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bramw_baserow/docs/technical/postgresql-locks.md

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PostgreSQL locking and Baserow

Exceeding max_locks_per_transaction

In a handful of Baserow features, such as snapshotting and duplicating, we take the specified database and fetch all of its tables to perform operations on them.

Unfortunately if the total number of tables in the database is very high (i.e. 5,000-10,000), it's possible to exceed the total number of locks specified in PostgreSQL's max_locks_per_transaction configuration setting.

To resolve this, the steps are as follows:

  1. Find the path to your postgresql.conf. In psql this can be found with SHOW config_file.
  2. Edit the file, and find max_locks_per_transaction.
  3. Increase the value. The new value will depend on a number of factors, such as what max_connections and max_prepared_transactions are set to. We recommend experimenting with higher values.
  4. For the new value to effect, restart postgresql.

If you are hosting Baserow with a managed database, please ask your hosting provider how max_locks_per_transaction can be increased, they may be able to increase it for you.