RILLENCE Incident simulators for your data stack

Train for real production incidents before they happen

Practice realistic database and infra failures in sandboxes with deterministic feedback and zero production risk. PostgreSQL, MySQL, MongoDB and Redis — all available today.

Start now → Explore PostgreSQL

One launcher • Sandboxed environments • Deterministic scoring

Built for the engineers who get paged when production is on fire

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Engines

One launcher, an engine for every tool you run in production

The same incident-training format across your stack — rillence <tool>. PostgreSQL, MySQL, MongoDB and Redis are all available today, each with its own incident catalog.

PostgreSQL

Slow queries, locks, replication, WAL, storage, vacuum, HA and migrations.

rillence postgres

MySQL

Indexing, connections & threads, ProxySQL, replication and binlog.

rillence mysql

MongoDB

Compound indexes, aggregation pipelines and connection pools.

rillence mongodb

Redis

TTL hygiene, eviction storms, big keys and commands that block the event loop.

rillence redis

What it is

Realistic incident training, not videos or quizzes

Rillence is a REPL-first incident simulator. Boot a real system in a sandbox, break it with a realistic failure, investigate with your own tools, and get deterministic feedback — with zero production risk.

Real sandboxes, real engines

Every scenario boots an actual system in a container — PostgreSQL today, Redis, MySQL and MongoDB next — not a multiple-choice quiz or a video.

Real incident scenarios

Missing indexes, lock contention, replication lag, eviction storms, connection-pool exhaustion, disk pressure and more — 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 incident drills across your whole stack.

How practice works

From paged to postmortem in four steps

Launch the simulator

Run rillence postgres (or another tool) to open the interactive REPL.

Start an incident

Pick from a deep catalog of realistic scenarios across 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

PostgreSQL incidents across production tracks — plus MySQL, MongoDB and Redis

The PostgreSQL catalog is the deepest: slow queries, locks, connection storms, replication lag, backup failures, unsafe failovers, migrations, security mistakes, and compound incidents. MySQL, MongoDB and Redis ship with their own full catalogs too.

Explore incident tracks →

Pricing

Simple pricing for incident practice across your stack

One subscription covers every engine. Higher tiers add team drills, analytics and management — not more incidents.

Individual

For a single engineer practising incident skill solo.

Team

For one team training together — shared drills, scores and readiness.

Enterprise

For larger teams with procurement, training, or deployment requirements.

View pricing →