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drolbr / Overpass-API

A database engine to query the OpenStreetMap data.
http://overpass-api.de
GNU Affero General Public License v3.0
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Improve resilience on power outages #730

Open drolbr opened 5 months ago

drolbr commented 5 months ago

See this thread on community.openstreetmap.org .

There are apparently some scenarios where an Overpass database is rendered unusable when a power outage stopped the disks. Improve resilience with regard to proper atomics and more checks on recovery startups to make Overpass more resilient.

drolbr commented 5 months ago

The update mechanism has skipped one diff. This must not happen under no circumstances.

Also, there are zeros in the idx files where none should be. Check on startup for suspicious file content and use alternative files where available.