# Case 1: Setting fifo file to general_log_file and slow_query_log_file # system variable. SET GLOBAL general_log_file="MYSQLTEST_VARDIR/tmp/general_log.fifo";; ERROR 42000: Variable 'general_log_file' can't be set to the value of 'MYSQLTEST_VARDIR/tmp/general_log.fifo' SET GLOBAL slow_query_log_file="MYSQLTEST_VARDIR/tmp/slow_log.fifo";; ERROR 42000: Variable 'slow_query_log_file' can't be set to the value of 'MYSQLTEST_VARDIR/tmp/slow_log.fifo' # Case 2: Starting server with fifo file as general log file # and slow query log file. call mtr.add_suppression("Could not use .* for logging \\(error 6\\)"); call mtr.add_suppression("File '.*' not found \\(Errcode: 6 "); Setting fifo file as general log file and slow query log failed.