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From "Bremser, Kurt (AMOS Austria GmbH)" <Kurt.Brem...@allianz.at>
Subject AW: [users@httpd] AW: error reading response
Date Fri, 25 Jul 2014 11:00:52 GMT
Could a quota be involved, or a native file size limit imposed by the file system?

Kurt Bremser
AMOS Austria
________________________________
Von: Ulrich.Herbst@t-systems.com [Ulrich.Herbst@t-systems.com]
Gesendet: Freitag, 25. Juli 2014 12:53
An: users@httpd.apache.org
Betreff: [users@httpd] AW: [proxy_http:error] [pid 13256:tid 47013272524544] (11)Resource
temporarily unavailable: [client 172.31.0.142:21815] AH01110: error reading response [wd-vc]

Additionally we get sometimes this message:

[Fri Jul 25 12:52:18.203975 2014] [proxy_http:error] [pid 13256:tid 47012293342976] (28)No
space left on device: [client 172.31.0.224:20507] AH01110: error reading response

And there is plenty of room in all filesystems. So maybe this is misleading and we have some
issues with shared memory too small ? (just my wild guess)

Uli

Von: Herbst, Ulrich
Gesendet: Freitag, 25. Juli 2014 12:37
An: users@httpd.apache.org
Betreff: [users@httpd] [proxy_http:error] [pid 13256:tid 47013272524544] (11)Resource temporarily
unavailable: [client 172.31.0.142:21815] AH01110: error reading response

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




AMOS Austria GmbH 
1130 Wien, Hietzinger Kai 101-105 
FN 365014k, Handelsgericht Wien 
UID: ATU 66614737 

http://www.allianz.at 

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