OOMKilled at Scale: Tuning JVM Heap in Kubernetes

A Java service keeps getting OOMKilled in Kubernetes even though memory requests look fine on paper. This episode explains why JVM heap defaults ignore container limits, how to set maximum heap size correctly, and what interviewers expect when they probe your understanding of Java memory in containerized environments. Covers Xmx flags, UseContainerSupport, native memory overhead, and the tradeoffs between requests and limits.

Full interview prep guides and scenario walkthroughs: DevOpsInterview.Cloud