如何为 searchkick gem 设置不同的端口？

Question

我已经在cloud9的端口8081上运行elasticsearch。

/workspace/elasticsearch-6.1.1/bin $ ./elasticsearch -E http.port=8081

然后我在 gemfile 中添加“searchkick”gem，然后捆绑安装

然后我在模型中添加 searchkick 作为

class Book < ActiveRecord::Base
    searchkick
end

然后我运行命令

Book.reindex

我收到以下错误

2.3.4 :001 > Book.reindex
Faraday::ConnectionFailed: Failed to open TCP connection to localhost:9200 (Connection refused - connect(2) for "localhost" port 9200)
        from /usr/local/rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/net/http.rb:882:in `rescue in block in connect'
        from /usr/local/rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/net/http.rb:879:in `block in connect'
        from /usr/local/rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/timeout.rb:91:in `block in timeout'
        from /usr/local/rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/timeout.rb:101:in `timeout'
        from /usr/local/rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/net/http.rb:878:in `connect'
        from /usr/local/rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/net/http.rb:863:in `do_start'
        from /usr/local/rvm/rubies/ruby-2.3.4/lib/ruby/2.3.0/net/http.rb:852:in `start'

这是有道理的，因为它假设弹性搜索服务器在默认的 9200 上运行，但我在 8081 上运行它。我如何告诉 searchkick gem 连接到 8081 端口而不是 9200？我很感激任何帮助！谢谢！

Answer 1

创建一个初始化程序config/initializers/elasticsearch.rb：

ENV['ELASTICSEARCH_URL'] = 'http://localhost:8081'

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