I'm running a server on heroku where I have intermittent channel layer
communications between instances of asyncConsumers. Running heroku locally,
I have no problem with redis channel connection since I can have as many of
them as I want, but once I upload my server to heroku, it gives me a 20
redis connection limit. If I use more than that my server errors out, so I
try to lower the expiry time so inactive redis connections would close.
BUT, if a redis connection expires and I try to use the channel name with
self.channel_layer.send(), I'll get the error below, how do I recover from
this error without having to have external calls to create another
asyncConsumer instance?
ERROR Exception inside application: Reader at end of file File
"/app/.heroku/python/lib/python3.6/site-packages/channels/consumer.py",
line 59, in __call__ [receive, self.channel_receive], self.dispatch File
"/app/.heroku/python/lib/python3.6/site-packages/channels/utils.py", line 51,
in await_many_dispatch await dispatch(result) File
"/app/.heroku/python/lib/python3.6/site-packages/channels/consumer.py",
line 73, in dispatch await handler(message) File "./myapp/webhook.py", line
133, in http_request await
self.channel_layer.send(userDB.backEndChannelName,{"type": "device.query"})
File
"/app/.heroku/python/lib/python3.6/site-packages/channels_redis/core.py",
line 296, in send if await connection.llen(channel_key) >=
self.get_capacity(channel): File
"/app/.heroku/python/lib/python3.6/site-packages/aioredis/commands/list.py",
line 70, in llen return self.execute(b'LLEN', key) File
"/app/.heroku/python/lib/python3.6/site-packages/aioredis/commands/__init__.py",
line 51, in execute return self._pool_or_conn.execute(command, *args,
**kwargs) File
"/app/.heroku/python/lib/python3.6/site-packages/aioredis/connection.py",
line 322, in execute raise ConnectionClosedError(msg) Reader at end of file
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