Cassandra Architecture Basics: Nodes, Partitions, Replication, and Consistency
A practical introduction to Cassandra architecture for DBAs: clusters, nodes, partition keys, replication factor, consistency levels, and operational tradeoffs.
Wide-column design, partitioning, CQL, compaction strategies.
22 tutorials
Extend a cluster into a second datacenter, populate its replicas, and verify it before directing reads there.
Turn a Cassandra upgrade into a sequence of observable checks and controlled changes.
Create a small Cassandra cluster and prove that replication works with a real read/write example.
Move application traffic and replica responsibility away from a datacenter before retiring its nodes.
Build an evidence-based go/no-go check for datacenter retirement, including clients, replicas, and recovery.
Decommission one healthy node while preserving sufficient replicas and service capacity.
Migrate a related group of Cassandra tables with a documented consistency boundary.
Learn a complete export, import, and verification cycle using DSBulk.
Understand how upserts, extra target rows, and replay affect a Cassandra table reload.
Design a bulk load around application health and recoverable batches rather than maximum concurrency.
Move a Cassandra dataset across network boundaries and validate both connectivity and data.
Rehearse an offline table migration with a clear point at which the new cluster becomes authoritative.
Refresh a staging table without confusing stale target rows with the current export.
Connect table migration to service configuration, functional tests, and a controlled cutover.
Turn a Cassandra upgrade into a sequence of observable checks and controlled changes.
Turn a Cassandra upgrade into a sequence of observable checks and controlled changes.
Turn a Cassandra upgrade into a sequence of observable checks and controlled changes.
Turn a Cassandra upgrade into a sequence of observable checks and controlled changes.
Move a small Oracle query result into Cassandra while making the target partition key explicit.
Map a Cassandra dataset into a relational staging table, validate it, and merge only accepted rows.
Map a Cassandra dataset into a relational staging table, validate it, and merge only accepted rows.
Separate a workload from a shared Cassandra cluster using a data copy and staged application cutover.
A practical introduction to Cassandra architecture for DBAs: clusters, nodes, partition keys, replication factor, consistency levels, and operational tradeoffs.
Cassandra data modeling explained simply: why query-first design matters, how partition keys work, and why normalization habits can hurt performance.