MongoDB Ubuntu 16.04 sticky ulimits

gistfile1.txt

# system maximum
cat /proc/sys/fs/file-max

# available limit
ulimit -n

# Increase system-wide limit in /etc/sysctl.conf
fs.file-max = 200000

# Refresh
sudo sysctl -p

# Modify limits in /etc/security/limits.conf
mongodb soft     nproc          200000
mongodb hard     nproc          200000
mongodb soft     nofile         200000
mongodb hard     nofile         200000
mongodb soft     memlock        2048
mongodb hard     memlock        2048

# Enable limits.conf processing in /etc/pam.d/common-session
session required pam_limits.so

#Log out/in to get the changes