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```
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show global variables like '%gtid%';
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show global variables like 'server_uuid';
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```
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```
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# 不锁表，需要删除原来数据表
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# tables = db.query('show tables from `%s`' % sync_db_import)
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# table_key = "Tables_in_" + sync_db_import
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# for tname in tables:
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# drop_db_cmd = 'drop table if exists '+sync_db_import+'.'+tname[table_key]
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# # print(drop_db_cmd)
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# db.query(drop_db_cmd)
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```
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```
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# 修改同步位置
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# master_info = sync_mdb.query('show master status')
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# slave_info = db.query('show slave status')
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# if len(master_info)>0:
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# channel_name = slave_info[0]['Channel_Name']
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# change_cmd = "CHANGE MASTER TO MASTER_LOG_FILE='"+master_info[0]['File']+"', MASTER_LOG_POS="+str(master_info[0]['Position'])+" for channel '"+channel_name+"';"
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# print(change_cmd)
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# r = db.execute(change_cmd)
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# print(r)
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```
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