---
title: 'A 4.8 GB error_log: 15 million lines, 106 real problems'
url: 'https://docs.agenteum.top/blog/2026-09-29-error-log-triage-4-8-gb'
markdown: 'https://docs.agenteum.top/blog/2026-09-29-error-log-triage-4-8-gb.md'
date: '2026-09-29'
description: 'How a 4.79 GB error_log became 106 real problems in one streaming pass: dedup before normalization, 20 MB of RAM, totals verified against the source.'
taxonomy:
  category:
    - tech
  tag:
    - logs
    - php
    - wordpress
    - woocommerce
    - performance
  archives_month:
    - sep_2026
  archives_year:
    - '2026'
---

# A 4.8 GB error_log: 15 million lines, 106 real problems

---

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