In the case of the transaction service, the transaction HA policy provides the logic to determine which servers own a recovery log at any given time.

在事务服务场景中，事务ha策略提供逻辑以确定在规定时间内是哪台服务器拥有恢复日志。

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For our example, we will limit this to very simple mediation logic: you will log each message that goes through the mediation.

对于我们的示例，我们将其限制为非常简单的中介逻辑：记录经过中介的每条消息。

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Here, logging output influences other parts of a system in terms of business relevance, in other words, other applications read business critical log records and use those in their business logic.

在这种情形下，根据业务的相关程度，日志的输出将影响到系统的其它部分，换句话说，其它应用程序将读取关键业务日志并应用到它们的商业逻辑中。

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