--- - name: disable osd directory parsing by updatedb command: updatedb -e /var/lib/ceph changed_when: false failed_when: false - name: disable transparent hugepage command: "echo never > /sys/kernel/mm/transparent_hugepage/enabled" changed_when: false failed_when: false when: disable_transparent_hugepage - name: disable swap command: swapoff -a changed_when: false failed_when: false when: disable_swap - name: apply operating system tuning sysctl: name: "{{ item.name }}" value: "{{ item.value }}" state: present sysctl_file: /etc/sysctl.conf ignoreerrors: yes with_items: os_tuning_params