ClickHouse is the fastest practical way to query high-volume event data, and it is not a general-purpose database.

You can't recover a lost Cassandra superuser password, but you can reset it. Why versions differ on authentication and a step-by-step recovery guide.

How Cassandra's phi accrual failure detector works, what phi_convict_threshold controls, and when to tune it for a more stable cluster.

A DevOps look at CockroachDB as a PostgreSQL alternative for a multi-region AWS project: clustering, users, backups and missing features.