[Pdns-users] Recursor DNS Cache Question

2011-01-04 Thread Josh Barron
Hello, I have an interesting issue, that hopefully someone can help me resolve. I have 2 DNS servers running PDNS and PDNS-Recursor. Both are slaved to a single master server (doesn't run recursor) using MySQL as a backend. When I query a given domain (neither of these servers are authori

Re: [Pdns-users] Performance of pdns authoritative server on big machines with different backends

2011-01-04 Thread Kenneth Marshall
On Tue, Jan 04, 2011 at 03:50:50PM +0100, Marc Haber wrote: > On Tue, Jan 04, 2011 at 08:38:57AM -0600, Kenneth Marshall wrote: > > Have you tried running multiple PDNS servers at once with possibly > > multiple MySQL backends as needed to scale? > > Isn't threading being used to avoid this? I can

Re: [Pdns-users] Performance of pdns authoritative server on big machines with different backends

2011-01-04 Thread Marc Haber
On Tue, Jan 04, 2011 at 04:39:52PM +0100, Angel Bosch Mora wrote: > i recommend using LDAP because it focuses on many-reads-few-writes and > you can perform multi-mastering easely. Doesn't scale/cache well enough for the database size of the target system. Tried that. Additionally, the data source

Re: [Pdns-users] Performance of pdns authoritative server on big machines with different backends

2011-01-04 Thread Marc Haber
On Tue, Jan 04, 2011 at 09:34:05AM -0500, Mathew Hennessy wrote: > I assume the newer versions of PDNS .debs are using NPTL and not > LinuxThreads? I guess, yes. > Might be worth compiling PDNS fresh just in case.. The binary in use is a fresh compile as mentioned in my orignal article. > Al

Re: [Pdns-users] Performance of pdns authoritative server on big machines with different backends

2011-01-04 Thread Angel Bosch Mora
i recommend using LDAP because it focuses on many-reads-few-writes and you can perform multi-mastering easely. - Missatge original - > On Tue, Jan 04, 2011 at 08:38:57AM -0600, Kenneth Marshall wrote: > > Have you tried running multiple PDNS servers at once with possibly > > multiple MySQ

Re: [Pdns-users] Performance of pdns authoritative server on big machines with different backends

2011-01-04 Thread Marc Haber
On Tue, Jan 04, 2011 at 08:38:57AM -0600, Kenneth Marshall wrote: > Have you tried running multiple PDNS servers at once with possibly > multiple MySQL backends as needed to scale? Isn't threading being used to avoid this? I can try multiple PDNS servers, but configuring multiple MySQL servers mig

Re: [Pdns-users] Performance of pdns authoritative server on big machines with different backends

2011-01-04 Thread Kenneth Marshall
On Tue, Jan 04, 2011 at 03:20:44PM +0100, Marc Haber wrote: > Hi, > > in my current project, I have the task of finding out which > performance to expect from a PowerDNS authoritative server running on > a big machine. > > My test box is an HP DL 360 G6 with two quad core hyperthreading CPUs > (s

[Pdns-users] Performance of pdns authoritative server on big machines with different backends

2011-01-04 Thread Marc Haber
Hi, in my current project, I have the task of finding out which performance to expect from a PowerDNS authoritative server running on a big machine. My test box is an HP DL 360 G6 with two quad core hyperthreading CPUs (so I have 8 real cores with Linux seeing 16 cores) and 48 GB RAM running Debi