tag

#reliability

4 posts

SRE & DevOpsDeep Dive August 27, 2026 6 min read

Kubernetes API Priority and Fairness: Protecting the Control Plane Under Load

How Kubernetes classifies API requests, assigns concurrency seats, queues flows with shuffle sharding, and preserves control-plane access during overload.

#kubernetes#apiserver#reliability

SRE & DevOpsDeep Dive August 27, 2026 6 min read

Kubernetes Lease API: Heartbeats, Leader Election, and Failure Boundaries

How Kubernetes Lease objects carry node heartbeats and leader state, how clients renew them, and why a lease alone cannot fence a stale writer.

#kubernetes#leases#leader-election

SRE & DevOpsDeep Dive August 9, 2026 4 min read

Kubernetes QoS Classes: How Requests and Limits Shape Eviction and Scheduling

A precise guide to Guaranteed, Burstable, and BestEffort Pods, including request math, cgroup enforcement, OOM behavior, and node-pressure eviction.

#kubernetes#resources#scheduling

SRE & DevOpsDeep Dive July 9, 2026 5 min read

SLOs, SLIs, and Error Budgets: The Math Behind SRE Decision-Making

How Service Level Indicators, Objectives, and error budgets turn 'be reliable' into a concrete, measurable number that actually drives engineering decisions.

#sre#slo#reliability