the important keyword is "NTLM"! without external auth helper squid 3.4 is working well. as soon as the external helper is active, cpu rises to 100%. nothing with workers etc. even the fakehelper is not working. just to make sure, that the problem is not NTLM, samba, winbind, AD etc. see http://bugs.squid-cache.org/show_bug.cgi?id=3997 > -----Ursprüngliche Nachricht----- > Von: squid-users [mailto:squid-users-bounces@xxxxxxxxxxxxxxxxxxxxx] Im > Auftrag von Eliezer Croitoru > Gesendet: Donnerstag, 23. Oktober 2014 11:19 > An: squid-users@xxxxxxxxxxxxxxxxxxxxx > Betreff: Re: 3.3.x -> 3.4.x: huge performance regression > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hey, > > What is the network load? how many users? > Have you been using workers at all in the past? > Can you see the avg requests per second on the cache manager page? > > Eliezer > > On 10/22/2014 09:02 AM, Eugene M. Zheganin wrote: > > Hi. > > > > I was using the 3.4.x branch for quite some time, it was working > > just fine on small installations. Yesterday I upgraded my largest > > cache installation from 3.3.13 to 3.4.8 (same config, diskd, > > NTLM/GSS-SPNEGO auth helpers, external helpers). Today morning I > > noticed that squid is spiking to 100% of CPU and almost isn't > > serving any traffic. Restart didn't help, squid is serving pages > > while continuing to consume CPU, load grows, until it's at 100%, > > and after some time my users are unable to open any page from > > Internet. This is sad, so I downgraded to 3.3.13. CPU consumption > > went back to 20-35% and everything is back to normal. > > > > In order to understand what's happening I did some dtrace profiling > > to see what is squid busy with, taking the consideration, that > > measuring the same amount of connect()/socket() syscalls should > > give same amount of squid work, but the results were totally > > different on one number of such syscalls. > > > > Anyone to comment ? > > > > Thanks. Eugene. _______________________________________________ > > squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx > > http://lists.squid-cache.org/listinfo/squid-users > > > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1 > > iQEcBAEBAgAGBQJUSMf7AAoJENxnfXtQ8ZQU/KwH/icRcMBoEA4Y8u3/inbnvSiT > CMPX6On9CO+RJeXlDGcAMfbYofZixB8zR5BuBTOsNS35moqCtHmlzZYtoGxkLGLx > RU6KKEhLGuGNyFCnyQx/oh9hcG90PSnaFnsp0m3vClcFtxv3kcdn944VS8hPtKWC > MQw7G8KzXwu7RmTaP5nk+EGNX3JAn8GlQaINX6G4zKeujqwrK954KORPMt0S53iQ > P7k6rq+ckPDgTIHuK4L+eMCka22y0z2FTo41jxSXK7J6w3GnWUsvwA22yYo6BV1h > +4DjvvtoJA3nNuFtXYxXCcBLMXcwk953o2uQKGkqOmlLGg660Bu9tCTBFAvaQsg= > =79iu > -----END PGP SIGNATURE----- > _______________________________________________ > 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
