管理平台性能比较不一致 [英] Redmine Perfomance Inconsistency

问题描述

我已经部署在Linux x86_64的系统上管理平台的实例，我有一个有趣的性能inconsistencey问题作斗争。它的行为是这样的：

I have a redmine instance deployed on a Linux x86_64 system and I am struggle with a funny performance inconsistencey issue. It behave like this:

单独将其放置几个小时（无请求向应用的话），然后建立一个连接，它需要很长的时间来响应于第一几个请求（可以是15秒+，有时每对作为不良反应在约1分钟）。前几个请求时，它的性能非常快，几乎是瞬间，我可以从日志中看到，它需要小于100ms来回应。

Leave it alone for a couple of hours (no request to the application at all) then establish a connection, it takes a very long time to response to the first few requests (can be as bad as 15 seconds+, sometimes every for response at about 1 minute). After the first few requests, it performance very quickly, almost instantly where I can see from the log that it takes less than 100ms to response.

我已经尝试了几个选项利用杂种来运行它，它部署在乘客的Nginx，并在乘客的Apache。该行为只是可重复执行。我从被保持忙碌的测试实现，不会有问题的。

I have tried a couple of options to run it using mongrel, deployed it on passenger-Nginx, and on passenger-Apache. The behaviour simply reproduceable. I realised from the testing when it is keeping busy, there will be no problem at all.

任何想法是什么一回事呢？我怎样才能提高呢？

Any ideas what it is all about? How can I improve this?

有关提前提出建议，非常感谢。

Many thanks for any advices in advance.

推荐答案

这个问题很可能是由乘客池idleling出来造成的。您可以增加PassengePoolIdleTime为更大的数字，或者如果你不婉它超时值都设置为0的Apache配置类似下面应该可以解决问题。

The issue is most likely caused by the the Passenger pool idleling out. You can either increase the PassengePoolIdleTime to a larger number, or if you don't wan it to time out at all set the value to 0. An Apache config something like below should fix the issues

<VirtualHost *:80>
    DocumentRoot /path/to/redmine/site/public
    ServerName example.com
    PassengerPoolIdleTime 0
        <Directory "/path/to/redmine/site/public">
                PassengerEnabled on
                AllowOverride
                Options -MultiViews
        </Directory>
</VirtualHost>

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