🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026

📖 ~1 min read

Table of contents
  1. Symptom & Impact
  2. Environment & Reproduction
  3. Root Cause Analysis
  4. Quick Triage
  5. Step-by-Step Diagnosis
  6. Solution – Primary Fix
  7. Solution – Alternative Approaches
  8. Verification & Acceptance Criteria
  9. Rollback Plan
  10. Prevention & Hardening
  11. Related Errors & Cross-Refs
  12. References & Further Reading

Symptom & Impact

CPU remains high due to tracker-miner or indexing services, causing fan noise and sluggish desktop performance.

Environment & Reproduction

Ubuntu 22.04 GNOME desktop with large home directories or network-mounted folders. Reproduce by adding large media trees to indexed paths.

Root Cause Analysis

Indexer repeatedly scans changing files or corrupted metadata store, leading to continuous reprocessing loops.

Quick Triage

Identify culprit with top or htop, then inspect per-user services using systemctl –user status tracker-miner-fs-3.service.

Step-by-Step Diagnosis

Check tracker status via tracker3 status, inspect journalctl –user -u tracker-miner-fs-3, and review indexed directory include rules.

Illustrative mockup for ubuntu-22-04-lts — ubuntu2204-common-problem-09-highcpu-01.webp
Background indexing process consumes high CPU persistently. — Illustrative mockup — Progressive Robot

Solution – Primary Fix

Exclude large volatile paths, reset index database if corrupted, and restart user services. Keep only necessary directories indexed.

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Illustrative mockup for ubuntu-22-04-lts — ubuntu2204-common-problem-09-highcpu-02.webp
Tune indexing scope and reset Tracker database safely. — Illustrative mockup — Progressive Robot

Solution – Alternative Approaches

Disable desktop indexing entirely for workstation profiles where search indexing provides little operational value.

Verification & Acceptance Criteria

CPU usage returns to baseline, interactive responsiveness improves, and indexing completes without recurring loops.

Rollback Plan

Re-enable default indexing settings and restore previous tracker configuration files if search coverage is reduced too far.

Prevention & Hardening

Exclude build/cache directories by policy and monitor user-service CPU hotspots after major data migrations.

tracker-miner-fs high CPU, tracker database busy, repeated file monitor events.

Related tutorial: View the step-by-step tutorial for Ubuntu 22.04 LTS.

View all Ubuntu 22.04 LTS tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

GNOME Tracker docs, Ubuntu desktop performance tuning references.

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