Kristian Skoeld

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Top Stories by Kristian Skoeld

In my first blog Act 1 - The What and Why I talked about the benefits and some risks around using a Content Delivery Network (CDN). Today I will cover some details around some common misunderstandings regarding how to monitor CDNs and explain the right monitoring strategy. Which monitoring options do you have? In order to manage any complex system you need quality data as quickly as possible. All the enterprise CDN solutions offer some level of insight on the performance they deliver. It is basically based on high level aggregation of relevant log file data and tells you for example how many requests have been received, how much data has been sent out, what status codes were returned, how fast the servers responded, etc. However this data has two major problems: It is not detailed enough It's provided by the vendor you want to monitor So instead of only relying on thi... (more)

Welcome to the Show of CDN Monitoring: Act 3

In my previous two posts Act 1 - The What and Why and Act2 - The How and How Not I covered the main benefits of CDNs and what type of tools are needed to monitor them. Now, I want to go into some detail of why you need to consider monitoring them in the first place. Let's face it: if things work well enough, why worry about monitoring them? Of course it is great to be able to see all the details, but do I really need all that information? Aren't the CDNs doing a good enough job? The answer to that last one: Yes, CDNs are doing a very good job ... most of the time. How can you k... (more)

Welcome to the Show of Content Delivery Networks

"Step right in. You will witness a show of magic and wonders, passion and trust, speed and misunderstandings." a (slightly altered) catch phrase that keeps popping in my head when talking to companies in regards to managing Content Delivery Networks (CDN). Apart from the misconception that a CDN will solve all performance problems one of the great unknowns seems to be how to actually monitor CDNs the right way. And as we all know: you can't manage what you don't understand! So in three "Acts" I will walk you through the main purpose of CDNs, how such systems have to be monitored ... (more)