Learn how Cassandra Lightweight Transactions use Paxos to provide linearizable compare-and-set on a single partition, with a concrete UPDATE example, latency numbers, common pitfalls, and verification steps you can run on a 3‑node cluster.
Lightweight Transactions in Cassandra provide compare-and-set semantics for a single partition, but they carry coordination overhead. Learn when to use them, what boundaries they enforce, and how to measure their impact.
A practical guide to using IF NOT EXISTS and conditional updates in Apache Cassandra to prevent race conditions, with version caveats, serial consistency configuration, and contention diagnostics.
An architecture note on when and how to use Cassandra lightweight transactions for linearizable single-row writes, covering requirements, minimal design, trust boundaries, operational checks, failure modes, and redesign triggers.
Learn how Cassandra Lightweight Transactions provide compare‑and‑set semantics, see a concrete cqlsh example, and understand when their extra latency is worth the guarantee.
A concise guide to when and how to use Cassandra Lightweight Transactions, covering the minimal CQL pattern, trust assumptions, operational metrics, failure modes, and signs that the design should be revisited.
Cassandra Lightweight Transactions give linearizable compare‑and‑set semantics for unique writes like username reservation, at the cost of higher latency; see how to use, verify, and limit them.