traffic_server not able to setrlimit > 1024 on FDs
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Key: TS-88
URL: https://issues.apache.org/jira/browse/TS-88
Project: Traffic Server
Issue Type: Bug
Components: Core
Affects Versions: 2.0a
Reporter: Leif Hedstrom
When starting TS, i get a warning / error like this:
[example_alarm_bin.sh] sent alarm: loki.ogre.com [Tue Dec 15 20:33:55 2009]
connection throttle too high, 10000 (throttle) + 192 (internal use) > 8192
(file descriptor limit), using throttle of 8000
stracing traffic_manager, I see:
r...@loki 332/1 # strace -f -e trace=setrlimit ./bin/traffic_manager 2>&1 |
grep setrlimit
[pid 24114] setrlimit(RLIMIT_CPU, {rlim_cur=RLIM_INFINITY,
rlim_max=RLIM_INFINITY}) = 0
[pid 24114] setrlimit(RLIMIT_FSIZE, {rlim_cur=RLIM_INFINITY,
rlim_max=RLIM_INFINITY}) = 0
[pid 24114] setrlimit(RLIMIT_NOFILE, {rlim_cur=1024, rlim_max=1024}) = 0
[pid 24126] setrlimit(RLIMIT_CORE, {rlim_cur=0, rlim_max=0}) = 0
[pid 24126] setrlimit(RLIMIT_NOFILE, {rlim_cur=10000, rlim_max=10000}) = -1
EPERM (Operation not permitted)
The last call is from traffic_server, indicating that it's not able to
setrlimit() to 10000. This would only happen (I think) if at this point it's
running as a non-root user. If I run traffic_server as root directly, I don't
have this problem (i.e. when it calls setrlimit() as root, it works fine).
This is using a standard installation in /usr/local.
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