AppDynamics Application Intelligence Platform

3.8.x Documentation

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If an application server agent is not reporting to the Controller, the App Agent Status in the App Servers list displays a red icon with a downward-facing arrow and a status of zero.

Similarly, if a machine agent is not reporting to the Controller, the Machine Agent Status in the App Servers list displays the same icon.

If the agent is not reporting, it is possible that the server is down, although here could be other reasons why the agent is not reporting.

To investigate further, in the Metric Browser locate the individual node in question in the Agent branch of the Application Infrastructure Performance tree. If the value of the Availability metric for the application is zero, the app server is down. If the value of the Availability metric for the machine is zero, the machine is down.

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