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Zombie Process

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Data Thinking Notes
Data Thinking Notes
Nov 9, 2022 · Operations

Why Did My Hadoop Node’s Memory Spike at 3 AM? A Step‑by‑Step Debug Guide

This article details a systematic investigation of a Hadoop NameNode/DataNode that showed high memory usage at 3 AM, identifies zombie crond/sendmail/postdrop processes caused by a failed Postfix service, and provides cleanup commands and preventive measures for memory, disk, and inode issues.

Disk UsageHadoopInode
0 likes · 5 min read
Why Did My Hadoop Node’s Memory Spike at 3 AM? A Step‑by‑Step Debug Guide
Ops Development Stories
Ops Development Stories
Sep 15, 2021 · Cloud Native

How Linux Process States Lead to Orphan & Zombie Issues in Docker and Kubernetes

This article explains the three‑ and five‑state process models, Linux task_struct states, and how orphan and zombie processes arise in containers, detailing PID namespaces, Docker's pause container, signal handling, and practical solutions for Kubernetes pods.

DockerKubernetesLinux
0 likes · 16 min read
How Linux Process States Lead to Orphan & Zombie Issues in Docker and Kubernetes
Efficient Ops
Efficient Ops
Jun 18, 2018 · Fundamentals

Why Do Zombie Processes Appear in Linux and How to Prevent Them?

This article explains Linux process fundamentals, scheduling, the creation of zombie processes, their causes, and practical methods to avoid them, while also comparing processes and threads and discussing multithreading concepts and synchronization techniques.

LinuxProcessScheduling
0 likes · 14 min read
Why Do Zombie Processes Appear in Linux and How to Prevent Them?