π ~1 min read
Table of contents
Symptom & Impact
Root filesystem reaches capacity and services fail to write state files.
Environment & Reproduction
Triggered by verbose logging and missing journal retention limits.
Root Cause Analysis
journald storage policy allows unlimited growth relative to available disk.
Quick Triage
Assess current journal footprint and identify top noisy services quickly.
Step-by-Step Diagnosis
Review disk usage, journal vacuum opportunities, and service error bursts.
Solution – Primary Fix
Vacuum old logs and enforce sensible journal size and age thresholds.
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Solution – Alternative Approaches
Forward logs to external collectors and reduce local retention.
Verification & Acceptance Criteria
Disk free space stabilizes and journal growth remains within configured budget.
Rollback Plan
Restore previous journald settings and archived logs if audit needs require.
Prevention & Hardening
Set per-host log budgets and alerting for sudden storage growth.
Related Errors & Cross-Refs
Often appears with crash loops and runaway debug logging.
Related tutorial: View the step-by-step tutorial for Debian 10.
View all Debian 10 tutorials on the Tutorials Hub β
Browse all common problems & solutions on the Tutorials Hub.
References & Further Reading
systemd-journald retention and storage management references.
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