resume

Resume Example — Crash Recovery

The core durable-go demo. Shows that completed steps are never re-executed after a crash.

Run

# Run 1 — crashes intentionally after step 2
CRASH_AFTER=2 go run .

# Run 2 — resumes; steps 1 & 2 replayed from cache, only step 3 executes
go run .

Expected output

Run 1

  → [fetch-data]       querying database …  ✓
  → [run-computation]  running model …      ✓
💥  SIMULATED CRASH after step 2

Run 2

  → [deliver-report]   sending report …     ✓
✅  Report delivered: true

On run 2, fetch-data and run-computation return from the journal without calling the step functions.

Reset

rm -rf examples/resume/.data/