* Alex Rousskov <rousskov@xxxxxxxxxxxxxxxxxxxxxxx>: > > 1502192404.759 000000 10.43.25.85 NONE/000 0 NONE error:transaction-end-before-headers - HIER_NONE/- - accessRule=- - > > > Some statistics: > > ================ > > > > File error total lines > > access.log-20170716 49627 2211867 > > access.log-20170717 359333 8314838 > > access.log-20170718 395747 8805268 > > access.log-20170719 371742 9443484 > > access.log-20170720 365298 9095541 > > access.log-20170721 325402 7264478 > > access.log-20170722 79154 2188264 > > access.log-20170723 56376 2540638 > > access.log-20170724 337140 8791890 > > access.log-20170725 349014 8540723 > > access.log-20170726 329261 8341711 > > access.log-20170727 355226 8780064 > > access.log-20170728 293500 8062144 3.6% > > access.log-20170729 46597 2233428 2.1% > > access.log-20170730 60287 2318682 2.6% > > access.log-20170731 330181 8568843 3.8% > > access.log-20170801 260704 7855986 3.3% > > access.log-20170802 295127 7099761 4.1% > > access.log-20170803 330608 8036505 4.1% > > access.log-20170804 234662 7040284 3.3% > > access.log-20170805 42260 1987658 2.1% > > access.log-20170806 36579 1931714 1.9% > > access.log-20170807 303962 7472408 4% > > Interesting: Higher traffic volumes result in a higher portion of > "empty" connections. Do you know what changed on 20170728? A Squid > upgrade or a perhaps configuration change? Uhh, unsure. > > I'm using squid-5.0.0-20170709-r15238. Is there any way of finding out > > what kind of queries cause this? > > I would not call these connections without any headers/bytes "queries", > but if you want to learn more about them and/or to check Squid's > classification, consider collecting a packet capture (and access-log > client ports so that it is easier to find the matching packets in the > capture). I found that some portion is caused by "ldirectord" probing if the proxy service on port 8080 is still active & working. But that's not the bulk of the connections. I'll try making some packet dumps. -- Ralf Hildebrandt Charite Universitätsmedizin Berlin ralf.hildebrandt@xxxxxxxxxx Campus Benjamin Franklin https://www.charite.de Hindenburgdamm 30, 12203 Berlin Geschäftsbereich IT, Abt. Netzwerk fon: +49-30-450.570.155 _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users