switchover

    xiaoxiao2021-03-25  112

    一、switchover_status概念: A 如果switchover_status为TO_PRIMARY 说明标记恢复可以直接转换为primary库alter database commit to switchover to primary B 如果switchover_status为SESSION ACTIVE 就应该断开活动会话alter database commit to switchover to primary with session shutdown; C 如果switchover_status为NOT ALLOWED 说明切换标记还没收到,此时不能执行转换。
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