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system troubleshooting

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Refining Core Development Skills
Refining Core Development Skills
Dec 23, 2024 · Operations

Understanding the Linux “D” (Uninterruptible Sleep) Process State

The article explains the meaning of a process being in the “D” state on Linux, describing it as an uninterruptible sleep caused by blocked I/O, how to identify it with tools like ps or top, why it cannot be killed, and common troubleshooting steps.

D statelinuxprocess state
0 likes · 5 min read
Understanding the Linux “D” (Uninterruptible Sleep) Process State
Hujiang Technology
Hujiang Technology
Dec 1, 2017 · Operations

Practical Guide to Performance Testing and Troubleshooting in Linux Environments

This article outlines a comprehensive, step‑by‑step approach to performance testing and root‑cause analysis for backend services, covering environment validation, tool selection, Linux system limits, dependency checks, empty‑endpoint verification, throughput calculation, log monitoring, and essential Linux commands such as netstat, vmstat, mpstat, iostat, top and free.

JMeterPerformance Testingbackend optimization
0 likes · 20 min read
Practical Guide to Performance Testing and Troubleshooting in Linux Environments
Architecture Digest
Architecture Digest
Nov 1, 2017 · Operations

A Structured Approach to Online System Issue Diagnosis and Recovery

This article outlines a systematic methodology for understanding, evaluating, and quickly resolving production system incidents by categorizing system layers, assessing impact, employing Linux diagnostic tools, and designing fault‑tolerant mechanisms to minimize downtime and maintain core functionality.

Linux toolsbackendincident management
0 likes · 12 min read
A Structured Approach to Online System Issue Diagnosis and Recovery