Replication and Binary Logging Options and Variables ( binlog_format=ROW ),  log_slow_slave_statements  has no effect. Queries are only added to the replica’s slow query log when they are logged in statement format in the binary log, that is, when binlog_format=STATEMENT  is set, or when  binlog_format=MIXED  is set and the statement is logged in statement format. Slow queries that are logged in row format when  binlog_format=MIXED is set, or that are logged when  binlog_format=ROW  is set, are not added to the replica’s slow query log, even if  log_slow_slave_statements  is enabled. Setting  log_slow_slave_statements  has no immediate effect. The state of the variable applies on all subsequent  START REPLICA | SLAVE  statements. Also note that the global setting for long_query_time  applies for the lifetime of the SQL thread. If you change that setting, you must stop and restart the replication SQL thread to implement the change there (for example, by issuing  STOP REPLICA | SLAVE  and  START REPLICA | SLAVE  statements with the  SQL_THREAD  option). • master_info_repository • max_relay_log_size 3518 Command-Line Format --max-relay-log-size=# System Variable max_relay_log_size Scope Global Dynamic Yes SET_VAR  Hint Applies No Type Integer Default Value 0 Minimum Value 0 Command-Line Format --master-info-repository={FILE|TABLE} Deprecated 8.0.23 System Variable master_info_repository Scope Global Dynamic Yes SET_VAR  Hint Applies No Type String Default Value TABLE Valid Values FILE TABLE The use of this system variable is now deprecated. The setting  TABLE  is the default, and is required when multiple replication channels are configured. The alternative setting  FILE  was previously deprecated. With the default setting, the replica records metadata about the source, consisting of status and connection information, to an  InnoDB  table in the  mysql  system database named mysql.slave_master_info . For more information on the connection metadata repository, see Section 17.2.4, “Relay Log and Replication Metadata Repositories” . The  FILE  setting wrote the replica’s connection metadata repository to a file, which was named master.info  by default. The name could be changed using the  --master-info-file  option.