The environment:
Ubuntu 9.10 (run within VirtualBox)
Ruby v1.8.7
Redis gem v2.0.6
On irb, when I try to initialize Redis I get a RuntimeError. Here's a snippet:
irb(main):001:0> require 'rubygems'
=> true
irb(main):002:0> require 'redis'
WARNING: using the built-in Timeout class which is known to have issues when used for opening connections. Install the SystemTimer gem if you want to make sure the Redis client will not hang.
=> true
irb(main):003:0> r = Redis.new
RuntimeError: -ERR unknown command
from /usr/lib/ruby/gems/1.8/gems/redis-2.0.6/lib/redis/client.rb:172:in `format_error_reply'
from /usr/lib/ruby/gems/1.8/gems/redis-2.0.6/lib/redis/client.rb:162:in `format_reply'
from /usr/lib/ruby/gems/1.8/gems/redis-2.0.6/lib/redis/client.rb:105:in `read'
from /usr/lib/ruby/gems/1.8/gems/redis-2.0.6/lib/redis/client.rb:35:in `call'
from /usr/lib/ruby/gems/1.8/gems/redis-2.0.6/lib/redis/client.rb:63:in `process'
from /usr/lib/ruby/gems/1.8/gems/redis-2.0.6/lib/redis/client.rb:245:in `ensure_connected'
from /usr/lib/ruby/gems/1.8/gems/redis-2.0.6/lib/redis/client.rb:61:in `process'
from /usr/lib/ruby/gems/1.8/gems/redis-2.0.6/lib/redis/client.rb:199:in `logging'
from /usr/lib/ruby/gems/1.8/gems/redis-2.0.6/lib/redis/client.rb:60:in `process'
from /usr/lib/ruby/gems/1.8/gems/redis-2.0.6/lib/redis/client.rb:34:in `call'
from /usr/lib/ruby/gems/1.8/gems/redis-2.0.6/lib/redis.rb:51:in `info'
from /usr/lib/ruby/gems/1.8/gems/redis-2.0.6/lib/redis.rb:560:in `inspect'
from /usr/lib/ruby/1.8/irb.rb:302:in `output_value'
from /usr/lib/ruby/1.8/irb.rb:151:in `eval_input'
from /usr/lib/ruby/1.8/irb.rb:263:in `signal_status'
from /usr/lib/ruby/1.8/irb.rb:147:in `eval_input'
from /usr/lib/ruby/1.8/irb.rb:146:in `eval_input'
from /usr/lib/ruby/1.8/irb.rb:70:in `start'
from /usr/lib/ruby/1.8/irb.rb:69:in `catch'
from /usr/lib/ruby/1.8/irb.rb:69:in `start'
from /usr/bin/irb:13irb(main):004:0> exit
Has anybody run into this before? Any ideas?
If your redis is the one provided by the 9.10 distribution, the version is too old to be ran with the 2.x gem. The 2.x gem expect at least a 1.2 redis