City Cloud advanced guide: having fun with horizontal scaling. Part 2.

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Welcome back to our series of articles about horizontal scaling. On our first part we gave you an overview of what this is all about, starting with one website and ending up with it, divided between two servers. Now, it’s time to take it up a notch. We will go over a simple load balancing scheme, using Varnish, a popular load …

City Cloud advanced guide: having fun with horizontal scaling – Part 1.

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It’s that time of your company or personal project where you find yourself staring at your slow website and thinking “why didn’t I do something to prevent this?”. If you paid attention, you’ve probably scaled your virtual server vertically and gained a few extra connections to your site. But even that might not be enough in the long run. We …

New image: WordPress pre-installed and tuned for performance

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WordPress is the software behind one of the most widely used blog platforms. That’s right, it’s an entire platform that is also used to build entire websites due to its flexibility and hundreds of excellent plugins, many of them free. Since WordPress is quite heavy and resource intensive, we have decided to build an image using Nginx instead of Apache, …

New image: L.E.M.P.

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L.A.M.P. is a known acronym that describes a server with GNU/Linux as the operating system, some version of Apache for serving web files, MySQL as the database and PHP for the preferred scripting language. Since performance has entered a privileged place due to overall increased complexity of internet sites, a new acronym has surfaced in recent years: L.E.M.P. The main …

Vertically scaling your virtual server on City Cloud

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Any website on the Internet is subject to a sudden increase of traffic without prior notice. This situation could clog our server if we don’t plan ahead. Until virtualization and cloud computing came around, scaling meant increasing costs, paying for idle time and using a great deal of resources in terms of hardware and manpower. Thankfully, with Infrastructure as a …

New image on City Cloud: Windows Server 2008R2 and MS-SQL on steroids!

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We have had Windows 2008 Server images on City Cloud for a while now. We also have Windows 2008 and MS-SQL Server integrated but recently we implemented VirtIO drivers for Windows 2008R2 and according to our tests, the speed improvement is considerable. So now, in order to save you quite a bit of time and offer you something with good …

New upgrades completed. Even better performance!

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A few hours ago we completed yet another upgrade of the City Cloud environment. This time it was mostly software related and much of the new features and performance enhancements are behind the scenes updates. The management node was inaccessible during the time of the updates but is back online now. In addition to general performance improvement this upgrade also …

City Cloud beats out Amazon EC2 and Rackspace in independent performance test – up to 3 times faster!

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Cloud Harmony is a company that focuses solely on benchmarking the leading cloud providers (IaaS). The goal is to give the public independent data to determine performance metrics and be able to compare the leading providers. Performance is one of the key factors that affect the choice of cloud provider today. However it has long been difficult to easily compare. …

Maintenance work in City Cloud

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The first step of our plan to remove the City Cloud beta stamp is getting close. On Friday the 26th November between 00:30 and 05:30 upgrades of the platform will be made which will cause service downtime. The downtime for each individual VM can vary depending on configuration. During the maintenance window upgrades of both hardware and software will be …