Relational database

CockroachDB

Distributed SQL that survives node, zone and region failures.

A PostgreSQL-compatible distributed SQL database that replicates data with Raft across nodes, regions and clouds, with serializable transactions, automatic rebalancing and multi-region data placement.

Data model: Relational
Vendor: Cockroach Labs
License: Proprietary (free for individuals and small businesses)
Articles: 1

CockroachDBIntermediate

Why does CockroachDB keep telling me to "restart transaction"?

SQLSTATE 40001 is how serializable isolation stays correct in a distributed database. Add client-side retries, cut contention, and know when READ COMMITTED fits.

#concurrency#transactions#troubleshooting

Tanishk · 8 min

Oct 23, 2026