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Instaclustr Blog
Category: Technical

What’s new in Cassandra® 6? A roundup of features for users and operators

Apache Cassandra 6 is shaping up to be significant release as some of its biggest changes affect the core behavior of the&hellip...

When (and when not) to use Apache Kafka® Diskless Topics

I recently wrote a Visual Guide to Apache Kafka Diskless Topics, which introduces the main ideas behind Kafka Diskless Topics and ...

Say goodbye to ZooKeeper™: A production-ready path to KRaft designed for service ...

Over the last few months, NetApp has executed over 700 in‑place ZooKeeper‑to‑KRaft migrations on the NetApp Instaclustr Platform, ...

Kafka Sink Connectors explained: Bridging your data pipeline

A "sink connector" sounds simple—until you realize different systems use the term from different perspectives. In Apache Kafka ...

Why regular Kafka® client upgrades matter: Lessons from the April 2026 CVEs

Keeping Kafka brokers and, just as importantly, Kafka clients up to date is one of the simplest and most effective ways to&hellip...

Understanding OpenSearch® vector field type—Part 2: sparse_vector

Overview: Beyond semantic search In part 1, we explored how knn_vector field type enables semantic search by retrieving results ...

Apache Cassandra® 6 Accord transactions: What you need to know

There have always been architectural trade-offs when considering a distributed database like Apache Cassandra versus a relational ...

Apache Kafka® 4.1.0: Advancing Queues and rack-aware rebalancing returns

What is new in the latest Kafka release? In my previous blog, I introduced the new Streams Rebalance Protocol. Now, I'm diving&...

What’s new in Kafka® 4.1.0? Introducing the new Streams Rebalance Protocol

It’s been a while since I’ve looked at new Apache Kafka versions and features (Kafka 4.0.0 back in July/August 2025, just after&...