At the moment I'm limited to using 2 UDP listeners per interface. When stress testing I can see that only 2 out of 4 CPUs are being used, I'm guessing because I'm limited to 2 listeners. Any suggestions for what could be limiting BIND from using a higher number of UDP listeners?
On Fri, Jul 18, 2014 at 11:46 AM, Matthew Calder <cald...@usc.edu> wrote: > Hi Cathy, > > I think you may be correct. I am running these in cloud hosted VMs. I > found that the problem is difficult to reproduce with a 2 core instance. > With a 4 core instance it only happens with reload/reconfig and with 8 > cores it doesn't get past start up. From the VM's perspective, I only have > 2 interfaces, lo and eth0. > > Here is what shows up in the logs for BIND 9.9.5 on start. > > Jul 18 18:42:39 named[11861]: adjusted limit on open files from 4096 to > 1048576 > Jul 18 18:42:39 named[11861]: found 4 CPUs, using 4 worker threads > Jul 18 18:42:39 named[11861]: using 4 UDP listeners per interface > Jul 18 18:42:39 named[11861]: using up to 4096 sockets > Jul 18 18:42:39 named[11861]: loading configuration from > '/etc/bind/named.conf' > Jul 18 18:42:45 named[11861]: reading built-in trusted keys from file > '/etc/bind/bind.keys' > Jul 18 18:42:45 named[11861]: using default UDP/IPv4 port range: [1024, > 65535] > Jul 18 18:42:45 named[11861]: using default UDP/IPv6 port range: [1024, > 65535] > Jul 18 18:42:45 named[11861]: listening on IPv6 interfaces, port 53 > Jul 18 18:42:45 named[11861]: listening on IPv4 interface lo, 127.0.0.1#53 > Jul 18 18:42:45 named[11861]: listening on IPv4 interface eth0, > 100.67.236.8#53 > > > > On Fri, Jul 18, 2014 at 8:20 AM, Cathy Almond <cat...@isc.org> wrote: > >> It might have something to do with the number of CPUs that named detects >> when it starts, which (by default) drives how many listening tasks it >> starts per listening interface. >> >> BIND 9.10 changed the defaults slightly, but you can also control how >> many listening tasks per interface using the -U option. >> >> Is there anything else unusual in your test set-up? I notice you said >> that you have 500 views - do you also have a large number of virtual >> interfaces, each with their own listen-on? >> >> >> On 18/07/2014 07:06, Matthew Calder wrote: >> > Thanks Mark. I tried building with increased ISC_SOCKET_MAXSOCKETS with >> > BIND 9.9.5 but I kept seeing the same error. Eventually, I tried BIND >> > 9.10.0 and the error no longer happens. >> > >> > >> > On Wed, Jul 16, 2014 at 3:56 PM, Mark Andrews <ma...@isc.org >> > <mailto:ma...@isc.org>> wrote: >> > >> > >> > You need to increase ISC_SOCKET_MAXSOCKETS. >> > >> > e.g. >> > >> > ./configure STC_CDEFINES=-DISC_SOCKET_MAXSOCKETS=21000 >> > >> > In message >> > <cancffbvv2wktdc-dtzzcecc4gif1nfvgqvq-kxqgptex6++...@mail.gmail.com >> > <mailto: >> cancffbvv2wktdc-dtzzcecc4gif1nfvgqvq-kxqgptex6%2b%2b...@mail.gmail.com>> >> > , Matthew Calder writes: >> > > --===============1218088129802327245== >> > > Content-Type: multipart/alternative; >> > boundary=089e013a044a72db8004fe551784 >> > > >> > > --089e013a044a72db8004fe551784 >> > > Content-Type: text/plain; charset=UTF-8 >> > > >> > > I'm completely new to BIND configuration. I'm running on BIND >> > > 9.9.5-3-Ubuntu (Extended Support Version) on Ubuntu 14.04 and >> > seeing this >> > > error on startup/reload. >> > > >> > > Jul 15 19:20:57 named[1978]: server.c:2772: unexpected error: >> > > Jul 15 19:20:57 named[1978]: unable to obtain neither an IPv4 nor >> > an IPv6 >> > > dispatch >> > > >> > > This happens if I do rndc reload/reconfig. My named.conf.local has >> > > many around 500 views and large match-client ACLs because I am >> > > experimenting with a global split-horizon configuration. I would >> > appreciate >> > > any help. >> > > >> > > --089e013a044a72db8004fe551784 >> > > Content-Type: text/html; charset=UTF-8 >> > > Content-Transfer-Encoding: quoted-printable >> > > >> > > <div dir=3D"ltr"><div><span >> > style=3D"color:windowtext;line-height:17px;font= >> > > -family:Calibri,Sans-Serif;font-size:11pt"><span >> > style=3D"background-color:= >> > > inherit">I'm completely new to BIND configuration. I'm >> > running on <= >> > > span >> > >> style=3D"color:windowtext;line-height:17px;font-family:Calibri,Sans-Se= >> > > rif;font-size:11pt"><span style=3D"background-color:inherit">BIND >> > 9.9.5-3-U= >> > > buntu (Extended Support Version) on Ubuntu 14.04 and seeing this >> > error on s= >> > > tartup/reload.