Chapter 4. Disabling the resource optimization service

Procedure

1. Download the Ansible Playbook with the following command:

   $ curl -O https://raw.githubusercontent.com/RedHatInsights/ros-backend/v1.0/ansible-playbooks/ros_disable.yml

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2. Run the Ansible Playbook using command:

   # ansible-playbook -c local ros_disable_and_clean_up.yml

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Procedure

1. Disable resource optimization service metrics collection by removing this line from /etc/pcp/pmlogger/control.d/local

   LOCALHOSTNAME	n   y	PCP_LOG_DIR/pmlogger/ros	-r -T24h10m -c config.ros -v 100Mb

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2. Restart PCP so that resource optimization service metrics collection is effectively stopped:

   $ sudo systemctl pmcd pmlogger

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3. Remove the resource optimization service configuration file

   $ sudo rm /var/lib/pcp/config/pmlogger/config.ros

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4. Remove the resource optimization data from the system

   $ sudo rm -rf /var/log/pcp/pmlogger/ros

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5. If you are not using PCP for anything else, you can remove it from your system

   $ sudo yum remove pcp

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Procedure

1. Edit the /etc/default/grub file and remove psi=1 from the GRUB_CMDLINE_LINUX line.

2. Regenerate the grub configuration file.

   [user]$ sudo grub2-mkconfig -o /boot/grub2/grub.cfg

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3. Reboot the system.