3.5 (crashes, load balancing) by Men & Mice Support on Sep 6, 2001 at 2:26:40 pm Re: some problems with qdns 3.5 (crashes, load balancing) by cali on Sep 6, 2001 at 2:42:28 pm Re: some problems with qdns 3.5 (crashes, load balancing) by Men & Mice Support on Sep 6, 2001 at 2:58:06 pm Re: some problems with qdns 3.5 (crashes, load balancing) by cali on Sep 6, 2001 at 3:07:01 pm Re: some problems with qdns 3.5 (crashes, load balancing) by Men & Mice Support on Sep 6, 2001 at 4:14:56 pm Re: some problems with qdns 3.5 (crashes, load balancing) by Peter Schumacher on Sep 6, 2001 at 4:22:43 pm Re: some problems with qdns 3.5 (crashes, load balancing) by Matthias Gruber on Sep 9, 2001 at 1:49:55 am