I viewed the system log files and saw the following error message every two minutes:
Nov 11 11:27:34 hcstest smbd[416]: in openpam_read_chain(): /etc/pam.d/other: Too many open files
Nov 11 11:27:34 hcstest smbd[416]: in openpam_read_chain(): /etc/pam.conf: Too many open files
I ran the “ulimit -a” command to see what the default open file size and Max user processes size were. They were 256 and 709 which is very low.
ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
file size (blocks, -f) unlimited
max locked memory (kbytes, -l) unlimited
max memory size (kbytes, -m) unlimited
open files (-n) 256
pipe size (512 bytes, -p) 1
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 709
virtual memory (kbytes, -v) unlimited
I created two plist files that will change the default open file size and max user processes size limits to 524288 and 2048 and and put them in the following location:
/Library/LaunchDaemons/limit.maxfiles.plist
/Library/LaunchDaemons/limit.maxproc.plist
After a reboot, a re ran the ulimit -a command and the changes were now in effect. I monitored the system log and these errors are now gone.
Nov 11 11:27:34 hcstest smbd[416]: in openpam_read_chain(): /etc/pam.d/other: Too many open files
Nov 11 11:27:34 hcstest smbd[416]: in openpam_read_chain(): /etc/pam.conf: Too many open files
ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
file size (blocks, -f) unlimited
max locked memory (kbytes, -l) unlimited
max memory size (kbytes, -m) unlimited
open files (-n) 524288
pipe size (512 bytes, -p) 1
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 2048
virtual memory (kbytes, -v) unlimited
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