Purges monitoring history from the repmgr.monitoring_history table to prevent excessive table growth.
By default all data will be removed; Use the -k/--keep-history option to specify the number of days of monitoring history to retain.
This command can be executed manually or as a cronjob.
This command requires a valid repmgr.conf file for the node on which it is executed; no additional arguments are required.
Monitoring history will only be written if repmgrd is active, and monitoring_history is set to true in repmgr.conf.
A cluster_cleanup event notification will be generated.