Heroku上的Rails 4应用程序获得Elasticsearch IndexMissingException

Question

有一个Rails 4应用程序，想要使用ElasticSearch添加全文搜索。
该应用程序在本地使用工头运行正常，但在heroku上部署的版本中提交搜索查询时出现错误：“IndexMissingException”（请参阅下面的完整错误日志。）
我认为这个问题与我没有正确指向heroku上的ElasticSearch索引有关。我试过跟随heroku instructions，但说实话我并不完全理解“使用你的索引部分”，我认为这是问题的根源。

任何有关在Heroku上使用ElasticSearch正确设置Rails 4应用程序的建议都将不胜感激！

这里有一些细节，希望可以帮助调试这个。

Ruby / Rails版本

ruby 2.1.3p242 (2014-09-19 revision 47630) [x86_64-darwin14.0]
Rails 4.2.1

来自Heroku Logs

2015-04-12T20:52:36.506728+00:00 app[web.1]: Started GET "/posts?utf8=%E2%9C%93&q=better" for 98.14.231.17 at 2015-04-12 20:52:36 +0000
2015-04-12T20:52:36.553113+00:00 app[web.1]: 
2015-04-12T20:52:36.553116+00:00 app[web.1]: ActionView::Template::Error ([404] {"error":"IndexMissingException[[posts] missing]","status":404}):
2015-04-12T20:52:36.553118+00:00 app[web.1]:      7:   <% end %>
2015-04-12T20:52:36.553120+00:00 app[web.1]:      8: 
2015-04-12T20:52:36.553131+00:00 app[web.1]: 
2015-04-12T20:52:36.553121+00:00 app[web.1]:      9:   <ul>
2015-04-12T20:52:36.553123+00:00 app[web.1]:     10:   <% @posts.each do |post| %>
2015-04-12T20:52:36.550831+00:00 app[web.1]:   Rendered posts/index.html.erb within layouts/application (27.2ms)
2015-04-12T20:52:36.553124+00:00 app[web.1]:     11:     <li>
2015-04-12T20:52:36.553126+00:00 app[web.1]:     12:         <%=  post.content %>
2015-04-12T20:52:36.553129+00:00 app[web.1]:   app/views/posts/index.html.erb:10:in `_app_views_posts_index_html_erb___4115668764297473519_69883416675900'
2015-04-12T20:52:36.553127+00:00 app[web.1]:     13:     </li>
2015-04-12T20:52:36.553132+00:00 app[web.1]: 
2015-04-12T20:52:36.549950+00:00 app[web.1]:   Post Search (18.6ms) {index: "posts", type: "post", q: "better"}
2015-04-12T20:52:36.516050+00:00 app[web.1]:   Parameters: {"utf8"=>"✓", "q"=>"better"}
2015-04-12T20:52:36.515947+00:00 app[web.1]: Processing by PostsController#index as HTML
2015-04-12T20:52:36.551104+00:00 app[web.1]: Completed 500 Internal Server Error in 35ms (ActiveRecord: 0.0ms | Elasticsearch: 18.6ms)

的Gemfile

source 'https://rubygems.org'

ruby '2.1.3'
gem 'rails', '4.2.1'
gem 'pg'
gem 'sass-rails', '~> 5.0'
gem 'uglifier', '>= 1.3.0'
gem 'coffee-rails', '~> 4.1.0'
gem 'jquery-rails'
gem 'turbolinks'
gem 'jbuilder', '~> 2.0'
gem 'sdoc', '~> 0.4.0', group: :doc

group :development, :test do
  gem 'byebug'
  gem 'web-console', '~> 2.0'
  gem 'spring'
end

gem 'rails_12factor', group: :production
gem "figaro"
gem 'annotate', '~> 2.6.5', group: :development
gem 'pry-rails', group: :development
gem 'bootstrap-sass', '~> 3.3.4'
gem 'autoprefixer-rails'
gem 'font-awesome-sass'
gem 'ffaker'
gem 'react-rails', '~> 1.0.0.pre', github: 'reactjs/react-rails'
gem 'thin'
gem 'elasticsearch-model'
gem 'elasticsearch-rails'
gem 'bonsai-elasticsearch-rails'

模型

require 'elasticsearch/model'

class Post < ActiveRecord::Base
  include Elasticsearch::Model
  include Elasticsearch::Model::Callbacks
end

Post.import

调节器

class PostsController < ApplicationController
  def index
      if params[:q].nil?
      @posts = []
    else
       @posts = Post.search(params[:q])
    end
  end
end

视图

  <%= form_for posts_path, method: 'get' do |f| %>
    <%= f.label "Search for" %>
    <%= text_field_tag :q, params[:q] %>
    <%= submit_tag "Go", name: nil %>
  <% end %>

  <ul>
  <% @posts.each do |post| %>
    <li>
        <%=  post.content %>
    </li>
  <% end %>
</ul>

Heroku Bonsai附加组件

我跟着instructions at Heroku for installing Bonsai

创建了一个索引

curl -X POST http://[[MY BONSAI URL]]

得到了：

{"ok":true,"acknowledged":true}

正如我所提到的，我认为问题与我没有正确使用/指向索引有关。任何意见，将不胜感激！

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