Question

我知道Http.rb和Celluloid [1]目前不支持当前超时，但有临时解决方法吗？

这是我想要运行的代码：

  def fetch(url, options = {} )
    puts "Request -> #{url}"
    begin
      options = options.merge({ socket_class: Celluloid::IO::TCPSocket,
                                timeout_class: HTTP::Timeout::Global,
                                timeout_options: {
                                  connect_timeout: 1,
                                  read_timeout: 1,
                                  write_timeout: 1
                                  }
                              })
      HTTP.get(url, options)
    rescue HTTP::TimeoutError => e
      [do more stuff]
    end
  end

它的目标是测试服务器是否健康。我会对替代方案持开放态度（例如%x(ping <server>)），但这些效率似乎不那么高，实际上能够得到我正在寻找的东西。

[1] https://github.com/httprb/http.rb#celluloidio-support

Answer 1

您可以在获取请求时设置将来呼叫的超时

以下是如何在Http.rb和Celluloid-io

中使用超时

require 'celluloid/io'
require 'http'
TIMEOUT = 10 # in sec
class HttpFetcher
  include Celluloid::IO

  def fetch(url)
    HTTP.get(url, socket_class: Celluloid::IO::TCPSocket)
  rescue Exception => e
   # error
  end
end

fetcher = HttpFetcher.new

urls = %w(http://www.ruby-lang.org/ http://www.rubygems.org/ http://celluloid.io/)

# Kick off a bunch of future calls to HttpFetcher to grab the URLs in parallel
futures = urls.map { |u| [u, fetcher.future.fetch(u)] }

# Consume the results as they come in
futures.each do |url, future|
  # Wait for HttpFetcher#fetch to complete for this request
  response = future.value(TIMEOUT)
  puts "*** Got #{url}: #{response.inspect}\n\n"
end

使用Http.rb和Celluloid进行超时的解决方法？

1 个答案: