5 SIMPLE TECHNIQUES FOR 約炮

主从模式是最基础的模式，配置简单，主要用于数据备份和读写分离，提高系统的读取性能。但是，主从模式无法处理主节点故障的情况。Cologne (Köln) provides a mother lode of sights, led by its popular cathedral whose filigree twin spires dominate the skyline. The town’s museum landscape is especi