'redis cluster' connection raise exception since redis 5.x gem, should support redis-clustering gem.

[sudoudaisuke]

The 'redis-store' gem depends on the 'redis' gem.
The 'redis' gem since 5.0 does not support redis clusters. redis clusters are supported by the 'redis-clustering' gem.

https://github.com/redis/redis-rb/blob/master/CHANGELOG.md#500

Now I got exception by this code.

require 'redis-store'
redis = ::Redis::Store::Factory.create({cluster: 'redis://redis_cluster:7001/0'})

exception message

$ bundle exec ruby app.rb
/app/vendor/bundle/ruby/3.2.0/gems/redis-5.0.7/lib/redis.rb:136:in `initialize_client': Redis Cluster support was moved to the `redis-clustering` gem. (RuntimeError)
        from /app/vendor/bundle/ruby/3.2.0/gems/redis-5.0.7/lib/redis.rb:73:in `initialize'
        from /app/vendor/bundle/ruby/3.2.0/gems/redis-store-1.10.0/lib/redis/store.rb:21:in `initialize'
        from /app/vendor/bundle/ruby/3.2.0/gems/redis-store-1.10.0/lib/redis/store/factory.rb:27:in `new'
        from /app/vendor/bundle/ruby/3.2.0/gems/redis-store-1.10.0/lib/redis/store/factory.rb:27:in `create'
        from /app/vendor/bundle/ruby/3.2.0/gems/redis-store-1.10.0/lib/redis/store/factory.rb:10:in `create'
        from app.rb:3:in `<main>'

[slai11]

Would including redis-clustering force the redis-store gem to only support redis v5 gem? That said, what is the maintainer's stance on supporting Redis Cluster funtionalities in redis-store with the separation of redis-clustering from the redis gem?

[rayway30419]

I will recommend to use native redis-clustering with active_support
redis = Redis::Cluster.new(nodes: [])
store = ActiveSupport::Cache.lookup_store(:redis_cache_store, { redis: redis })

[iain-bryson]

Same issue here, except for the session. Is it possible to have a redis-rb 5 Redis::Cluster-based session store?

[tubbo]

for anyone reading this, @rayway30419 is correct...you can use the built-in redis cache store with ActiveSupport in modern versions of Rails. it should work with the redis-clustering gem inherently.