SET @start_global_value = @@global.ROCKSDB_LOG_FILE_TIME_TO_ROLL;
SELECT @start_global_value;
@start_global_value
0
"Trying to set variable @@global.ROCKSDB_LOG_FILE_TIME_TO_ROLL to 444. It should fail because it is readonly."
SET @@global.ROCKSDB_LOG_FILE_TIME_TO_ROLL   = 444;
ERROR HY000: Variable 'rocksdb_log_file_time_to_roll' is a read only variable
