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MarkFull 2011-05-02 06:11:40 +08:00
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ry_wang 2011-05-02 11:24:24 +08:00
发现异常为啥不能及时回滚呢?其实我好奇这个
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Sidney 2011-05-02 22:02:25 +08:00
看着有种心惊肉跳的感觉
两点感受 1. 人为的操作容易出现错误。之前碰到过hosting的人员在配置Firewall的时候误操作,Firewall Hang住,导致网站无法访问。 The traffic shift was executed incorrectly and rather than routing the traffic to the other router on the primary network, the traffic was routed onto the lower capacity redundant EBS network. 2. 对回滚操作的后果估计不足,带来连锁雪崩效应。除非对系统各个模块和它们之间的交互有足够的理解,说不定就会踩中地雷。 Incorrect traffic shift was rolled back and network connectivity was restored. This quickly led to a “re-mirroring storm,” where a large number of volumes were effectively “stuck” while the nodes searched the cluster for the storage space it needed for its new replica. |