.`ratelimit_burst` variable is only used if `ratelimit_interval` is set in `logging` system role Previously, in the `logging` RHEL System Role, when the `ratelimit_interval` variable was not set, the role would use the `ratelimit_burst` variable to set the rsyslog `ratelimit.burst` setting. But it had no effect because it is also required to set `ratelimit_interval`. With this enhancement, if `ratelimit_interval` is not set, the role does not set `ratelimit.burst`. If you want to set `ratelimit.burst`, you must set both `ratelimit_interval` and `ratelimit_burst` variables.