We're running a cluster of 4 identical Squid proxies. In order to check the functionality of each cluster node, were using ldirectord which is querying each realserver like this:
GET http://127.0.0.1/proxytest.cgi Now we were seen some odd warning in our graphs, clusternodes being removed and added back to the cluster only a few seconds later. I found that these requests for http://127.0.0.1/proxytest.cgi were sometimes (seldom -- maybe once/twice per day) failing. In the squid access.log I'm seeing this as: =========================================== Thu Aug 10 10:32:54 2023 115 141.42.5.218 TCP_REFRESH_ABORTED/200 0 141 GET http://127.0.0.1/proxytest.cgi - HIER_DIRECT/127.0.0.1 text/plain accessRule=- 56680 Thu Aug 10 10:33:02 2023 0 141.42.5.218 NONE_NONE_ABORTED/000 0 141 GET http://127.0.0.1/proxytest.cgi - HIER_NONE/- - accessRule=- - Thu Aug 10 10:33:07 2023 0 141.42.5.218 NONE_NONE_ABORTED/000 0 141 GET http://127.0.0.1/proxytest.cgi - HIER_NONE/- - accessRule=- - as opposed to the normal: ========================= Thu Aug 10 11:02:45 2023 5 141.42.5.218 TCP_REFRESH_MODIFIED/200 314 141 GET http://127.0.0.1/proxytest.cgi - HIER_DIRECT/127.0.0.1 text/plain accessRule=- 51940 My Logformat: ============= logformat squid-sourceport %ts.%03tu %6tr %>a %Ss/%03>Hs %<st %>st %rm %ru %[un %Sh/%<a %mt accessRule=%{accessRule}note %<lp * I replaced the the secondssince1970 timestamp with a human readable timeformat * Last colument in the log is the sourceport used by squid I checked nginx logs on that machine and found that the requests for http://127.0.0.1/proxytest.cgi never reached nginx (for the three incidents marked above) So my questions: ================ What are TCP_REFRESH_ABORTED/200 and (which looks more dire) NONE_NONE_ABORTED/000? -- Ralf Hildebrandt Charité - Universitätsmedizin Berlin Geschäftsbereich IT | Abteilung Netzwerk Campus Benjamin Franklin (CBF) Haus I | 1. OG | Raum 105 Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 [email protected] https://www.charite.de _______________________________________________ squid-users mailing list [email protected] http://lists.squid-cache.org/listinfo/squid-users
