Server System Variables Type File name Command-Line Format --metadata-locks-cache-size=# Deprecated Yes (removed in 8.0.13) System Variable metadata_locks_cache_size Scope Global Dynamic No SET_VAR  Hint Applies No Type Integer Default Value 1024 Minimum Value 1 Maximum Value 1048576 Command-Line Format --metadata-locks-hash-instances=# Deprecated Yes (removed in 8.0.13) System Variable metadata_locks_hash_instances Scope Global Dynamic No SET_VAR  Hint Applies No Type Integer Default Value 8 Minimum Value 1 Maximum Value 1024 Command-Line Format --min-examined-row-limit=# System Variable min_examined_row_limit 837 • min_examined_row_limit • metadata_locks_hash_instances • metadata_locks_cache_size The  mecab_rc_file  option is used when setting up the MeCab full-text parser. The  mecab_rc_file  option defines the path to the  mecabrc  configuration file, which is the configuration file for MeCab. The option is read-only and can only be set at startup. The  mecabrc configuration file is required to initialize MeCab. For information about the MeCab full-text parser, see Section 12.10.9, “MeCab Full-Text Parser Plugin” . For information about options that can be specified in the MeCab  mecabrc  configuration file, refer to the MeCab Documentation on the Google Developers site. This system variable was removed in MySQL 8.0.13. This system variable was removed in MySQL 8.0.13.