连接到URL时防止超时

Question

我想Benchmark在下面的代码中看到访问网址所花费的时间.我也试图在没有基准的情况下做同样的事情.也就是说,在测试开始和测试结束时获取时间,减去两个以获得时间.两种方法都以相同的超时错误结束.

require 'open-uri'
require 'benchmark'

response = nil
puts "opening website with benchmark..."
puts Benchmark.measure{
  response = open('http://mywebsite.com')
}

puts "Done !"
status = response.status
puts status

错误:

opening website with benchmark...
C:/ruby/lib/ruby/1.8/timeout.rb:64:in `rbuf_fill': execution expired (Timeout::Error)
    from C:/ruby/lib/ruby/1.8/net/protocol.rb:134:in `rbuf_fill'
    from C:/ruby/lib/ruby/1.8/net/protocol.rb:116:in `readuntil'
    from C:/ruby/lib/ruby/1.8/net/protocol.rb:126:in `readline'
    from C:/ruby/lib/ruby/1.8/net/http.rb:2028:in `read_status_line'
    from C:/ruby/lib/ruby/1.8/net/http.rb:2017:in `read_new'
    from C:/ruby/lib/ruby/1.8/net/http.rb:1051:in `request'
    from C:/ruby/lib/ruby/1.8/open-uri.rb:248:in `open_http'
    from C:/ruby/lib/ruby/1.8/net/http.rb:543:in `start'
    from C:/ruby/lib/ruby/1.8/open-uri.rb:242:in `open_http'
    from C:/ruby/lib/ruby/1.8/open-uri.rb:616:in `buffer_open'
    from C:/ruby/lib/ruby/1.8/open-uri.rb:164:in `open_loop'
    from C:/ruby/lib/ruby/1.8/open-uri.rb:162:in `catch'
    from C:/ruby/lib/ruby/1.8/open-uri.rb:162:in `open_loop'
    from C:/ruby/lib/ruby/1.8/open-uri.rb:132:in `open_uri'
    from C:/ruby/lib/ruby/1.8/open-uri.rb:518:in `open'
    from C:/ruby/lib/ruby/1.8/open-uri.rb:30:in `open'
    from C:/code/test.rb:7
    from C:/ruby/lib/ruby/1.8/benchmark.rb:293:in `measure'
    from C:/code/test.rb:6

当我尝试在浏览器中连接到此URL时,始终需要大约2-3分钟才能访问.

我搜索谷歌,但发现我的问题没有有用的答案.我知道我必须更改某些内容的超时设置,但无法确定哪一个.有人可以帮忙吗？

Answer 1

使用:read_timeout以秒为单位指定的选项,例如,

open('foo.com', :read_timeout => 10)

http://ruby-doc.org/stdlib-1.8.7/libdoc/open-uri/rdoc/OpenURI/OpenRead.html