redis集群常见问题汇总【持续更新中...】
问题1：执行命令：./redis-trib.rb
/usr/local/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require': cannot load such file -- redis (LoadError)from /usr/local/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:45:in `require'from ./redis-trib.rb:25:in `' 解决方法：下载安装rubygem 进入解压包中.configure make && make install
此时就可以运行gem intall redis 命令，来安装ruby执行redis的相关依赖。
问题2：
gem install redis 命令出现的问题
ERROR:Loading command: install (LoadError)cannot load such file -- opensslERROR:While executing gem ... (NoMethodError) undefined method `invoke_with_build_args' for nil:NilClass 手动安装opensll,此问题解决。
问题3：
接着执行命令：gem install redis
ERROR:Loading command: install (LoadError)cannot load such file -- zlib 手动安装zlib包解决（这个可能是系统太纯净，没有些包的问题）。安装过程不多说，手动下载安装包安装
问题4：
接着执行命令：gem install redis
[*] ERROR:While executing gem ... (Gem::Exception)
[*] Unable to require openssl, install OpenSSL and rebuild ruby (preferred) or use non-HTTPS sources
[*]
[*] 网上搜索到的解决方法： gem sources --add https://ruby.taobao.org/ --remove https://rubygems.org/
[*] ERROR:While executing gem ... (Gem::Exception)
[*] Unable to require openssl, install OpenSSL and rebuild ruby (preferred) or use non-HTTPS sources
[*] 还是问题以旧。
解决方法：
gem sources -a https://gems.ruby-china.org/ 把https地址改成 gem sources -ahttp://gems.ruby-china.org/
执行成功，查看gem source -l 镜像地址修改成功。
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