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redisdjango-channels

Redis ERR unknown command 'BZPOPMIN'

I installed Redis version 4.0.9 in a Ubuntu Linux Subsystem on Windows 10 by following these instructions (i.e. sudo apt-get install redis-server).

I am following this tutorial on Django channels, and I ran the following code:

>>> import channels.layers
>>> channel_layer = channels.layers.get_channel_layer()
>>> from asgiref.sync import async_to_sync
>>> async_to_sync(channel_layer.send)('test_channel', {'type': 'hello'})
>>> async_to_sync(channel_layer.receive)('test_channel')

When the last line above is executed, I get this error:

Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "C:\Users\xyz\Anaconda3\envs\django\lib\site-packages\asgiref\sync.py", line 120, in __call__
    return call_result.result()
  File "C:\Users\xyz\Anaconda3\envs\django\lib\concurrent\futures\_base.py", line 425, in result
    return self.__get_result()
  File "C:\Users\xyz\Anaconda3\envs\django\lib\concurrent\futures\_base.py", line 384, in __get_result
    raise self._exception
  File "C:\Users\xyz\Anaconda3\envs\django\lib\site-packages\asgiref\sync.py", line 180, in main_wrap
    result = await self.awaitable(*args, **kwargs)
  File "C:\Users\xyz\Anaconda3\envs\django\lib\site-packages\channels_redis\core.py", line 485, in receive
    return (await self.receive_single(channel))[1]
  File "C:\Users\xyz\Anaconda3\envs\django\lib\site-packages\channels_redis\core.py", line 508, in receive_single
    index, channel_key, timeout=self.brpop_timeout
  File "C:\Users\xyz\Anaconda3\envs\django\lib\site-packages\channels_redis\core.py", line 345, in _brpop_with_clean
    result = await connection.bzpopmin(channel, timeout=timeout)
aioredis.errors.ReplyError: ERR unknown command 'BZPOPMIN'

On this page, someone suggested using Redis version 5. How do I install Redis version 5 on Windows 10? Any other ideas on how to solve this issue?

Solution

  • There is no official support for Redis in Windows OS.

    However, Microsoft develops and maintains microsoftarchive/redis. Also it is no longer supported (older versions are availble). I had long search on this about installing version 5 in windows 10. But no luck.

    Better you can go for Memurai. Memurai is 100% compatible with the Redis protocol (also supported version 5 too). It is free for development and testing.

    EDIT : From Itamar comment, u can also use this as alternative for Memurai