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  • Jan 31 2019 15:45
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  • Dec 26 2018 13:10

    Grokzen on redis-py-3.0

    Ported in a few new testcases t… More unicode, bytestring fixes.… (compare)

  • Dec 25 2018 12:35
    coveralls commented #300
  • Dec 25 2018 12:35
    coveralls commented #300
the error port is already allocated is usually a indication or either point 1 or 3 from ^
Angus Pearson
This PR andymccurdy/redis-py#866 at redis-py might have some interesting implications for this cluster impl if merged
seems to make fairly big changes to the client methods, by adding support for namespacing functions. I haven't had a play with the code yet but this might be useful for auto hashtagging keys (hashtag as in https://redis.io/topics/cluster-spec#keys-hash-tags)
@AngusP Is that not the third/fourth time that a namespace MR has been created? O.o
but still no merge yet
@Grokzen Re: that earlier work I was doing to find a good way to support lazy initialization, we were able to solve it at the application layer.
We have a delegate object we use via something like this:
def getattr(self, attr):
if not self._redis:
self._redis = initializeRedisClient(self._clusterEnabled, self._config)
res = getattr(self._redis, attr)
return res
works a lot better than expected
without needing to touch the library code at all
I'm now looking to add something like your https://github.com/Grokzen/docker-redis-cluster docker container to our testing setup. Would it be possible for you to add on an MIT license to that repro? I'd love to use your work directly, but it always nice to be sure there is a license explicit.
@AlexBoyd Woot? O.o is there not MIT license for that repo already?
It should have been that added to the repo already
i will add
awesome. Thanks for that :)
Grokzen/docker-redis-cluster#25 PR to add the default MIT license if that would at all help.
Kyle Fuhrmann
Hi there! I've been using the redis-py-cluster module for a few days now, and I've run into an issue. For rc.cluster_nodes(), I run into an issue where my port is returned as 6379@16379, and it errors out because in the utils.py, def parse_cluster_nodes(...) uses 'port': int(port). I've changed this to str(port) which hasn't caused any issues in my setup, but I'm not sure if it would cause issues elsewhere.
John Loehrer
@Grokzen just started playing around with hyperloglog commands and noticed that pfcount is blocked on pipeline mode: https://github.com/Grokzen/redis-py-cluster/blob/unstable/rediscluster/pipeline.py#L322-L323
is there a good reason for that? it should have the same restriction as the non-pipelined mode and only works with keys mapped to the same hashslot but I'm only planning on using single-key calls anyway.
John Loehrer

I have a workaround:

rediscluster.pipeline.StrictClusterPipeline.pfcount = rediscluster.client.StrictRedis.pfcount

But I'd rather not have to use it.

Put up a small patch to fix a bug I found in the retry logic when hitting a timeout / connection error in pipelines
just a really small fix where a return was inside rather than after a loop.
I had install redis-python-cluster model on AWS VM, then test the redis cluster connect failed. So is that only support redis 3.0+ version?
But I use jedis test it was successfully
Hello everyone! I am new to redis-py-cluster . I run a rediscluster with redis4.0.1, redis-py-cluster proper functioning. But redis-py-cluster's document said that It only support redis 3.0.x. I am confused.
And What redis version redis-py-cluster can realy supported? the redis-py-cluster i am using is redis_py_cluster-1.3.4.
morning guys! i anybody can recommend async/await style rediscluster client for py3.6 what better to use with aiohttp / sanic or any async io http servers ?
hello, how about let pipeline.watch() and pipeline.multi() support unique slot operation? Is there a good method to solve this problem before watch() and multi() available?
@alwaysR9 There is not that i know of
Joshua Gardner
I'm getting an error AttributeError: 'ConnectionPool' object has no attribute 'nodes'
@Grokzen can you tell me which company is using this lib? Thank you.
Hi everyone :) I have some trouble connecting redis in python. When I do it in a simple programm it works but when I connect to redis an another programm via in a docker image, it doesn't work anymore. Did someone have an issue like this one ? Thanks in advance
hi all, im using macOS, why I can't use redis cluster even I set the IP= in the environment
Leon Lee
Hello, anyone can help me with the hset command in redis-py-cluster? It hangs there when I use hset command
anyone know how to use lua to run script?
rediscluster_.eval(lua, 1, key, int(time.time()), auth["nonce"])
these errors come out:
Error running script (call to f_d8fc9f4469dc3bea9662f1af23a225c6fbd33622): @user_script:12: @user_script: 12: Wrong number of args calling Redis command From Lua script : ResponseError
Traceback (most recent call last):
File "/var/task/lambda_function.py", line 115, in POSTCheckin
return checkin(request)
File "/var/task/lambda_function.py", line 147, in checkin
get_secret_and_expiry(r, auth)
File "/var/task/lambda_function.py", line 315, in get_secret_and_expiry
int(time.time()), auth["nonce"])
File "/var/task/redis/client.py", line 2067, in eval
return self.execute_command('EVAL', script, numkeys, keys_and_args)
File "/var/task/rediscluster/utils.py", line 101, in inner
return func(
args, kwargs)
File "/var/task/rediscluster/client.py", line 371, in execute_command
return self.parse_response(r, command,
File "/var/task/redis/client.py", line 680, in parse_response
response = connection.read_response()
File "/var/task/redis/connection.py", line 629, in read_response
raise response
ResponseError: Error running script (call to f_d8fc9f4469dc3bea9662f1af23a225c6fbd33622): @user_script:12: @user_script: 12: Wrong number of args calling Redis command From Lua script
hi, anyone know Why doesn't redis-py-cluster support python redis 3.2.1.
Hello! Can anyone tell me what's the current status of feature/redis-py-3.0? How is the stability of it and when is it planned to be released?
Does listed issues in the above link still exist?
Kesava Vunnava

hi, >> import rediscluster

from rediscluster import RedisCluster
startup_nodes = [{"host": "", "port": "12540"}]
rc = RedisCluster(startup_nodes=startup_nodes, decode_responses=True)

it was blocking .
what can be the reason
Antonio Di Mariano

Hi guys, I've just installed redis-py-cluster 2.0.0 . I got this error

from redis._compat import unicode, bytes, long, basestring
ImportError: cannot import name 'bytes' from 'redis._compat'
redis                         3.5.0     
redis-py-cluster              2.0.0



Same error with the redis version 3.1.0.
Someonw can help me? Thanks

Antonio Di Mariano
so is the only working setup redis version 3.0.0 and redis-py-cluster 2.0.0 ?