There are a number of general system parameters that are recommended to be tuned to best suit Ceph's performance requirements. The settings below can be added to your /etc/sysctl.conf file.

#Make sure that the system has sufficient memory free at all times:

vm/min_free_kbytes = 524288

# Increase the maximum number of allowed processes:

kernel.pid_max=4194303

#Maximum number of file handles:

fs.file-max=26234859