Worker can silently hang forever when starting

[milohansen]

When starting a TaskHubGrpcWorker, if the 'hello' message doesn't return the worker will appear to have started but actually not be doing anything.

The line in question:

durabletask-js/src/worker/task-hub-grpc-worker.ts

Line 121 in 0203252

await prom(new Empty());

Is there a functional reason the 'hello' message can't have a timeout (either internally or via Promise.race)?

From a usage perspective, I expect that awaiting start() will block until the worker has actually started.