go-sql-database/SQLITE_SCALING_NOTES.md

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+# SQLite Scaling Notes
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+If you are chosing to implement a SQLite database for each user in a multitenat environment you will want to minimize the number of open database/sql handles (`sql.Open`) that you have at any one time. A strategy you could use is an LRU cache of open handles. This way you will be able to maintain some control over number of resources you are instantiating.
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+Migrations may be a tough thing to do with a per user sqlite setup. Consider snapshoting the user's current DB, and creating a copy and applying the migration change. Also, you could apply the migrations when a new DB handle is created on the server side.
+
+Sqlited hosts a SQLite file behind an HTTP API, this could help reduce the contention of a Single writer to a DB. But also having a DB per user will achieve the same thing.