Tag

Disk Usage

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Raymond Ops
Raymond Ops
Jun 6, 2025 · Operations

Master Linux Disk Usage: Using df and du Commands Effectively

This guide explains how to use the Linux df and du commands to inspect disk space, interpret their options such as -h, -k, -i, and -T, view partition usage, directory-specific usage, inode information, and avoid common pitfalls when measuring file sizes.

Disk UsageSystem Administrationcommand-line
0 likes · 4 min read
Master Linux Disk Usage: Using df and du Commands Effectively
JD Retail Technology
JD Retail Technology
Sep 1, 2023 · Backend Development

Root Cause Analysis and Resolution of Disk Usage Alert in a Java Application

After a Java system went live, a disk usage alert exceeding 90% prompted an investigation that uncovered a third‑party jar’s debug‑level Log4j configuration writing large logs to the root directory, and the issue was resolved by excluding the offending jar via Maven, highlighting the need for careful dependency management.

Disk UsageJavaLogback
0 likes · 4 min read
Root Cause Analysis and Resolution of Disk Usage Alert in a Java Application
Aikesheng Open Source Community
Aikesheng Open Source Community
Aug 9, 2023 · Databases

Understanding OceanBase Clog Directory Structure and Disk Usage Control

This article explains the physical layout of OceanBase's clog directory, the roles of log_pool and tenant_id sub‑directories, how log disk capacity is allocated via configuration parameters, the concept of meta tenants and log streams, and provides scripts for monitoring clog usage and disk utilization.

ClogDisk UsageOceanBase
0 likes · 11 min read
Understanding OceanBase Clog Directory Structure and Disk Usage Control
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
Wukong Talks Architecture
Wukong Talks Architecture
Oct 10, 2022 · Operations

Diagnosing 100% Disk Usage and Cleaning Docker Logstash Container Logs

This article explains how to identify the cause of a full disk on a Linux server by using df and du commands, discovers that oversized Logstash container logs are the culprit, and presents three practical solutions—including manual cleanup, a periodic script, and Docker log size limits—to reclaim space.

Disk UsageDockerLog Cleanup
0 likes · 8 min read
Diagnosing 100% Disk Usage and Cleaning Docker Logstash Container Logs
Efficient Ops
Efficient Ops
Aug 18, 2022 · Operations

How to Quickly Identify Disk Space Hogs on Linux Servers

This guide shows step‑by‑step Linux commands—df, du, find, lsof, and tune2fs—to pinpoint large directories, uncover hidden space used by deleted files, and adjust reserved root space, helping you resolve mysterious disk‑space alerts efficiently.

Disk UsageServer Operationsdf
0 likes · 4 min read
How to Quickly Identify Disk Space Hogs on Linux Servers
Efficient Ops
Efficient Ops
Apr 5, 2022 · Operations

Master Linux Disk Space Analysis with ncdu, dust, duu, diskus & tin‑summer

This article introduces several Linux disk‑usage analysis tools—ncdu, dust, duu, diskus, and tin‑summer—detailing their installation on Ubuntu 21.10, key command‑line options, and practical usage examples for quickly identifying and cleaning large directories and files.

Disk Usagediskusdust
0 likes · 15 min read
Master Linux Disk Space Analysis with ncdu, dust, duu, diskus & tin‑summer
Full-Stack Internet Architecture
Full-Stack Internet Architecture
Dec 10, 2020 · Operations

Root Cause Analysis and Resolution of Disk Exhaustion During a Promotion Event

During a large‑scale promotion, an online service suffered severe disk usage spikes due to undeleted log files held open by an SLS process, and the issue was resolved by identifying the open handles, terminating the process, and implementing log‑level controls to prevent recurrence.

Disk UsageLog ManagementSLS
0 likes · 7 min read
Root Cause Analysis and Resolution of Disk Exhaustion During a Promotion Event
Architecture Digest
Architecture Digest
Dec 8, 2020 · Databases

Resolving MySQL Disk Usage 100% Issue by Removing InnoDB Fragmentation

This article describes a MySQL disk‑space exhaustion problem, explains why data_free can consume tens of gigabytes, and provides step‑by‑step commands—including schema analysis, table engine conversion, service control, and file removal—to defragment InnoDB tables, reclaim space, and successfully restore a backup.

DatabaseDisk Usagefragmentation
0 likes · 6 min read
Resolving MySQL Disk Usage 100% Issue by Removing InnoDB Fragmentation