DatabasesInfoQ
Databases

AWS recently introduced Amazon Cognito multi-region replication, which automatically replicates user identities and user pool configurations from a primary region to a secondary one. This enables applications to continue authenticating…

Parallel queries in PostgreSQL need shared memory sized at runtime, not startup.

The Evolution of Cassandra Data Movement at Netflix
A skewed partition key can route 80% of your writes to one partition. Learn how to diagnose PostgreSQL partition hot spots and fix them at the schema level.