Implement heartbeat checks for registrar

Nava2 / cs9864-realtime-bluemix

Repository for CS 9864 project

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Implement heartbeat checks for registrar #48

Closed Nava2 closed 8 years ago

Nava2 commented 8 years ago

The client registrar needs a heartbeat to check on its registered services.

Suggested implementation: On each URL, every X seconds, do a HEAD / request and if a non-network error or success is returned, then it's available.

2XX -> Still good!
3XX -> No change, still good
4XX -> Service is still up, the page just does not exist or is unauthed
5XX -> Bad, remove the service

Nava2 commented 8 years ago

Also, there should be a route PUT /heartbeat that is used for a running service to update that it's still running. This gives better fault detection.

This is not worth doing yet, please focus on your paper presentation.