https://nuteo.info/en/blog/Recent content in Blogs on nuteo.infoHugoen© 2026 NuteoMon, 03 Aug 2026 00:00:00 +0000https://nuteo.info/en/blog/postmortem-postgres-outage/Mon, 03 Aug 2026 00:00:00 +0000https://nuteo.info/en/blog/postmortem-postgres-outage/<h1 id="postmortem-the-day-postgres-took-down-production">Postmortem: the day Postgres took down production</h1> <blockquote> <p><strong>TL;DR</strong>: A missing index on a foreign key column, combined with a cron job running during peak hours, caused a 47-minute outage on a billing API.</p> </blockquote> <h2 id="timeline-all-times-utc">Timeline (all times UTC)</h2> <ul> <li><strong>14:00</strong> — Cron job starts: <code>cleanup_old_invoices.sh</code></li> <li><strong>14:02</strong> — Customer reports slow checkout</li> <li><strong>14:05</strong> — PagerDuty alert: API latency p99 &gt; 5s</li> <li><strong>14:08</strong> — On-call engineer (me) opens laptop</li> <li><strong>14:14</strong> — Identify: Postgres CPU 100%, hundreds of <code>DELETE</code> queries waiting</li> <li><strong>14:22</strong> — Kill the cron job manually → queries drain in ~30s</li> <li><strong>14:25</strong> — Service recovering</li> <li><strong>14:47</strong> — Full recovery, replication caught up</li> </ul> <p><strong>Total impact</strong>: 47 minutes of degraded service, ~120 failed transactions.</p>https://nuteo.info/en/blog/welcome/Mon, 03 Aug 2026 00:00:00 +0000https://nuteo.info/en/blog/welcome/<h1 id="-welcome">👋 Welcome</h1> <p>The site is live. The design works. The content pipeline is AI-assisted. Time to explain what this is and why.</p> <h2 id="whats-working">What&rsquo;s working</h2> <ul> <li>✅ Hugo + custom theme (dark by default, gradient hero)</li> <li>✅ Bilingual: TH + EN, switchable from the header</li> <li>✅ Sections: <a href="https://nuteo.info/en/work/">Work</a>, <a href="https://nuteo.info/en/guides/">Guides</a>, <a href="https://nuteo.info/en/tools/">Tools</a>, <a href="https://nuteo.info/en/blog/">Blog</a></li> <li>✅ RSS, sitemap, OpenGraph basics</li> <li>✅ Git-tracked for version control</li> <li>✅ Deployed via Docker + Caddy, zero-downtime</li> </ul> <h2 id="whats-next">What&rsquo;s next</h2> <ul> <li>🔍 Full-text search (Pagefind)</li> <li>💬 Comments via Giscus (GitHub Discussions)</li> <li>📊 Analytics (Plausible — privacy-friendly)</li> <li>📝 More guides, more postmortems</li> </ul> <h2 id="the-ai-experiment-in-one-paragraph">The AI experiment, in one paragraph</h2> <p>Every piece of content on this site was drafted by AI. Every line of theme CSS was written by AI. Every Docker config, every Caddyfile, every deploy script. I reviewed and edited. I made decisions. But the typing? AI.</p>