这是有效的呼叫：

Question

我正在使用httparty进行一系列API调用。前两个API调用成功，但第三个失败。它暂停约60秒（默认超时时间），然后返回此错误：

/Users/luigi/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/net/protocol.rb:158:in `rescue in rbuf_fill': Net::ReadTimeout (Net::ReadTimeout)
    from /Users/luigi/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/net/protocol.rb:152:in `rbuf_fill'
    from /Users/luigi/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/net/protocol.rb:134:in `readuntil'
    from /Users/luigi/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/net/protocol.rb:144:in `readline'
    from /Users/luigi/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/net/http/response.rb:39:in `read_status_line'
    from /Users/luigi/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/net/http/response.rb:28:in `read_new'
    from /Users/luigi/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/net/http.rb:1406:in `block in transport_request'
    from /Users/luigi/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/net/http.rb:1403:in `catch'
    from /Users/luigi/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/net/http.rb:1403:in `transport_request'
    from /Users/luigi/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/net/http.rb:1376:in `request'
    from /Users/luigi/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/net/http.rb:1369:in `block in request'
    from /Users/luigi/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/net/http.rb:852:in `start'
    from /Users/luigi/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/2.0.0/net/http.rb:1367:in `request'
    from /Users/luigi/.rvm/gems/ruby-2.0.0-p247@pdf/gems/httparty-0.12.0/lib/httparty/request.rb:93:in `perform'
    from /Users/luigi/.rvm/gems/ruby-2.0.0-p247@pdf/gems/httparty-0.12.0/lib/httparty.rb:486:in `perform_request'
    from /Users/luigi/.rvm/gems/ruby-2.0.0-p247@pdf/gems/httparty-0.12.0/lib/httparty.rb:423:in `get'
    from /Users/jmccann/.rvm/gems/ruby-2.0.0-p247@pdf/gems/httparty-0.12.0/lib/httparty.rb:518:in `get'

我的问题是为什么会发生这种情况？这个错误是指示API的错误，还是我可以做些什么来引起它？

我的代码：

这是有效的呼叫：

url = HTTParty.get("https://dev.test.com#{call}",
    :basic_auth => auth,
    :headers => {'Accept' => 'application/json' } )

这是不起作用的呼叫：

url = HTTParty.get("https://dev.test.com#{call}",
    :basic_auth => auth,
    :headers => {'Accept' => 'application/json' } )

唯一改变的是实际的call，但根据API文档，它们都是有效的调用。

Answer 1

来自Ruby文档：http://ruby-doc.org/stdlib-2.1.2/libdoc/net/http/rdoc/Net/HTTP.html

等待读取一个块的秒数（通过一次读取（2）调用）。可以使用任何数字，包括小数秒的浮点数。如果HTTP对象在这么多秒内无法读取数据，它引发了一个Net :: ReadTimeout异常。默认值为60秒。

什么是call？服务端点是否不同？你在翻阅记录吗？ API通常会限制呼叫者以防止DDOS攻击。您可以尝试在某些重试逻辑中包装api调用或添加一些睡眠代码。

Ruby错误Net :: ReadTimeout

这是有效的呼叫：

这是不起作用的呼叫：

1 个答案: