Django可以伸缩吗?

我正在用Django构建一个web应用程序。我选择Django的原因是:

我想使用免费/开源工具。我喜欢Python，觉得它是一种长期的语言，而对于Ruby，我不确定，而PHP似乎是一个巨大的麻烦。我正在为一个想法构建一个原型，并没有过多地考虑未来。开发速度是主要因素，而且我已经了解Python。我知道迁移到谷歌应用程序引擎将更容易，如果我选择这样做在未来。我听说Django很“不错”。

现在我越来越接近于考虑出版我的作品，我开始担心规模问题。我找到的关于Django伸缩能力的唯一信息是Django团队提供的(我不是说什么要忽略它们，但这显然不是客观的信息…)

我的问题:

目前在Django上构建的“最大”站点是什么?(我主要通过用户流量来衡量规模) Django能每天处理10万名用户，每个用户访问站点几个小时吗? 像Stack Overflow这样的站点可以在Django上运行吗?

当前回答

如果你想使用开源，那么你有很多选择。但是python是其中最好的，因为它有很多库和一个超级棒的社区。下面这些原因可能会改变你的想法:

Python is very good but it is a interpreted language which makes it slow. But many accelerator and caching services are there which partly solve this problem. If you are thinking about rapid development then Ruby on Rails is best among all. The main motto of this(ROR) framework is to give a comfortable experience to the developers. If you compare Ruby and Python both have nearly the same syntax. Google App Engine is very good service but it will bind you in its scope, you don't get chance to experiment new things. Instead of it you can use Digital Ocean cloud which will only take $5/Month charge for its simplest droplet. Heroku is another free service where you can deploy your product. Yes! Yes! What you heard is totally correct but here are some examples which are using other technologies Rails: Github, Twitter(previously), Shopify, Airbnb, Slideshare, Heroku etc. PHP: Facebook, Wikipedia, Flickr, Yahoo, Tumbler, Mailchimp etc.

结论是一个框架或语言不会为你做所有的事情。一个更好的架构，设计和策略会给你一个可扩展的网站。Instagram是最大的例子，这个小团队管理着如此庞大的数据。这里有一个关于它的架构的博客，一定要读。

2016-01-21 16:50:17

其他回答

"What are the largest sites built on Django today?" There isn't any single place that collects information about traffic on Django built sites, so I'll have to take a stab at it using data from various locations. First, we have a list of Django sites on the front page of the main Django project page and then a list of Django built sites at djangosites.org. Going through the lists and picking some that I know have decent traffic we see: Instagram: What Powers Instagram: Hundreds of Instances, Dozens of Technologies. Pinterest: Alexa rank 37 (21.4.2015) and 70 Million users in 2013 Bitbucket: 200TB of Code and 2.500.000 Users Disqus: Serving 400 million people with Python. curse.com: 600k daily visits. tabblo.com: 44k daily visits, see Ned Batchelder's posts Infrastructure for modern web sites. chesspark.com: Alexa rank about 179k. pownce.com (no longer active): alexa rank about 65k. Mike Malone of Pownce, in his EuroDjangoCon presentation on Scaling Django Web Apps says "hundreds of hits per second". This is a very good presentation on how to scale Django, and makes some good points including (current) shortcomings in Django scalability. HP had a site built with Django 1.5: ePrint center. However, as for novemer/2015 the entire website was migrated and this link is just a redirect. This website was a world-wide service attending subscription to Instant Ink and related services HP offered (*). "Can Django deal with 100,000 users daily, each visiting the site for a couple of hours?" Yes, see above. "Could a site like Stack Overflow run on Django?" My gut feeling is yes but, as others answered and Mike Malone mentions in his presentation, database design is critical. Strong proof might also be found at www.cnprog.com if we can find any reliable traffic stats. Anyway, it's not just something that will happen by throwing together a bunch of Django models :)

当然，还有更多感兴趣的网站和博主，但我必须在某个地方停下来!

一篇关于使用Django构建高流量网站michaelmoore.com的博文，将其描述为排名前10,000的网站。Quantcast数据和compete.com数据。

(*)编辑的作者，包括这些引用，曾经在该项目中作为外包开发人员工作。

2009-05-20 07:41:16

如果您的站点包含一些静态内容，那么在前面放置一个Varnish服务器将极大地提高您的性能。即使是一个盒子也能轻易产生100 Mbit/s的流量。

注意，对于动态内容，使用像Varnish这样的东西变得更加棘手。

2009-08-22 08:45:45

是的，它可以。它可以是Django with Python或Ruby on Rails。它仍然会缩放。

有几种不同的技术。首先，缓存不是可伸缩性。除了硬件平衡器之外，还可以有多个应用服务器以nginx作为前端平衡。为了在数据库端扩展，如果你走RDBMS的路，你可以在MySQL / PostgreSQL中使用读从。

Django中一些大流量网站的例子如下:

当他们还在那里的时候。通用共享评论管理器所有与报纸相关的网站:《华盛顿邮报》等。

你会有安全感。