SocketError（getaddrinfo：名称或服务未知） - Sunspot / Solr Rails开发(SocketError (getaddrinfo: Name or service not known) - Sunspot/Solr Rails development)

 我将Rails 3.0.10应用部署到Passenger，Capistrano，nginx和MySQL的Ubuntu 10.04服务器（以及更多的apache2问题）方面遇到了很多麻烦。 将rake降级到0.8.7后，终于可以正常工作了，但现在Sunspot / Solr在我的开发环境中不起作用。 sunspot_solr服务器正在运行，我可以获取服务器的url，并通过浏览器连接到它。 该网址与sunspot.yml中的相同。 我不知道我所做的事情是否会导致问题。 我之前在太阳黑子上遇到了同样的问题（在降级耙子之前）。 然后突然又开始工作了。 我不知道为什么...我尝试过两个版本的太阳黑子（1.2.1和1.3.0）。 两者都在早期工作，但现在不再了。 
 
 这是我收到的错误消息： 
 
SocketError (getaddrinfo: Name or service not known):
app/models/resource.rb:128:in `text_search'
app/controllers/search_controller.rb:21:in `index'

Rendered /usr/lib/ruby/gems/1.8/gems/actionpack-3.0.10/lib/action_dispatch/middleware/templates/rescues/_trace.erb (2.0ms)
Rendered /usr/lib/ruby/gems/1.8/gems/actionpack-3.0.10/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (161.6ms)
Rendered /usr/lib/ruby/gems/1.8/gems/actionpack-3.0.10/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (168.9ms)
 
 控制器有点麻烦，所以我只包含相关部分： 
 
@criterion = params[:criterion]
@sort_direction = params[:sort_direction]
if @criterion && @sort_direction
  session["sort_search"] = @criterion + "|" + @sort_direction 
elsif session["sort_search"]
  @criterion = session["sort_search"].split("|")[0]
  @sort_direction = session["sort_search"].split("|")[1]
else
  @criterion = "updated_at"
  @sort_direction = "desc"
 end
@search = Resource.text_search(session[:search_params] || "", current_user, @criterion, @sort_direction) 
@resources = @search.results
 
 自从它工作以来，我没有改变控制器中的任何东西。 
 
 我的gemfile： 
 
source 'http://rubygems.org'
gem 'rake'
gem 'rails', '3.0.10'
gem 'jquery-rails', '>= 1.0.12'
gem 'sqlite3'
gem 'ancestry'
gem 'carrierwave'
gem 'sunspot_rails', '>= 1.3' #'~> 1.2.1' #
gem 'authlogic'
gem 'will_paginate'
gem 'declarative_authorization'
group :production do
  gem 'mysql'
end
group :development do
  gem 'sunspot_solr'
end
gem 'capistrano'
 
 我的rakefile： 
 
require File.expand_path('../config/application', __FILE__)
require 'rake'

Skolearkivet::Application.load_tasks

I have had lots of trouble with deploying my rails 3.0.10 application to Ubuntu 10.04 server with Passenger, Capistrano, nginx and MySQL (and even more trouble with apache2). After downgrading rake to 0.8.7 it's finally working, but now Sunspot/Solr doesn't work in my development environment. The sunspot_solr server is running, and I am able to get the server's url, and connect to it via the browser. The url is the same as in sunspot.yml. I have no idea what I have done that can have caused the problem. I had the same problem with sunspot earlier (before I downgraded rake). Then it suddenly started working again. I don't know why... I have tried two versions of Sunspot (1.2.1 and 1.3.0). Both have been working earlier, but not anymore.
 
This is the error message I'm getting:
 
SocketError (getaddrinfo: Name or service not known):
app/models/resource.rb:128:in `text_search'
app/controllers/search_controller.rb:21:in `index'

Rendered /usr/lib/ruby/gems/1.8/gems/actionpack-3.0.10/lib/action_dispatch/middleware/templates/rescues/_trace.erb (2.0ms)
Rendered /usr/lib/ruby/gems/1.8/gems/actionpack-3.0.10/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (161.6ms)
Rendered /usr/lib/ruby/gems/1.8/gems/actionpack-3.0.10/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (168.9ms)
 
The controller is a bit messy so I just include the relevant part:
 
@criterion = params[:criterion]
@sort_direction = params[:sort_direction]
if @criterion && @sort_direction
  session["sort_search"] = @criterion + "|" + @sort_direction 
elsif session["sort_search"]
  @criterion = session["sort_search"].split("|")[0]
  @sort_direction = session["sort_search"].split("|")[1]
else
  @criterion = "updated_at"
  @sort_direction = "desc"
 end
@search = Resource.text_search(session[:search_params] || "", current_user, @criterion, @sort_direction) 
@resources = @search.results
 
I have not changed anything in the controller since it was working. 
 
My gemfile:
 
source 'http://rubygems.org'
gem 'rake'
gem 'rails', '3.0.10'
gem 'jquery-rails', '>= 1.0.12'
gem 'sqlite3'
gem 'ancestry'
gem 'carrierwave'
gem 'sunspot_rails', '>= 1.3' #'~> 1.2.1' #
gem 'authlogic'
gem 'will_paginate'
gem 'declarative_authorization'
group :production do
  gem 'mysql'
end
group :development do
  gem 'sunspot_solr'
end
gem 'capistrano'
 
My rakefile:
 
require File.expand_path('../config/application', __FILE__)
require 'rake'

Skolearkivet::Application.load_tasks

原文：https://stackoverflow.com/questions/9654350