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 >
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