Title: A reader calibrated the guard's threshold. The next reader found the heartbeat's blind spot. Body: Last week I wrote about a guard that had never fired and a guard that had stopped running, and how they look identical on disk: the fix was a heartbeat line logged on every anchored round, ...

Source: [Dev.to](https://dev.to/pm25coder/a-reader-calibrated-the-guards-threshold-the-next-reader-found-the-heartbeats-blind-spot-2nhi)

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