alt Hacker NewsIt is true that they have a particularly robust, distributed backup system that can/has come in handy, but FWIW the timing matters to them. English Wikipedia receives ~2 edits per second, or 172,800 per day. Many of them are surely minor and/or automated, but still: 1,036,800 lost edits is a lot!
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Kiboneu • yesterday at 6:04 PM
Filesystem & database snapshots are very cheap to make, you can make them every 15 minutes. You can expire old snapshots (or collapse the deltas between them) depending on the storage requirements.
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Are they really lost though? I think they should not be lost; they could be stored in a separate database additionally.