如何在 rspec 中运行 elasticsearch 服务器

Question

在 Linux Mint 16 上运行，我在这里按照以下指南：http://pivotallabs.com/rspec-elasticsearchruby-elasticsearchmodel/ 使用 Ruby on Rails 应用程序设置 elasticsearch。

当我运行 rspec 时，当它到达 spec_helper.rb 这一行时：

config.before :each, elasticsearch: true do
    Elasticsearch::Extensions::Test::Cluster.start(port: 9200) unless Elasticsearch::Extensions::Test::Cluster.running?
  end 

我收到以下错误：

开始 2 个 Elasticsearch 节点..sh: 1: elasticsearch: not found

我认为这可能是路径问题....

所以我在 ~/.bashrc 中添加了以下内容：

export PATH="/etc/init.d:​​$PATH" 因为 sudo /etc/init.d/elasticsearch start 启动了 elasticsearch 服务。

然后我发出命令 source ~/.bashrc

这摆脱了 sh: 1: elasticsearch: not found 消息，取而代之的是 spec_helper.rb 中触发的错误消息：

............Starting 2 Elasticsearch nodes..
[!!!] Process failed to start (see output above)
F........

下面是我的 spec_helper.rb 文件中的配置块：

config.before :each, elasticsearch: true do
    Article.__elasticsearch__.client = Elasticsearch::Client.new host: 'http://localhost:9200'
    Article.__elasticsearch__.create_index!(force: true)
    Article.__elasticsearch__.refresh_index!
    Elasticsearch::Extensions::Test::Cluster.start(port: 9200) unless Elasticsearch::Extensions::Test::Cluster.running?
  end

  config.after :suite do
    Elasticsearch::Extensions::Test::Cluster.stop(port: 9200) if Elasticsearch::Extensions::Test::Cluster.running?
  end

关于问题可能是什么的任何想法？

编辑：如果我按照以下评论者的建议更改为端口 9250：

config.before :each, elasticsearch: true do
   Article.__elasticsearch__.client = Elasticsearch::Client.new host: 'http://localhost:9250'
    Article.__elasticsearch__.create_index!(force: true)
    Article.__elasticsearch__.refresh_index!
    Elasticsearch::Extensions::Test::Cluster.start(port: 9250) unless Elasticsearch::Extensions::Test::Cluster.running?
  end

  config.after :suite do
    Elasticsearch::Extensions::Test::Cluster.stop(port: 9250) if Elasticsearch::Extensions::Test::Cluster.running?
  end

我收到这个新错误：

An error occurred in an after hook
    Faraday::ConnectionFailed: Connection refused - connect(2) for "localhost" port 9250
    occurred at /home/nona/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/net/http.rb:879:in `initialize'

F........

Answer 1

我记得有一个类似的问题，我在 test_helper 中使用以下行解决了它：

ENV["TEST_CLUSTER_NODES"] = "1" # need to set so we trigger correct ES defaults

我通过查看Elasticsearch::Extensions::Test::Cluster 源并意识到Elasticsearch::Extensions::Test::Cluster.running? 正在返回true （因此不启动集群），除非设置了 TEST_CLUSTER_NODES 值。