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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。它暂停大约 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这样？这个错误是否表明 API 有错误，或者我可以做些什么来导致它？

我的代码：

这是有效的调用：

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

这是不起作用的调用：

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。

4

1 回答 1

15

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 read(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，则会引发 Net::ReadTimeout 异常。默认值为 60 秒。

是什么call？服务端点是否不同？你在翻阅记录吗？API 通常会限制调用者的速率以防止 DDOS 攻击。您可以尝试将您的 api 调用包装在一些重试逻辑中或添加一些睡眠代码。

于 2014-06-29T20:58:16.667 回答