Fix GrpcWorkerChannel.StartWorkerProcessAsync timeout #10937
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jviau
commented
Mar 21, 2025
| await _rpcWorkerProcess.StartProcessAsync(); | ||
| _state = _state | RpcWorkerChannelState.Initializing; | ||
| await _workerInitTask.Task; | ||
| await _rpcWorkerProcess.StartProcessAsync(cancellationToken); |
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This is the important change - we will now wait on either worker fully initialized (gRPC connection established) or worker exits (in which case, we will re-throw any failures the worker experience).
brettsam
reviewed
Mar 24, 2025
brettsam
reviewed
Mar 24, 2025
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Issue describing the changes in this PR
resolves #issue_for_this_pr
Pull request checklist
IMPORTANT: Currently, changes must be backported to the
in-procbranch to be included in Core Tools and non-Flex deployments.in-procbranch is not requiredrelease_notes.md-- TODOAdditional information
This PR improves the ScriptHost startup experience with a bad worker. Today, if a worker crashes or exits immediately after startup, then the
GrpcWorkerChannel.StartWorkerProcessAsyncwill block on_workerInitTask.Taskuntil it eventually times out. This tends to fault the entire host (at least during debugging).To address this, a
WorkerProcess.WaitForExitAsyncis added andGrpcWorkerChannel.StartWorkerProcessAsyncwill also wait on that, improving the responsiveness to a worker exiting before connecting gRPC events.