连接未建立后在JRuby中具有多线程环境 [英] Having a Multithreaded environment in JRuby after ConnectionNotEstablished

问题描述

我有Rails(4.2.6)应用程序，在其中我使用了由Rufus :: Scheduler引起的线程进行后台数据处理.我在开发环境中有可用的应用程序，但是当我将其移至Nginx +载机上进行生产时，即使没有足够的负载，也会出现 ActiveRecord :: ConnectionNotEstablished 异常.

I have Rails (4.2.6) App where I use Thread(s) for background data processing caused by the Rufus::Scheduler. I have the working app in the development env, but when I move it to production on nginx + passenger I get exceptions ActiveRecord::ConnectionNotEstablished, even without sufficient load.

从线程执行的对ActiveRecord :: Base的所有后代的所有调用都包装在

All calls for ActiveRecord::Base's descendants that performing from Threads - are wrapped into

ActiveRecord::Base.connection_pool.with_connection{}

我以前从未使用过多线程环境，但是在对问题进行了调查之后，我建议可能是问题所在.

I've never used multi threaded environments before, but after some surveying of the problem, I suggest that probably this is the matter.

在JRuby下尝试使用它是否合理，并且首选哪种容器?

Is it reasonable to try it under JRuby and what containter is prefereable?

主机系统是Ubuntu 14.04 x86_64.

The host system is Ubuntu 14.04 x86_64.

推荐答案

OMG

我添加了gem'puma' http://puma.io/并使用了Nginx代理，它可以正常工作!!我认为，该解决方案看起来比JRuby容易.

I've included gem 'puma' http://puma.io/ and used Nginx proxy and it works!! This solution looks easier than JRuby, I think.

以前，我曾经使用过Vehicle，也有类似的惊喜.

Previously I used Passenger and had similar surprises.

首先，乘客进入空闲状态时会杀死线程.我已经在全球范围内启动了Thread和Rufus，而Passenger在开始2分钟后就将其杀死.

Firstly, Passenger kills thread when they become idle state. I have globally initiated Thread and Rufus, and Passenger was killing they after 2 minutes from start.

第二，这个问题，这是乘客出乎意料的.

Secondary, this issue and it was unexpected from Passenger.

好吧，问题已解决，该备忘录可能会对某人有所帮助.

Well, the issue is resolved and probably this memo could help somebody.

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