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EKS graceful pod shutdown fix prevents 502 errors during deployments

By PulseAugur Editorial · [1 sources] ·

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.

Read on dev.to — LLM tag →

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EKS graceful pod shutdown fix prevents 502 errors during deployments

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The item describes a technical solution to a specific operational problem within a cloud infrastructure context.
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  1. dev.to — LLM tag TIER_1 English(EN) · claire nguyen ·

    Why graceful pod shutdown on EKS kept throwing 502s on deploy

    <p><strong>TL;DR:</strong> Graceful pod shutdown on EKS needs a preStop delay plus tuned ALB deregistration, otherwise the load balancer keeps routing to terminating pods and returns 502s mid-rollout. Here's the fix we shipped and how we tested it.</p> <p>During a routine deploy …

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