What does it mean that Kubernetes Pods are evicted? They are terminated, usually the result of not having enough resources. But why does this happen? Eviction is a process where a Pod assigned to a Node is asked for termination. One of the most common cases in Kubernetes is Preemption, where in order to schedule a new Pod in a Node with limited resources, another Pod needs to be terminated to leave resources to the first one.
Mickael Alliel 5 Min read September 20th, 2022 DevOps Kubernetes
Digital twins have become somewhat of a buzzword in the past couple of years. But what exactly are they? A digital twin, as its name indicates, is a non-physical copy of a physical object. Just like a digital scan of a physical picture. This virtual element enables a real-time view of all relevant data coming from said object. Depending on the system being studied, specific sensors can be tracked and monitored.
It’s not surprising that most failures are caused by a change somewhere in a system, such as a new code deployment, configuration change, auto-scaling activity or auto-healing event. As you investigate the root cause of an incident, the best place to start is to find what changed. To understand what change caused a problem and what effects propagated across your stack, you need to be able to see how the relationships between stack components have changed over time.
