Configure the lock timeout for migrations using settings.PGMIGRATE_LOCK_TIMEOUT by supplying a Python datetime.timedelta object. For example, the following configures the lock timeout to be five seconds:
import datetime
PGMIGRATE_LOCK_TIMEOUT = datetime.timedelta(seconds=5)When using the above configuration, any migration statement that waits over five seconds to acquire a lock will be terminated.
Here's what it looks like when running migrations:
We recommend using the lock timeout as a safeguard to ensure migrations don't block for too long. For example, if you've followed the guide in the Manually Terminating Blocking Queries section, you can show blocking queries and automatically stop migrations if you are unable to terminate blocking activity in time.
!!! note
Remember, this configures the lock timeout and *not* the statement timeout. In other words, your migration statements can still run as long as needed after they've acquired locks.