Sysbench fails at 1024 connections on 48 core machine

[Lee Bieber]

On our new 48 core machines, sysbench fails at 1024 connections for both readwrite and readonly

See http://hudson.drizzle.org/view/Drizzle-staging/job/drizzle-staging-sysbench-readonly-48core/
and http://hudson.drizzle.org/view/Drizzle-staging/job/drizzle-staging-sysbench-readwrite-48core/

I see this in the error logs:

accept() failed with errno 24accept() failed with errno 24/home/hudson/hudson/workspace/drizzle-stagin
g-sysbench-readonly-48core/drizzled/.libs/lt-drizzled: Normal shutdown

[Andrew Hutchings (linuxjedi)]

error 24 = Too many files open

[Joe Daly (skinny.moey)]

ulimit -a will most likely show open files set to 1024 its probably should be upped for whatever the test user is

[Andrew Hutchings (linuxjedi)]

also /proc/sys/fs/file-max might be worth a look

[Lee Bieber (kalebral-deactivatedaccount)]

open files looks to be set correctly

% ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 20
file size (blocks, -f) unlimited
pending signals (-i) 135168
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 8192
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) unlimited
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited

% more /proc/sys/fs/file-max
6444269

[Lee Bieber (kalebral-deactivatedaccount)]

But the settings were not correct for the user "hudson"