| 摘要 |
Problem diagnostics may be obtained from components that log messages using a unique component identifier which is provided within each message so as to enable routing of callbacks to the component that originated the message. Similarly, problem diagnostics may be obtained from components that generate alerts, where the alerts contain the unique identifier of the component that generated the alert. Each component supports a diagnostic provider interface comprising operations which may be dynamically invoked, for example to solicit information from the component such as its configuration data, its state information, to execute self-diagnostic tests, and so forth. In addition or instead, operations may be provided that can be invoked to cause the component to alter its configuration data (such as notifying the component to change its level of message logging) or its behavior.
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