"Database is locked" when performing operation in Arcadia UI

If you are using sqlite as the arcadia visualization server metadata, from time to time you might observe a “database locked” error as shown below:


For any production deployment of Arcadia with high user concurrency we highly recommend using a proper load balanced RDBMS like mysql or oracle as the metastore DB for the visualization server.
Sqlite is known to have a low threshold for request concurrency before a lockout is experience.

Refer to these docs to configure visualization with RDBMS like mysql:

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