Agent will try to register service and instance until succeed. It will block the thread.

[pmq5205209]

I make agent to register service and instance in main thread. If the backend service of the collector is invalid, the thread will be blocked.

[wu-sheng]

If you don't, you need more mechanisms to accept the context is not available, like Java or other agents did. Please consider to send a pull request.

[wu-sheng]

Register is gone since the v3 trace format. Closing.