KeyError raised on `views.stats` view when using Redis Sentinel

[alaouimehdi1995]

When using Sentinels connection to Redis instead of a "single host", when opening the /admin/background-tasks/ URL, the following exception is raised:

Traceback (most recent call last):
  File "/usr/local/lib/python3.11/site-packages/django/core/handlers/exception.py", line 55, in inner
    response = get_response(request)
               ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/django/core/handlers/base.py", line 197, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/django/views/decorators/cache.py", line 62, in _wrapper_view_func
    response = view_func(request, *args, **kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/django/contrib/auth/decorators.py", line 23, in _wrapper_view
    return view_func(request, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/django_rq/views.py", line 37, in stats
    **get_scheduler_statistics(),
      ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/django_rq/utils.py", line 106, in get_scheduler_statistics
    conn_key = f"{connection['host']}:{connection.get('port', 6379)}/{connection.get('db', 0)}"
                  ^^^^^^^^^^^^^^^^^^

Exception Type: KeyError at /admin/background-tasks/
Exception Value: 'host'

[spapas]

Hello friends, I've got exactly the same problem (my redis listens on a unix socket). Any idea when a new version fixing this would be released ?

TIA

[spapas]

Unfortunately, the fix at https://github.com/rq/django-rq/pull/671/files doesn't cover my case (as I said I connect to redis with unix sockets).

A single fix would be to allow a None host like this: master...spapas:django-rq:master

If you want I'd be happy to create a small PR for that.

[spapas]

Hello friends, it's been two months and haven't got any reply to the problem. This is a 1 minute , 1 line fix.

To help you I have provided a PR #687 for that. But the PR needs to be merged and most importantly do a new release...

Can somebody please help ?

[MarcinWieczorek]

@selwin can you please apply PR #671 to pre RQ v2 branch (that is - on top of v2.10.3)? I need this fix but I'm not ready to migrate to v3.0 yet. Thank you

[spapas]

Pls notice that the PR #671 will not fix my issue because I don't use a sentinel. I use a unix socket to connect to redis so there's no HOST that's why I need #687. TIA

[MarcinWieczorek]

I understand your case, I hope your issue is fixed as well.