PHP Web 应用程序什么时候对于普通 Web 主机来说变得太大
我问这个问题是因为我希望开始开发一个在线社区（社交网络），并且我不愿意联系我现有的网络主机，只是在我的帐户上添加一个域并使用它们。他们给我无限的带宽和磁盘空间，但我的意思是很明显 Google、Twitter、Facebook 和 Yahoo 等不只是使用普通的网络主机，不是吗？他们将拥有数据中心和云服务器，天知道还有什么。所以我的问题是，Web 应用程序何时需要使用云服务器、数据中心等？
I'm asking this because i'm hoping to start developing an online community (social network) and i'm reluctant to contact my existing web host and just add a domain on to my account and just use them. They give me unlimited bandwidth & diskspace but i mean its obvious to say that Google, Twitter, Facebook and Yahoo, etc, doesnt just use your average web host do they? They would have datacentres and cloud servers and god know what else. So my question is, when does a web application warrant using cloud servers, data centres, etc?
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如果您喜欢自己进行配置，则应该从一开始就考虑 VPS，否则我会要求您的网络主机预先根据您的估计将发生的情况（流量、负载、访客等）为您提供继续选项像这样）。
如果您的计划没有成功或者花费的时间比您想象的要长，您会很高兴以较低的成本与提供商/基本计划达成和解，直到事情变得严重为止。
如果您的计划确实实现了，您的托管公司可能会因负载过大而暂时关闭您的帐户。您可能希望在此时制定一个计划，可能会升级到成本更高但效果更好的定价计划；或者将主机全部切换到 VPS 或类似的东西。
（有很多如果……但最后）如果您当前的托管公司在您接近他们时看起来不够聪明或不够开放，请毫不犹豫地询问他们的竞争对手 - 他们可能会很乐意抢走您作为客户。另外，您问得越多，当您询问下一个可能的提供商时，您事先了解的就越多 - 您在该领域的能力将会增强。
玩得开心！
If you like to do your own configuration, you should look into a VPS from the beginning, otherwise I'd ask your web host upfront to give you options for continuation, based on what your estimate will happen (traffic, load, visitors, stuff like that).
If your plans don't succeed or it takes longer than you assumed, you'll be happy that you settled with a provider/basic plan for a lower cost until things got heavy.
If your plans does indeed come through, your hosting company could probably turn your account off temporarily due to too much load. You would want to have a plan for this moment, probably by moving up to a more costly but also more performing pricing plan; or switching hosting all together to a VPS or something similiar.
(Many if's there... but finally) if your current hosting company does not seem clever or open enough when you approach them, don't hesitate to ask around with their competitors - they would probably be happy to steal you as a customer. Plus, the more you ask, the more you know on beforehand as you ask the next possible provider - your competence in this area will grow.
Have fun!