Running out of shm? => Yes, possible. But: How to check this ? Ulimit -l and ulimit -u show nothing interesting (that is: The usage (ulimit -u) is much less than the limits from ulimit -l) Uli T-Systems International GmbH Production / CSS / GCU Automotive & Finance Ulrich Herbst Fachbereich Automotive / Daimler AS Open Systems Head of Application Services Central Bannwaldallee 42, D-76185 Karlsruhe +49 721 990-2342 (Tel.) +49 151 16 20 73 13 (Mobil) E-Mail: Ulrich.Herbst@xxxxxxxxxxxxx Internet: http://www.t-systems.de Die gesetzlichen Pflichtangaben finden Sie unter: http://www.t-systems.de/pflichtangaben -----Ursprüngliche Nachricht----- Von: Tom Evans [mailto:tevans.uk@xxxxxxxxxxxxxx] Gesendet: Freitag, 25. Juli 2014 16:50 An: users@xxxxxxxxxxxxxxxx Betreff: Re: [proxy_http:error] [pid 13256:tid 47013272524544] (11)Resource temporarily unavailable: [client 172.31.0.142:21815] AH01110: error reading response On Fri, Jul 25, 2014 at 11:37 AM, <Ulrich.Herbst@xxxxxxxxxxxxx> wrote: > Hi, > > we have apaches as reverse proxies for some tomcat and > wso2-application servers. > > We get this error message on a high-load-webserver: > > [proxy_http:error] [pid 13256:tid 47013272524544] (11)Resource > temporarily > unavailable: [client 172.31.0.142:21815] AH01110: error reading > response > > And we have no clue, which resource is unavailable and what to do > against it. > > Apache-2.4.10 / apr-1.5.1 > > Ulimit of apache-user: > core file size (blocks, -c) 0 > data seg size (kbytes, -d) unlimited > scheduling priority (-e) 0 > file size (blocks, -f) unlimited > pending signals (-i) 46666 > max locked memory (kbytes, -l) 655360 > max memory size (kbytes, -m) unlimited > open files (-n) 655360 > pipe size (512 bytes, -p) 8 > POSIX message queues (bytes, -q) 819200 > real-time priority (-r) 0 > stack size (kbytes, -s) unlimited > cpu time (seconds, -t) unlimited > max user processes (-u) 655360 > virtual memory (kbytes, -v) unlimited > file locks (-x) unlimited > > $ cat /proc/sys/kernel/threads-max > 2065067 > > > So, I don’t see any visible shortage of anything. > > > Any ideas how to find the reason for this error ? > > Uli > Running out of shm? How are you proxying to tomcat (http/ajp/jk2)? Cheers Tom --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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