Real sandbox, real Postgres
Every scenario boots an actual PostgreSQL in a container — the real planner, real locks, real WAL — not a multiple-choice quiz or a video.
RILLENCE Production resilience, practiced
Train for real production failures before they happen
Hands-on scenarios for the systems you run in production — real sandboxes, deterministic scoring, zero production risk. PostgreSQL, MySQL, MongoDB and Redis simulators available today.
Built for the engineers who get paged when production is on fire
BackendSREDBADevOpsPlatformOn-call
Scenarios
One launcher, a simulator for every part of your stack
The same hands-on scenario format across your stack — ride <tool>. PostgreSQL, MySQL, MongoDB and Redis are all available today, each with its own scenario catalog.
Slow queries & indexing
Missing indexes, bad plans, stale statistics, sort spills and N+1 patterns.
ride postgres
Locks & concurrency
Lock contention, deadlocks and idle-in-transaction pile-ups.
ride postgres
Storage & maintenance
MVCC bloat, autovacuum tuning and transaction-id wraparound.
ride postgres
Replication & HA
Replication lag, WAL and archiving, failover and recovery.
ride postgres
What it is
Realistic resilience training, not videos or quizzes
Rillence is a resilience 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-world scenarios
Missing indexes, lock contention, replication lag, vacuum bloat, connection-pool exhaustion, sort spills and more — injected into a live PostgreSQL.
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 team drills across your whole stack.
How practice works
From paged to postmortem in four steps
Launch a simulator
Run ride postgres (or another tool) to open the interactive REPL.
Start a scenario
Pick from a deep catalog of realistic scenarios across production tracks.
Investigate
Connect with your usual client — psql, mysql, mongosh, redis-cli — or an IDE, and dig into the sandbox.
Submit and score
Get deterministic Detect / Fix / Trap scoring and a postmortem.
Scenario catalog
PostgreSQL scenarios 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.
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New tracks, product updates and hard-won PostgreSQL tips — delivered to your inbox now and then.