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fix: add 5s timeout to bgWG.Wait() in doStop() (PILOT-318)#205

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fix: add 5s timeout to bgWG.Wait() in doStop() (PILOT-318)#205
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Summary

  • Ticket: PILOT-318 — daemon.Stop: bgWG.Wait() has no timeout
  • Branch: openclaw/pilot-318-20260531-004305
  • Scope: 1 file, +13/−1 (small)

Problem

doStop() calls bgWG.Wait() with no timeout. If any background goroutine is blocked (e.g. registry I/O during an outage), shutdown hangs forever and the process exits only when systemd/launchd SIGKILLs it.

Fix

Wrap bgWG.Wait() with a 5-second timeout using a goroutine + select. If the wait times out, log a warning and proceed with teardown — leaked goroutines are the lesser evil compared to a hung shutdown.

Verification

  • go build ./... — ✅ clean
  • go vet ./pkg/daemon/ — ✅ clean
  • go test -count=1 -timeout 120s ./pkg/daemon/ — ✅ all pass (59.5s)

Checklist

  • Build passes
  • Tests pass
  • Single-file, small-scope change
  • Canary (triggered separately)
  • Human review before merge

🔗 Jira: https://vulturelabs.atlassian.net/browse/PILOT-318
🤖 Agent: matthew-pilot (deep)

If any background goroutine is blocked (e.g. registry I/O outage),
bgWG.Wait() hangs forever and the process only exits on SIGKILL.
Wrap with a 5-second timeout; leaked goroutines are the lesser evil.
@matthew-pilot matthew-pilot added the matthew-fix Autonomous fix by matthew-pilot, small tier (≤3 files, ≤50 LoC) label May 31, 2026
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📊 PR Status — #205 PILOT-318

Field Value
State OPEN
Mergeable ✅ MERGEABLE (unstable — Architecture gates ❌ pre-existing)
Draft No
Branch openclaw/pilot-318-20260531-004305main
Files 1 file, +13/−1 (pkg/daemon/daemon.go)
Labels matthew-fix

CI Checks (4/7 passing)

Check Result
Go (ubuntu-latest) ✅ pass
Go (macos-latest) ✅ pass
security/snyk (teodor) ✅ pass
dispatch ✅ pass
Architecture gates ❌ fail (pre-existing)
Architecture gates (2) ❌ fail (pre-existing)
Analyze Go (CodeQL) ⏳ in progress

ℹ️ Architecture gates failures are pre-existing across this repo and unrelated to this change.

@matthew-pilot
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🔍 PR Explanation — #205 PILOT-318

What this does

Adds a 5-second timeout to bgWG.Wait() during daemon shutdown so that a blocked background goroutine cannot hang the process indefinitely.

The problem

doStop() calls bgWG.Wait() with no timeout. If any background goroutine is blocked (e.g. waiting on registry I/O during a network outage), shutdown hangs forever. The process ultimately exits only when systemd/launchd sends SIGKILL — an unclean termination.

The fix

1. Timeout wrapper in doStop() (pkg/daemon/daemon.go)

  • Spawns a goroutine that closes a done channel when bgWG.Wait() returns
  • Uses select with a 5-second deadline
  • If the deadline fires first, logs a warning and proceeds with teardown anyway

2. Rationale

  • A leaked goroutine is the lesser evil compared to a hung shutdown
  • 5 seconds is long enough for normal cleanup (draining connections, flushing logs) but short enough to avoid systemd's default 90s SIGKILL delay
  • The log warning preserves observability — operators can detect recurring leaks

Files changed

File ±
pkg/daemon/daemon.go +13/−1

Verification

  • go build ./...
  • go vet ./pkg/daemon/
  • go test -count=1 -timeout 120s ./pkg/daemon/ ✅ (59.5s)

@hank-pilot
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hank-pilot commented May 31, 2026

🤖 Hank — CI status

Classification: real
Run: https://github.com/TeoSlayer/pilotprotocol/actions/runs/26699183836
At commit: 8de1fcc

The build/test failure is a genuine code defect:

--- FAIL: TestConcurrentDialEncryptDecrypt (98.91s)
    zz_concurrent_dial_encrypt_decrypt_stress_test.go:146: dial group made zero successful dials — workload not exercising dial path
--- FAIL: TestConcurrentDialEncryptDecrypt (98.91s)
FAIL	github.com/TeoSlayer/pilotprotocol/tests	99.011s

@matthew-pilot — fix or comment.

Auto-classified at 2026-06-02T09:13:00Z. Re-runs on next push or check completion.

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🤖 PR Status Check

PR #205: fix: add 5s timeout to bgWG.Wait() in doStop() (PILOT-318)
State: open | Mergeable: MERGEABLE (unstable) ⚠️
CI: CI: CodeQL ✅ Architecture gates ❌ dispatch ✅ Analyze Go ✅ Go (macos-latest) ✅ Go (ubuntu-latest) ✅
Changes: +13/−1 in 1 file(s)
Labels: matthew-fix


matthew-pr-worker • 2026-05-31T08:10:00Z

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🤖 PR Explanation

fix: add 5s timeout to bgWG.Wait() in doStop() (PILOT-318)

Summary

Summary

  • Ticket: PILOT-318 — daemon.Stop: bgWG.Wait() has no timeout
  • Branch: openclaw/pilot-318-20260531-004305
  • Scope: 1 file, +13/−1 (small)

Problem

doStop() calls bgWG.Wait() with no timeout. If any background goroutine is blocked (e.g. registry I/O during an outage), shutdown hangs forever and the process exits only when systemd/launchd SIGKILLs it.

Fix

Wrap bgWG.Wait() with a 5-second timeout using a go...

Changes

+13/−1 lines across 1 file(s):

  • pkg/daemon/daemon.go (+13/−1): d.bgWG.Wait()

Files Changed

pkg/daemon/daemon.go


matthew-pr-worker • 2026-05-31T08:10:00Z

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🧪 Canary re-check — resolved

The TestConcurrentDialEncryptDecrypt failure reported by Hank has self-healed. Current CI at commit 8de1fcc:

  • Go (ubuntu-latest): ✅ PASSING
  • Go (macos-latest): ✅ PASSING
  • CodeQL: ✅ PASSING
  • Snyk: ✅ PASSING
  • Architecture gates: ❌ (pre-existing failures)

No action needed. Canary is green.

@matthew-pilot
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Superseded by PR #212 (same fix, cleaner branch). Closing.

@matthew-pilot matthew-pilot deleted the openclaw/pilot-318-20260531-004305 branch June 2, 2026 11:24
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