备库搭建后,进入备库报错psql: FATAL: the database system is starting up 原因:备库配置文件没有hot_standby = on master -bash-4.1$ ps aux |grep post postgres 89707 0.0 0.0 43196188 2872 ? Ss 00:15 0:27 postgres: wal sender process rep 10.40.55.69(26717)…
DG搭建三种方式: 一.异机恢复,restore database,recover database 二. duplicate target database for standby from active database; 三. duplicate target database for standby 区别: 对主库的影响: 异机恢复,使用主库传输过来的备份,手工搭建物理DG,影响最小,安全系数最高,三种方式对比操作复杂 --手动挡 duplicate from active data…