Instaclustr Blog Archive
2026 | Page 4
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- ClickHouse
- Dev Rel
Apache Iceberg explained: A better table format for modern data lakes
Data lakes had a reputation problem. The promise was compelling: dump all your data into cheap object storage—S3, GCS, Azure Blob—and query it whenever you need. The reality was a mess of stale partitions, schema drift, and silent data corruption caused by unsafe concurrent writes. Engineers knew the risks and worked around them rather than...
Learn MoreWalt RibeiroJune 02, 2026 -
- Apache Kafka
- Dev Rel
How to handle bad messages safely in Kafka Streams with KIP-1034 Dead Letter Queues
What should you do with messages that can’t be delivered? If you have spent time developing Kafka Streams applications in Java, you’ve probably felt the gap between what Kafka Connect and Kafka Streams offer when something goes wrong on the wire. Connect has a familiar pattern: poison messages land in a dead letter queue (DLQ)...
Learn MorePaul BrebnerJune 01, 2026 -
- Apache Cassandra
- Dev Rel
- Feature Releases
- News
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 database: How metadata is coordinated How Cassandra is moving toward broader transaction support via Accord protocol How repair is scheduled, and How operators inspect and manage the system. Let’s focus on a few...
Learn MoreMariah McLaughlinMay 14, 2026 -
- Apache Kafka
- Dev Rel
- News
- Open Source
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 links to the relevant Kafka KIPs. At present, the only accepted KIP is the high-level KIP-1150, and the only available implementation is Aiven’s “Inkless” fork. So, what are some potential Kafka Diskless Topic use...
Learn MorePaul BrebnerMay 14, 2026 -
- Apache Kafka
- Apache ZooKeeper
Say goodbye to ZooKeeper™: A production-ready path to KRaft designed for service continuity at no added cost
Over the last few months, NetApp has executed over 700 in‑place ZooKeeper‑to‑KRaft migrations on the NetApp Instaclustr Platform, with more being completed every day. These upgrades have been across production Kafka clusters ranging from small development environments to larger deployments. The migrations were completed with no observed customer-visible application downtime, designed to minimize without manual...
Learn MorePhil YangMay 11, 2026 -
- News
Tag Management made easy on the NetApp Instaclustr Platform
Introduction In today’s cloud-native landscape, organizations routinely manage dozens or even hundreds of clusters distributed across multiple cloud providers. This scale brings unprecedented flexibility and resilience, but it also introduces significant operational complexity. Without proper organization and metadata management, such as consistently applying tags and labels, even straightforward tasks—such as identifying cluster ownership, isolating environments,...
Learn MoreJeremy GiddingsMay 07, 2026 -
- Apache Kafka
- ClickHouse
- Dev Rel
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 Connect, a sink connector means data flowing out of Kafka into another system. In ClickHouse, the database itself is often called the sink—the place data flows into. The term is correct in both cases. The confusion comes...
Learn MoreWalt RibeiroMay 06, 2026 -
- 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 improve reliability, security, and correctness over time. New Kafka releases routinely include performance improvements, bug fixes, and safeguards that are difficult to retrofit through configuration alone. The Apache Kafka project announced several CVEs...
Learn MoreVarun GhaiMay 04, 2026