当发生与中心连接中断的事件时，分支可能在本地支持有限的业务功能，一旦连接恢复，随即与其同步。
A branch may locally support limited business functionality in the event connectivity to the hub is interrupted, with subsequent synchronization once connectivity resumes.
在重启之后，DB2和IDS都将尝试恢复打开的事务分支。
DB2 as well as IDS will try to recovery the open transaction branch after reboot.
从预测错误的分支中恢复需要18到19个周期。
It takes 18-19 cycles to recover from a mispredicted branch.
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