'Redis' object has no attribute 'bzpopmin'

[kmahelona]

I came across this error with the latest channels_redis==3.0.0

Error Log

2020-07-06 10:53:59,820 ERROR    Exception inside application: 'Redis' object has no attribute 'bzpopmin'
Traceback (most recent call last):
  File "/webapp/lib/python3.7/site-packages/channels/sessions.py", line 183, in __call__
    return await self.inner(receive, self.send)
  File "/webapp/lib/python3.7/site-packages/channels/middleware.py", line 41, in coroutine_call
    await inner_instance(receive, send)
  File "/webapp/lib/python3.7/site-packages/channels/consumer.py", line 59, in __call__
    [receive, self.channel_receive], self.dispatch
  File "/webapp/lib/python3.7/site-packages/channels/utils.py", line 58, in await_many_dispatch
    await task
  File "/webapp/lib/python3.7/site-packages/channels/utils.py", line 50, in await_many_dispatch
    result = task.result()
  File "/webapp/lib/python3.7/site-packages/channels_redis/core.py", line 453, in receive
    real_channel
  File "/webapp/lib/python3.7/site-packages/channels_redis/core.py", line 508, in receive_single
    index, channel_key, timeout=self.brpop_timeout
  File "/webapp/lib/python3.7/site-packages/channels_redis/core.py", line 345, in _brpop_with_clean
    result = await connection.bzpopmin(channel, timeout=timeout)
AttributeError: 'Redis' object has no attribute 'bzpopmin'

pip freeze I've redacted what I think isn't necessary

aioredis==1.2.0
amqp==2.6.0
asgiref==3.2.3
asn1crypto==0.24.0
async-timeout==3.0.1
attrs==19.3.0
cachetools==3.1.0
celery==4.4.6
channels==2.4.0
channels-redis==3.0.0
cryptography==2.9.2
daphne==2.5.0
defusedxml==0.5.0
Django==2.2.6
django-celery-beat==2.0.0
django-ses==1.0.1
future==0.18.2
gunicorn==20.0.4
h2==3.0.1
hiredis==0.3.0
hpack==3.0.0
oauthlib==2.1.0
psycopg2==2.8.5
pycrypto==2.6.1
pyOpenSSL==19.1.0
python-memcached==1.59
pytz==2020.1
requests==2.24.0
requests-oauthlib==1.0.0
Twisted==20.3.0

Fix Setting channels-redis==2.4.2 fixes the problem. I checked that channels is at the latest version and it is.

settings.py These are my settings. Possibly when channels_redis==3.0.0 there's another package that needs to be updated but only Django (and a few other non-related packages) is help back in my settings

Django==2.2.6
# Websockets
channels
pyopenssl
daphne
channels_redis==2.4.2
Twisted[tls,http2]

OS etc.

• Debian Stretch
• Python 3.7.1
• Django Channels running via nginx exec daphne -v 1 -u $SOCKFILE --proxy-headers kaituhisite.asgi:application

[imran-iq]

Same thing is happening with us after upgrading to 3.0.0

[carltongibson]

What’s your Redis version? (Less than v5 is EOL according to Redis’ support policy)

[imran-iq]

Looks like we have version 3.2.4 in aws, that is most likely the culprit seeing as bzpopmin is introduced in 5.0

(resolves my issue not sure about the OP)

[Si1veR123]

Having this issue too. I have redis-server version 4.09. bzpopmin is introduced in 5, however redis_channels states that above 2.?.? works. This is the error: aioredis.errors.ReplyError: ERR unknown command 'BZPOPMIN'

[carltongibson]

Updated Readme in #204. Thanks all.

[kmahelona]

Ah sorry, I didn't think I installed redis then assumed django-channels did it for me 😅. So the preferred fix here is to upgrade the supported version of redis. Happy to close this if that's valid.

[Si1veR123]

Ah sorry, I didn't think I installed redis then assumed django-channels did it for me 😅. So the preferred fix here is to upgrade the supported version of redis. Happy to close this if that's valid.

Only cost me about 4 hours of time😂

[rarenatoe]

How did you guys fix this? How did you manage to install version 5 or 6? I only found this and this. Both of them don't go past 3.5

I changed to redis3 but still no luck.

[imran-iq]

@rarenatoe its not your redis client version that needs to be updated, but your redis server version (where ever it is hosted)

(assuming you have redis-cli setup to connect to your redis host)

redis-cli INFO | grep version
redis_version:6.0.8  # <--- this needs to be 5.0 or higher

[Si1veR123]

How did you guys fix this? How did you manage to install version 5 or 6? I only found this and this. Both of them don't go past 3.5

I changed to redis3 but still no luck.

I just downgraded redis channels to something like 2.4 and kept my redis server and it worked fine Edit: I used 2.4.1 and it worked without error

[rarenatoe]

Thanks guys. I figured it out shortly after. I had to go to AWS and update it there.

[adambyer]

This is still happening for me.

• Redis version=6.2.0
• redis (lib)==3.5.3
• channels==3.0.3
• channels-redis==3.2.0
• Python 3.9.2
• macOS 10.15.7

Any ideas what I'm missing?

[Si1veR123]

This is still happening for me.

• Redis version=6.2.0
• redis (lib)==3.5.3
• channels==3.0.3
• channels-redis==3.2.0
• Python 3.9.2
• macOS 10.15.7

Any ideas what I'm missing?

I dont know if this will help, but I had to use 2.4.1 on channels redis for it to work.

[adambyer]

Thanks @Si1veR123. But that seems to conflict with channels 3 then so I can't upgrade.

Can someone confirm what the appropriate solution is for this? I have everything updated but can't get past this error.

Also the readme says This package is for Channels 2 projects only.. Is that accurate or is channels_redis 3 supposed to work with channels 3?

Thanks.

[adambyer]

Ok looks like upgrading aioredis to the latest has fixed it for me.

[ht21992]

I had the same issue for my Django project while using channels_redis and I just changed the CHANNEL_LAYERS inside settings.py

from

CHANNEL_LAYERS = {
    "default": {
        "BACKEND": "channels_redis.core.RedisChannelLayer",
        "CONFIG": {
            "hosts": [("localhost", 6379)],
        },
    },
}

to

CHANNEL_LAYERS = {
    "default": {
        "BACKEND": "channels_redis.pubsub.RedisPubSubChannelLayer",
        "CONFIG": {
            "hosts": [("localhost", 6379)],
        },
    },
}

[sahelimohammad]

I had the same issue for my Django project while using channels_redis and I just changed the CHANNEL_LAYERS inside settings.py

from

CHANNEL_LAYERS = {
    "default": {
        "BACKEND": "channels_redis.core.RedisChannelLayer",
        "CONFIG": {
            "hosts": [("localhost", 6379)],
        },
    },
}

to

CHANNEL_LAYERS = {
    "default": {
        "BACKEND": "channels_redis.pubsub.RedisPubSubChannelLayer",
        "CONFIG": {
            "hosts": [("localhost", 6379)],
        },
    },
}

Thank you so much, this solved my problem for 'bzpopmin'