新手问题 为什么安装时会请求这么多 gemspec.rz 文件? 这是什么意思呢?
gem install mysql2 -V
HEAD https://ruby.taobao.org/api/v1/dependencies 404 Not Found GET https://ruby.taobao.org/prerelease_specs.4.8.gz 302 Moved Temporarily GET https://rubygems-china.oss.aliyuncs.com/prerelease_specs.4.8.gz 304 Not Modified GET https://ruby.taobao.org/specs.4.8.gz 302 Moved Temporarily GET https://rubygems-china.oss.aliyuncs.com/specs.4.8.gz 304 Not Modified GET https://ruby.taobao.org/quick/Marshal.4.8/mysql2-0.3.17.gemspec.rz 302 Moved Temporarily GET https://rubygems-china.oss.aliyuncs.com/quick/Marshal.4.8/mysql2-0.3.17.gemspec.rz 200 OK GET https://ruby.taobao.org/quick/Marshal.4.8/mysql2-0.1.0.gemspec.rz 302 Moved Temporarily GET https://rubygems-china.oss.aliyuncs.com/quick/Marshal.4.8/mysql2-0.1.0.gemspec.rz 200 OK GET https://ruby.taobao.org/quick/Marshal.4.8/mysql2-0.1.1.gemspec.rz 302 Moved Temporarily GET https://rubygems-china.oss.aliyuncs.com/quick/Marshal.4.8/mysql2-0.1.1.gemspec.rz 200 OK GET https://ruby.taobao.org/quick/Marshal.4.8/mysql2-0.1.2.gemspec.rz 302 Moved Temporarily GET https://rubygems-china.oss.aliyuncs.com/quick/Marshal.4.8/mysql2-0.1.2.gemspec.rz 200 OK GET https://ruby.taobao.org/quick/Marshal.4.8/mysql2-0.1.3.gemspec.rz 302 Moved Temporarily GET https://rubygems-china.oss.aliyuncs.com/quick/Marshal.4.8/mysql2-0.1.3.gemspec.rz 200 OK
/api 是反向代理到 rubygems.org 官方的，这里由于是数据库的，没法做缓存、预先下载这类的
因为 /api 关了，RubyGems 没法获取正确信息，所以都拉了 如果 /api 开着的话，有很大几率反向代理会失败，而导致无法正确安装 Gem
所以，权衡下来，暂时将 /api 的反向代理关闭了