What happens if there is a network connection failure during two-phase commit processing?
如果在两阶段提交处理过程中出现网络连接故障，会发生什么情况？
Desired behavior: If the failure occurs before commit processing is complete, then the transaction goes in doubt.
期望的行为：如果故障出现在提交进程完成之前，那么事务的行为将无法确定。
The resource manager fails between prepare and commit processing, and the transaction manager detects the failure.
在准备和提交进程期间，资源管理器出现故障，事务管理器检测到错误。
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