例如，在补偿事务失败的情况下，您可以向系统管理员发送通知，或者用消息技术稍后重试这些事务。

For example, in the case of compensating transaction failure you could send notification to the system administrator, or use messaging technology to retry these transactions at a later time.

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为了测试这个失败的订阅通知发送场景，可以使用mock。

To test this failed subscription notification delivery scenario, we can use a mock.

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任务被添加到代理，以便该代理中的任何任务失败时发送电子邮件通知。

"Task is added to the agent to send an email notification if any of the tasks in this agent failed."

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