feat(fortuna): Better metrics tracking for alerting #2703
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m30m
approved these changes
May 19, 2025
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I would call these latest_block_timestamp and latest_block_number
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Summary
The current metrics system makes it difficult to alert on certain kinds of failure cases. Specifically, chains don't show up in the metrics until they are successfully started, which means that if a chain fails to start, we don't get an alert. I also added a couple of timestamp metrics around the blockchain state logging and event processing. These timestamp metrics will go stale (i.e., out of sync with current time) if they are not updated, which will catch many kinds of failure cases. These case wouldn't be caught with the existing timestamp lag metric, which won't trigger a failure e.g., if the whole block tracking loop crashes.
How has this been tested?