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      <title>如何查看数据库链接被那段程序占用？</title>
      <description>&lt;p&gt;最近出现了 could not obtain a database connection within 5 seconds 错误，目前连接池配 10 个，puma 两个 worker。如何查看被占用的连接分别是哪些线程，哪段程序？&lt;/p&gt;</description>
      <author>jetspeed</author>
      <pubDate>Fri, 19 Jun 2020 22:56:44 +0800</pubDate>
      <link>https://ruby-china.org/topics/39986</link>
      <guid>https://ruby-china.org/topics/39986</guid>
    </item>
    <item>
      <title>如何监听队列</title>
      <description>&lt;p&gt;需要一直轮询队列上是否有新消息，是否有好的 gem?&lt;/p&gt;</description>
      <author>jetspeed</author>
      <pubDate>Wed, 11 Sep 2019 14:27:53 +0800</pubDate>
      <link>https://ruby-china.org/topics/39038</link>
      <guid>https://ruby-china.org/topics/39038</guid>
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    <item>
      <title>如何过滤 response 敏感词</title>
      <description>&lt;p&gt;我有一个 rails app 通过 json 对外提供数据，有些字段得过滤成***，&lt;/p&gt;

&lt;p&gt;比如网银里账号都显示成 123****456 这种形式。&lt;/p&gt;

&lt;p&gt;有没有 gem 或者解决方案，可以通过一个配置，配置需要过滤的字段，对所有的对外 response 都根据配置文件过滤成***形式。&lt;/p&gt;</description>
      <author>jetspeed</author>
      <pubDate>Sat, 02 Sep 2017 18:22:29 +0800</pubDate>
      <link>https://ruby-china.org/topics/34002</link>
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