A common issue with graceful pod shutdowns on Amazon EKS, leading to 502 errors during deployments, has been addressed. The problem arises from a timing discrepancy between Kubernetes removing a pod from service endpoints and the AWS Load Balancer Controller deregistering the pod's IP address. This gap allows the load balancer to continue sending traffic to pods that are already terminating, resulting in 502 errors. The solution involves implementing a preStop hook with a sleep delay to keep the pod alive during deregistration and tuning the deregistration delay, effectively preventing traffic from being routed to unavailable instances. AI
RANK_REASON The item describes a technical solution to a specific operational problem within a cloud infrastructure context.
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