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39 lines
1000 B
Markdown
39 lines
1000 B
Markdown
# Graceful Stop Demo
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This example demonstrates the intended shutdown behavior after the gRPC graceful-stop patch.
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## Run
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```bash
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go run ./examples/graceful-stop
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```
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## Expected behavior
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- one long-running RPC starts
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- shutdown begins while that RPC is still running
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- new RPCs stop being accepted shortly after shutdown starts
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- the in-flight RPC is allowed to finish
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Typical output:
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```text
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long RPC is running; starting shutdown
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new RPC rejected after shutdown began: ...
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long RPC completed: slept for 1500ms
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done
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```
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There may be a small race window where the first post-stop RPC is still accepted once before subsequent new RPCs are rejected. The important part is that in-flight RPCs are drained while new RPCs are cut off.
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## Automated check
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```bash
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go test ./server/grpc -run TestGracefulStopRejectsNewRPCsButAllowsInFlightRPCs -v
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```
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## Environment
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- no special environment variables are required
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- the demo may print a TLS warning from `go-micro`; it is unrelated to this change
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