mysql 差异同步

import mysql.connector
from mysql.connector import Error

def sync_data(source_config, target_config):
    try:
        source_conn = mysql.connector.connect(**source_config)
        target_conn = mysql.connector.connect(**target_config)

        cursor_source = source_conn.cursor()
        cursor_target = target_conn.cursor()

        # 获取上次同步的位置
        cursor_source.execute("SHOW MASTER STATUS")
        last_position = cursor_source.fetchone()[1]

        # 从上次同步位置开始读取二进制日志
        cursor_source.execute(f"SHOW BINLOG EVENTS IN 'mysql-bin.000001' FROM {last_position}")

        for event in cursor_source:
            # 解析事件并应用到目标数据库
            apply_event(cursor_target, event)

        target_conn.commit()

    except Error as e:
        print(f"Error: {e}")
    finally:
        cursor_source.close()
        cursor_target.close()
        source_conn.close()
        target_conn.close()

def apply_event(cursor, event):
    # 解析事件并执行相应的SQL语句
    pass

source_config = {
    'host': 'source_host',
    'user': 'source_user',
    'password': 'source_password',
    'database': 'source_database'
}

target_config = {
    'host': 'target_host',
    'user': 'target_user',
    'password': 'target_password',
    'database': 'target_database'
}

sync_data(source_config, target_config)