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38 dni, 20 godzin, 42 minuty temu
3 listopada, 2017

What does maximum-connections, CPU autoscaling, money and distributed systems have in common? Find out by solving a task: how many servers should you get to run your service, given that maximum allowed average CPU usage can be 80%. Edit it on With increasing number of hosts in a fleet, the CPU utilization should be successively smaller. The proportion and exact curve will be different for each sy...

Dziel się z innymi:
How to estimate host fleet size? Why keeping CPU at 30% might NOT be waste of money?

Architektura 43 dni, 9 godzin, 45 minut temu pwest 32 rozwiń

Ignore no more! How do you know the right maxThreads (Tomcat/Java) or maxConnections (IIS/.NET) for your application? What is it? Why do you need to set that?

How do you know the right maximum connections?

Inne 104 dni, 9 godzin temu pwest 39 rozwiń

Bob is a very successful guy. He is auto scaling his service by automatically adding hosts when the CPU increases, and he is removing them when CPU goes down. Dear Bob, there is a trap waiting for you around the corner.

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(Auto) scaling services by CPU? You are doing it wrong

Architektura 184 dni, 4 godziny, 8 minut temu pwest 65 rozwiń

Monitoring services is crucial, if you care about the application uptime. There are hundreds if not thousands parameters which you can (and should) monitor, related to CPU, network, hosts, application and so on. What are they? What are the non-obvious choices?

What service metrics should be monitored?

Sztuka programowania 252 dni, 10 godzin, 8 minut temu pwest 102 rozwiń

If you ever maintained a live system - I’m sure you must have used the min-max alarms. However, are they always the best tool for the job?

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Types of alarms - what's beyond min-max checks?

Sztuka programowania 319 dni, 6 godzin, 12 minut temu pwest 51 rozwiń

It seems that most people know the importance of software design patterns, best practices or continuous integration. While those subjects are important, there is one more equally essential term, which yields only one relevant result link on the first Google page. Meet Operational Excellence.

What is Software Operational Excellence?

Sztuka programowania 329 dni, 9 godzin, 50 minut temu pwest 53 rozwiń