Real PostgreSQL sandbox
Every scenario runs an actual PostgreSQL instance in a container — not a multiple-choice quiz or a video.
RILLENCE PostgreSQL incident simulator
Train for real PostgreSQL incidents before they happen in production
Practice realistic PostgreSQL failures with deterministic feedback and zero production risk.
Built for the engineers who get paged when Postgres is on fire
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What it is
One product: realistic PostgreSQL incident training
Playground is a REPL-first PostgreSQL incident simulator. Boot a real database in a sandbox, break it with a realistic failure, investigate, and get deterministic feedback — with zero production risk.
Real incident scenarios
Missing indexes, stale statistics, lock contention, replication lag, disk pressure and WAL growth — injected into a live system.
AI tutor + deterministic scoring
Get progressive hints while you investigate, a scorecard for your fix and a postmortem explaining the root cause.
Built for individuals and teams
Practice alone, onboard new engineers, or run repeatable internal PostgreSQL incident drills.
How practice works
From paged to postmortem in four steps
Enter the Playground
Run pgpg to open the interactive REPL.
Start an incident
Pick one of 112 PostgreSQL scenarios across 12 production tracks.
Investigate
Connect with psql, an IDE, DataGrip, DBeaver, or any PostgreSQL client and dig into the sandbox.
Submit and score
Get deterministic Detect / Fix / Trap scoring and a postmortem.
Incident catalog
112 PostgreSQL incidents across 12 production tracks
Playground covers the PostgreSQL failure modes engineers actually meet in production: slow queries, locks, connection storms, replication lag, backup failures, unsafe failovers, migrations, security mistakes, and compound incidents.
Newsletter
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New incident tracks, product updates and hard-won PostgreSQL tips — delivered to your inbox now and then.