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MySQLReplication

Replica status (run on the replica)

Check Replica_IO_Running, Replica_SQL_Running and Seconds_Behind_Source. SHOW REPLICA STATUS needs 8.0.22+; older versions use SHOW SLAVE STATUS.

Not yet verified. How scripts are tested

b-my-repl.sql 
1SHOW REPLICA STATUS\G2 3-- MySQL before 8.0.224SHOW SLAVE STATUS\G

Paste it into your query tool.

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