Fixing "SocketError: getaddrinfo: Name or service not known" with Ruby's resolv-replace.rb

Update 6/3/2014: there are other advantages to using a pure-Ruby DNS implementation. Recently we had a problem with DNS lookups for a particular API that only afflicted our Heroku-based workers (host name changed to protect the innocent): irb(main):009:0> Socket.gethostbyname("example.net") SocketError: getaddrinfo: Name or service not known That line of code works fine in other places I tried, li

[wyukawa]

最近fluent-plugin-webhdfsで増えているエラー（ただしretryは成功する）がこれなんだよなあ。Resolv使えと言ってるけどどうなんだろ。