RuntimeError:-ERR在Ruby上运行redis gem的未知命令 [英] RuntimeError: -ERR Unknown Command running redis gem on Ruby

问题描述

环境:

Ubuntu 9.10(在VirtualBox中运行)
Ruby v1.8.7
Redis gem v2.0.6

Ubuntu 9.10 (run within VirtualBox)
Ruby v1.8.7
Redis gem v2.0.6

在irb上，当我尝试初始化Redis时，得到一个RuntimeError.这是一个片段:

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

以前有人遇到过吗?有什么想法吗?

Has anybody run into this before? Any ideas?

推荐答案

如果您的Redis是9.10发行版提供的版本，则该版本太旧而无法与2.x gem一起运行. 2.x gem至少需要1.2 redis

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

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