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ep-engine
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Ask HN: Have you used SQLite as a primary database?
This isn't a typical use case. FWIW, a decade ago, we used sqlite as the persistence mechanism for an in-memory KV store called membase. (See https://github.com/membase/ep-engine). This was powering 50M+ DAU traffic in production for very intense write-heavy traffic. It did its job well. Around that time we also considered leveldb (and rocksdb a bit later) as alternative to sqlite.
uptime
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Ask HN: Have you used SQLite as a primary database?
When I maintained uptime.openacs.org (https://gitlab.com/siddfinch/uptime) and MyTurl (both running AOLserver) I wrote internal versions for a place I was working at.
I switched from Postgres to SQLite for a couple of versions, put mainly because Postgres wasn't "supported" I called SQLite an "internal database thing".
Worked flawlessly for about 7-8 years before both services were gobbled up into micro API services.
At the last count, we have about 14,000 services checked by uptime (about 1,000 every 5 minutes, 2,000 every 10 minutes, the rest every 15). Probably had about 60,000 tinyurls in MyTurl. We also ran the MyTurl urls through uptime every night to look for bad links. The system go hammered, often.
It took minor tweaking to get the the best performance out of the database and AOLserver has some nice caching features, which helped to take the load off the database a bit. But overall, it worked as well as the Postgres counterpart.
And now, I have to figure out why I never released the SQLite version of both.
What are some alternatives?
Lieutenant
RocksDB - A library that provides an embeddable, persistent key-value store for fast storage.
ws4sqlite - Query sqlite via json+http