Nodes with PID Pressure in Kubernetes is an incident type that occurs when a Kubernetes cluster node experiences PID pressure, meaning that it may not be able to start more containers. This is a rare condition where a pod or container spawns too many processes and starves the node of available process IDs. Each node has a limited number of process IDs to distribute amongst running processes; and if it runs out of IDs, no other processes can be started. Kubernetes lets you set PID thresholds for pods to limit their ability to perform runaway process-spawning, and a PID pressure condition means that one or more pods are using up their allocated PIDs and need to be examined.


Nodes with PID Pressure in Kubernetes

This incident type refers to an alert triggered due to high request duration on CoreDNS, which is a DNS server that translates domain names to IP addresses. The alert indicates that the request duration process for CoreDNS is high, meaning that it is taking longer than expected to process DNS requests. This can cause delays or failures in the resolution of domain names, leading to potential service disruptions or outages.


High Request Duration on CoreDNS

This incident type refers to an issue where the MongoDB instance is down. This can cause disruption to any applications or services that rely on the database. It requires immediate attention from the appropriate personnel to diagnose and resolve the issue to minimize the impact on the affected systems.


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