How can I determine maximum number of connections required to MariaDB database for an Openstack deployment?

Solution Verified - Updated -

Issue

  • RHEL-OSP Highly Available deployment with three controllers is using MariaDB with Galera as the database backend. We need to configure below in this environment.
  • How can I determine if these maximum connections are enough? If they need to be increased, what should be the right value to configure?

Environment

  • Red Hat Enterprise Linux Openstack Platform 5.
  • Red Hat Enterprise Linux Openstack Platform 6.
  • Red Hat Enterprise Linux Openstack Platform 7.
  • Red Hat Enterprise Linux Openstack Platform 8.
  • Red Hat Enterprise Linux Openstack Platform 9.

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