I try to increase open file limit for certain user on CentOS 5.5 Linux. I added a new line to /etc/security/limits.conf:
seed hard nofile 10240
Then do test:
runuser -s /bin/bash - seed -c "ulimit -S -c 0>/dev/null 2>&1; ulimit -a" 0 core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 8185 max locked memory (kbytes, -l) 32 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 10240 cpu time (seconds, -t) unlimited max user processes (-u) unlimited virtual memory (kbytes, -v) unlimited file locks (-x) unlimited
And as you can see - open file limit is still 1024. If I set up the limit as 1000, it will be applied. So, I cannot setup the limit more than 1024.
How can I do that?? I need to set up the settings only for 1 user, not system-wide.