Field notes from operating Cassandra in production.
September 11, 2026 · RapidMindLabs
The multi-DC expansion runbook: NetworkTopologyStrategy changes, nodetool rebuild, the auth keyspace everyone forgets, and the exact order that keeps reads correct while the new DC is still empty.
Read moreSeptember 10, 2026 · RapidMindLabs
Cassandra 5 added a vector type, ANN search, and Storage-Attached Indexing. Both are genuinely useful and both are easy to misuse. What changed, how the indexes behave under load, and when to keep your embeddings somewhere else.
Read moreAugust 11, 2026
We make our living on Cassandra, so believe us when we say: plenty of systems shouldn't use it. The workload shapes that fight the architecture, and what to reach for instead.
Read moreJuly 21, 2026
Nobody gets promoted for running repairs on schedule — but most Cassandra incidents trace back to hygiene that quietly stopped. What to run, how often, and the metrics that prove it's working.
Read moreJune 16, 2026
Cassandra 5 is worth the move — UCS, vector types, better indexes — but major upgrades reward ceremony. The pre-flight checks, rolling procedure, and rollback criteria we use on real clusters.
Read more