SET @start_global_value = @@global.ROCKSDB_MAX_MANIFEST_FILE_SIZE;
SELECT @start_global_value;
@start_global_value
1073741824
"Trying to set variable @@global.ROCKSDB_MAX_MANIFEST_FILE_SIZE to 444. It should fail because it is readonly."
SET @@global.ROCKSDB_MAX_MANIFEST_FILE_SIZE   = 444;
ERROR HY000: Variable 'rocksdb_max_manifest_file_size' is a read only variable
