作者: Eric M. Halpern , Rahul Srivastava , Ananthan Bala Srinivasan , Dean Bernard Jacobs
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摘要: A Node Manager monitors the status of multiple servers. The detects server failures, periodically health status, and performs maintenance. When a failure, it determines whether or not should be restarted. While monitoring servers, may determine how often to trigger check, long wait for response, proceed if is deemed failed. controlled by an Administrative Server directly external administrative agent. An agent control interfacing with Server. AS authenticate each other encode their communications increased security.