What changed in Apache Cassandra 6.0: Accord transactions, TCM and CMS, cursor compaction, Zstd dictionaries, SAI and JDK 21, and what to test first.

Turning TLS on is the easy part. Eight checks that catch the certificate failures that cause incidents: expiry, SAN drift, CA expiry and failed rotations.

Racks and data centres decide where every copy of your Cassandra data lives. A practical guide to getting the topology right before the first node starts.

Migrate from DataStax Astra DB to self‑managed Apache Cassandra with zero‑downtime

A blueprint for multi-DC Apache Cassandra across sovereign European infrastructure, using a WireGuard mesh for data autonomy and vendor-neutral security.

Why Cassandra 5.x should run on Java 17 with the Shenandoah garbage collector, and the performance, stability and operational gains you can expect.

A three-step strategy for upgrading Apache Cassandra from 4.x to 5.x without downtime, keeping data consistent while adopting the new 5.x features.

Trie memtables, Storage Attached Indexes and Unified Compaction Strategy: why Apache Cassandra 5.0 cuts costs and adds capability worth upgrading for.

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.

How Digitalis builds robust, compliant data platforms for enterprises, turning real-time and sensitive data into secure, scalable insight.

I have been asked about tombstones in cassandra, often from users who suddenly are experiencing a slow cluster, some nasty timeouts, a…