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.
Hands-on PostgreSQL incidents in real sandboxes — slow queries, locks, vacuum, replication and more — with deterministic scoring and zero production risk.
Built for the engineers who get paged when production is on fire
The same hands-on scenario format across every kind of PostgreSQL failure — ride postgres. One catalog, organised into production tracks.
Missing indexes, bad plans, stale statistics, sort spills and N+1 patterns.
ride postgres
Lock contention, deadlocks and idle-in-transaction pile-ups.
ride postgres
MVCC bloat, autovacuum tuning and transaction-id wraparound.
ride postgres
Replication lag, WAL and archiving, failover and recovery.
ride postgres
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.
Every scenario boots an actual PostgreSQL in a container — the real planner, real locks, real WAL — not a multiple-choice quiz or a video.
Missing indexes, lock contention, replication lag, vacuum bloat, connection-pool exhaustion, sort spills and more — injected into a live PostgreSQL.
Get progressive hints while you investigate, a scorecard for your fix and a postmortem explaining the root cause.
Practice alone, onboard new engineers, or run repeatable team drills across your whole stack.
Run ride postgres to open the interactive REPL.
Pick from a deep catalog of realistic scenarios across production tracks.
Connect with your usual client — psql, EXPLAIN, pg_stat_statements — or an IDE, and dig into the sandbox.
Get deterministic Detect / Fix / Trap scoring and a postmortem.
One deep catalog: slow queries, missing indexes, locks and deadlocks, connection storms, vacuum and bloat, replication lag, backup and PITR, unsafe failovers, migrations, and compound incidents.
New tracks, product updates and hard-won PostgreSQL tips — delivered to your inbox now and then.