小于mysql8的主从mysql7主从

-- 步骤1: 停止复制IO线程
STOP SLAVE IO_THREAD;
-- 停止所有
STOP SLAVE;

-- SOURCE_LOG_FILE='主库SHOW BINARY LOG STATUS输出的File值',
-- SOURCE_LOG_POS=主库SHOW BINARY LOG STATUS输出的Position值;
CHANGE MASTER TO
  MASTER_HOST='ip',
  MASTER_USER='repl_user',
  MASTER_PASSWORD='password',
  MASTER_PORT=40010,
  MASTER_LOG_FILE='binlog.000034',
  MASTER_LOG_POS=5396411,
  MASTER_AUTO_POSITION=0;

-- 步骤4: 验证复制状态
START SLAVE IO_THREAD;
START SLAVE;

SHOW SLAVE STATUS;