As a PMM User, I need pmm to rotate my SlowLog files so that I can not set up the rotation by an external program.
We need to provide an additional parameter for --size-slow-logs (=0 = no rotation) (1Gb by default )
No need to specify the number of files (keep only 1 file )
Error and warnings: TBD
based on https://dev.mysql.com/doc/refman/5.5/en/flush.html#flush-slow-logs we should move the log file and FLUSH SLOW LOGS (note we might need additional permission )