clear_lock

The clear_lock management command allows you to delete one or more locks, which may be useful for troubleshooting if you have stagnant locks.

You may encounter stagnant locks if you’re using locking functions such as get_lock(), instead of using the context manager LockMgr (or in rare events where your application exits unexpectedly, without time to cleanup locks).

Below is an excerpt from the manage.py help ./manage.py clear_lock --help:

Releases one or more specified locks set using Privex's django-lockmgr package

positional arguments:
  locks                 One or more lockmgr lock names (as positional args) to release the locks for

Example usage

# Create the two locks 'hello' and 'world'
./manage.py set_lock hello world

    Finished creating / renewing 2 locks.


# Delete the locks 'hello', 'world' and 'test' (it doesn't matter if some of the passed locks don't exist)
./manage.py clear_lock hello world test

    Releasing lock hello from LockMgr...
    Lock hello has been removed (if it exists).
    
    Releasing lock world from LockMgr...
    Lock world has been removed (if it exists).
    
    Releasing lock test from LockMgr...
    Lock test has been removed (if it exists).

Classes

Command()

class lockmgr.management.commands.clear_lock.Command

add_arguments(parser: django.core.management.base.CommandParser)

Entry point for subclassed commands to add custom arguments.

handle(*args, **options)

The actual logic of the command. Subclasses must implement this method.