Ruby Net::OpenTimeout:执行已过期

Question

我的机器上的多个主机上一直出现此错误，例如:

require 'open-uri'
open('https://google.com').read


Net::OpenTimeout: execution expired
    from /usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/net/http.rb:904:in `initialize'
    from /usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/net/http.rb:904:in `open'
    from /usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/net/http.rb:904:in `block in connect'
    from /usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/timeout.rb:103:in `timeout'
    from /usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/net/http.rb:902:in `connect'
    from /usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/net/http.rb:887:in `do_start'
    from /usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/net/http.rb:876:in `start'
    from /usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/open-uri.rb:323:in `open_http'
    from /usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/open-uri.rb:741:in `buffer_open'
    from /usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/open-uri.rb:212:in `block in open_loop'
    from /usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/open-uri.rb:210:in `catch'
    from /usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/open-uri.rb:210:in `open_loop'
    from /usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/open-uri.rb:151:in `open_uri'
    from /usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/open-uri.rb:721:in `open'
    from /usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/open-uri.rb:35:in `open'
    from (irb):3
    from /usr/local/opt/rbenv/versions/2.4.0/bin/irb:11:in `<main>'

不会发生在其他人身上，例如

open('https://twitter.com').read

来自 rbenv 和 macOS 10.12.3 的 Ruby 2.4.0。还使用 Ruby 2.0.0 - macOS 上的系统版本进行了测试。

当我 curl 或使用 Node 的 request 时，我没有收到任何错误，并且得到了预期的结果。所以这不是被阻止的主机，我的 IP 也没有被阻止。

尝试重装Ruby，重启机器，问题依旧。

有什么建议吗？

Answer 1

看起来这是 Ruby 如何解析 DNS 的问题。

添加了 require 'resolv-replace'，现在它会立即打开连接。

资料来源: https://stackoverflow.com/a/27485369/116925 https://github.com/ruby/ruby/pull/597#issuecomment-40507119