How do I increase the available number of file descriptors for MariaDB ?

Solution Verified - Updated -

Issue

  • I want to increase the number of file descriptor mariadb is using
  • I get the following error:
[Warning] Could not increase number of max_open_files to more than 1024 (request: 41011)

Environment

  • Red Hat Openstack 5
  • Red Hat Openstack 6

  • Red Hat Openstack 7

  • If you have an HA Environment please refer to this article

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