Technical
Celery: keep a task queue from becoming a black box
Celery accepts jobs — then forgets them if nobody monitors queues, dead workers and tasks stuck in silent retry.
4 min read · Jun 16, 2026
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Library
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Technical
Gunicorn and Nginx: assign roles properly for Django
Gunicorn runs Django; Nginx serves static files and protects the socket. Swap or merge those roles and Python workers spend their time on favicons.
4 min read · Jun 15, 2026
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Technical
PM2 in production: restart Node.js without dropping requests
A brutal pm2 restart drops connections mid-request. Between reload, cluster mode, and graceful shutdown, the difference shows up as seconds of outage—or none at all.
5 min read · Jun 13, 2026
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Technical
Node.js memory leak: watch the process before the forced restart
Restarting Node every night hides the leak — until the interval is not enough and PM2 loops on OOM kill.
4 min read · Jun 12, 2026
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Technical
PHP profiling: measure before optimizing a line
Replacing a loop with SQL without profiling is random optimization. Blackfire, Xdebug, and SPX exist to prevent that.
3 min read · Jun 11, 2026
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Technical
Invalidating OPcache during deployment without serving old code
Deploying PHP without touching OPcache bets that no worker keeps old compiled bytecode — until the next ghost bug.
4 min read · Jun 9, 2026
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Technical
Saturated PHP-FPM: tell too few workers from blocking code
PHP-FPM queue full? Before raising pm.max_children, check if workers sleep on an external API call or a 30-second SQL query.
4 min read · Jun 8, 2026
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Technical
Connection pooling: the cure for spikes that can saturate the database
PgBouncer and app pools cut open connections — but sized wrong, they make apps wait in front of an already choking database.
3 min read · Jun 7, 2026
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Technical
Database replication: availability or faster reads?
Replicating without a clear goal duplicates data — not problems. Failover, read replica, and lag are three different conversations.
3 min read · Jun 5, 2026
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Technical
Reading PostgreSQL EXPLAIN to stop guessing
"The database is slow" is not a diagnosis. EXPLAIN (ANALYZE) shows where PostgreSQL loses time — scan, join, sort — before you buy hardware.
4 min read · Jun 4, 2026
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Technical
Missing MySQL index: spot the query that brings down the site
Site suddenly slow with no recent deploy? Before adding RAM, find the query scanning millions of rows — one EXPLAIN line is often enough.
3 min read · Jun 3, 2026
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Technical
Redis sessions: keep cache from becoming a fragile dependency
Moving PHP sessions to Redis enables horizontal scale — until Redis fails and everyone is logged out at once.
3 min read · Jun 1, 2026
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Technical
Varnish: the cache that forces you to know logged-in users
Varnish speeds everything identical between visitors — and serves the wrong page to those who should not see the cacheable version.
3 min read · May 31, 2026
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Technical
Dynamic page cache: decide what can really be cached
Caching "the homepage" seems simple — until a logged-in banner, cart and A/B test make every visit unique.
3 min read · May 30, 2026
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Technical
Nginx or Apache: choose by request paths, not reputation
Nginx excels as a reverse proxy and for static files; Apache still shines with .htaccess and legacy modules. The right choice is read request by request.
5 min read · May 28, 2026
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Guide
Going live: a checklist that also speaks to non-technical people
Going live is not clicking Deploy. It is aligning DNS, backups, monitoring, and communication — so the business knows what actually changes.
4 min read · May 27, 2026
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Guide
Auditing existing hosting without starting by replacing it
Replacing the host is the most visible answer — not the fastest. A structured audit often shows eighty percent of issues are application or contract related.
4 min read · May 26, 2026
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Guide
European hosting: geographic origin alone is not enough
"Datacenter in France" on a slide says nothing about US backups, offshore support, or Cloud Act omitted from the contract.
4 min read · May 24, 2026
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Guide
Cron jobs: finally make invisible processing observable
Cron jobs fail silently for weeks — until an unpaid invoice or unsynced stock reveals the missing monitoring.
4 min read · May 23, 2026
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Guide
WebSocket: hosting real time without exhausting connections
Every open WebSocket client consumes memory and file descriptors — far beyond a classic HTTP request. Real time requires reverse proxy tuning, timeouts, and dedicated scaling.
4 min read · May 22, 2026
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Guide
Launching a public API: set limits before clients arrive
A public API without rate limiting, quotas, and observability always ends up saturating the database — often because of one "trusted" client with a bad loop.
4 min read · May 20, 2026
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Guide
E-learning: protect courses without slowing every learner
DRM, signed URLs, and heavy authentication protect videos — but can turn every lesson into a wait. Balance comes from architecture, not a magic plugin.
4 min read · May 19, 2026
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Guide
Property portal: indexing, photos, and search change the equation
A property portal with 15,000 listings does not behave like a brochure site. Heavy photos, SQL filters, and mapping require a different hosting tier.
4 min read · May 18, 2026
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Guide
Community forum: plan for attachments before growth
When a forum takes off, it rarely fails on HTML traffic first — it explodes on storage for avatars, images, and PDFs. Planning attachments early avoids an emergency migration.
5 min read · May 16, 2026
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