</span></span></span></span></div> >> > > <div><span >> > style=3D"color:windowtext;line-height:17px;font-family:Calibri,S= >> > > ans-Serif;font-size:11pt"><span >> > style=3D"background-color:inherit"></span><= >> > > /span><br></div><div><span >> > style=3D"color:windowtext;line-height:17px;font-= >> > > family:Calibri,Sans-Serif;font-size:11pt"><span >> > style=3D"background-color:i= >> > > nherit">Jul 15 19:20:57</span><span >> > style=3D"background-color:inherit"> nam= >> > > ed[1978]: server.c:2772: unexpected error:</span></span><span >> > style=3D"line= >> > > >> > >> -height:17px;font-family:Calibri,Sans-Serif;font-size:11pt"><span>=C2=A0</s= >> > > pan><br> >> > > </span><span >> > style=3D"color:windowtext;line-height:17px;font-family:Calibri= >> > > ,Sans-Serif;font-size:11pt"><span >> > style=3D"background-color:inherit">Jul 15= >> > > 19:20:57 </span><span >> > style=3D"background-color:inherit">named[1978]: unab= >> > > le to obtain neither an IPv4 nor an IPv6 >> dispatch</span></span></div> >> > > <div><span >> > style=3D"color:windowtext;line-height:17px;font-family:Calibri,S= >> > > ans-Serif;font-size:11pt"><span >> > style=3D"background-color:inherit"></span><= >> > > /span><br></div><div><span >> > style=3D"color:windowtext;line-height:17px;font-= >> > > family:Calibri,Sans-Serif;font-size:11pt"><span >> > style=3D"background-color:i= >> > > nherit"><span >> > style=3D"color:windowtext;line-height:17px;font-family:Calibr= >> > > i,Sans-Serif;font-size:11pt"><span >> > style=3D"background-color:inherit">This = >> > > happens if I do rndc reload/reconfig. >> > </span></span></span></span><span sty= >> > > >> > >> le=3D"color:windowtext;line-height:17px;font-family:Calibri,Sans-Serif;font= >> > > -size:11pt"><span style=3D"background-color:inherit">My >> > named.conf.local ha= >> > > s many=C2=A0around=C2=A0500 views=C2=A0and large match-client ACLs >> > because = >> > > I am experimenting with a global split-horizon configuration. I >> > would appre= >> > > ciate any help.</span></span></div> >> > > </div> >> > > >> > > --089e013a044a72db8004fe551784-- >> > > >> > > --===============1218088129802327245== >> > > Content-Type: text/plain; charset="us-ascii" >> > > MIME-Version: 1.0 >> > > Content-Transfer-Encoding: 7bit >> > > Content-Disposition: inline >> > > >> > > _______________________________________________ >> > > Please visit https://lists.isc.org/mailman/listinfo/bind-users to >> > unsubscribe >> > > from this list >> > > >> > > bind-users mailing list >> > > bind-users@lists.isc.org <mailto:bind-users@lists.isc.org> >> > > https://lists.isc.org/mailman/listinfo/bind-users >> > > --===============1218088129802327245==-- >> > -- >> > Mark Andrews, ISC >> > 1 Seymour St., Dundas Valley, NSW 2117, Australia >> > PHONE: +61 2 9871 4742 <tel:%2B61%202%209871%204742> >> > INTERNET: ma...@isc.org <mailto:ma...@isc.org> >> > >> > >> > >> > >> > _______________________________________________ >> > Please visit https://lists.isc.org/mailman/listinfo/bind-users to >> unsubscribe from this list >> > >> > bind-users mailing list >> > bind-users@lists.isc.org >> > https://lists.isc.org/mailman/listinfo/bind-users >> > >> >> _______________________________________________ >> Please visit https://lists.isc.org/mailman/listinfo/bind-users to >> unsubscribe from this list >> >> bind-users mailing list >> bind-users@lists.isc.org >> https://lists.isc.org/mailman/listinfo/bind-users >> > >
_______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
