Thank you for your reply, yes the same happens with squid 5.8 on dmesg sometimes I also get this kernel panic https://drive.google.com/file/d/1M3bzCASNGITuiTOKykIFhvGS6TvnHoKM/view?usp=s haring Best regards -----Mensagem original----- De: squid-users <squid-users-bounces@xxxxxxxxxxxxxxxxxxxxx> Em Nome De Alex Rousskov Enviada: 11 de abril de 2023 01:22 Para: squid-users@xxxxxxxxxxxxxxxxxxxxx Assunto: Re: idnsSendQuery: Can't send query, no DNS socket! On 4/10/23 17:14, andre.bolinhas@xxxxxxxxxxxxxx wrote: > We have experienced some issue on our squid servers, time to times the > listen port fails and users are unable to connected to the proxy. > We already try use squid 4.17 and squid 5.8 but had the same issue on > both version, you can find I GDrive the extract of the cache.log on > the time of the failure. > 2023/04/10 16:25:54 kid2| Starting Squid Cache version 4.17 for x86_64-pc-linux-gnu... > 2023/04/10 16:26:00 kid2| Shutting down... > 2023/04/10 16:26:00 kid2| Squid Cache (Version 4.17): Exiting normally. > 2023/04/10 16:26:03 kid2| Starting Squid Cache version 4.17 for x86_64-pc-linux-gnu... > 2023/04/10 16:26:15 kid2| Shutting down... > 2023/04/10 16:26:15 kid2| Squid Cache (Version 4.17): Exiting normally. > 2023/04/10 16:26:18 kid2| Starting Squid Cache version 4.17 for x86_64-pc-linux-gnu... Are you starting and shutting down your Squids at a very high frequency? FWIW, older Squids, possibly including Squid v4, are not very good at handling this kind of exercise. > 2023/04/10 16:23:19 kid2| Preparing for shutdown after 221344 requests > 2023/04/10 16:23:19 kid2| Preparing for shutdown after 221344 requests > 2023/04/10 16:23:19 kid2| Preparing for shutdown after 221344 requests > 2023/04/10 16:23:19 kid2| Preparing for shutdown after 221344 requests > 2023/04/10 16:23:19 kid2| Preparing for shutdown after 221344 requests This Squid appears to be seriously confused, stuck in some kind of a shutdown loop. Do you see similar repeated same-kid same-request-count "Preparing for shutdown" messages with Squid v5+? > On the cache log I see to many > idnsSendQuery: Can't send query, no DNS socket! IIRC, at a certain shutdown stage, Squid closes DNS sockets. That prevents Squid from sending DNS queries. I do not know if that shutdown aspect has improved since v4. However, I would be a lot more worried about frequent restarts and shutdown loops(?) at this point. Something unusual and probably bad is going on... HTH, Alex. > And > 2023/04/10 16:25:59 kid4| Waiting 10 seconds for active connections to > finish > 2023/04/10 16:25:59 kid4| Preparing for shutdown after 763 requests > > This is the dns configuration squid/dns.conf > # Return DNS used by the system (means resolv.conf) > client_dst_passthru off > host_verify_strict off > ignore_unknown_nameservers off > dns_retransmit_interval 3 seconds > dns_v4_first on > ipcache_size 16384 > ipcache_low 90 > ipcache_high 95 > fqdncache_size 1024 > positive_dns_ttl 6 hours > negative_dns_ttl 300 seconds > > Resolv.conf > domain xyz.my > search xyz.my > options attempts:2 timeout:2 > nameserver 127.0.0.1 > nameserver 8.8.8.8 > nameserver 1.1.1.1 > > 127.0.0.1 is the unbound internal DNS. > > > _______________________________________________ > squid-users mailing list > squid-users@xxxxxxxxxxxxxxxxxxxxx > http://lists.squid-cache.org/listinfo/squid-users _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users
