To apply the RHEL 8 swappiness workaround

Purpose

Perform this procedure before you attempt to install NSP software on a RHEL OS instance that is to host any of the following components:

  • NSP Flow Collector

  • NSP Flow Collector Controller

  • collocated NSP Flow Collector Controller and Flow Collector

  • NSP analytics server

  • NFM-P:

    • main server

    • main database

    • collocated main server and database

    • auxiliary server

    • auxiliary database

Note: You must not perform this procedure on the NSP deployer host or an NSP cluster VM.

Steps
 
1 

Log in as the root user on the station that hosts the OS.

2 

Open a console window.

3 

Enter the following:

# grubby --update-kernel=ALL --args="systemd.unified_cgroup_hierarchy=1" ↵

The workaround is applied.

4 

Enter the following:

# systemctl reboot ↵

The station reboots.

5 

Close the console window.

End of steps