Query-First Data Modeling
We design partition keys, clustering columns, and denormalized tables around each query your application runs, keeping partitions bounded and avoiding the tombstone buildup that slows reads.
Database Technologies
Keep Cassandra Fast as Data and Traffic Grow
Apache Cassandra rewards good design and punishes shortcuts. Our consultants design data models, build and tune clusters, and support Cassandra in production for teams running write-heavy, always-on workloads on premises or in managed cloud services.
What We Deliver
Most Cassandra problems trace back to a data model built like a relational schema, or to compaction and repair left on defaults. We model tables around your queries, set consistency levels deliberately, and tune the cluster against real traffic before it goes live.
We design partition keys, clustering columns, and denormalized tables around each query your application runs, keeping partitions bounded and avoiding the tombstone buildup that slows reads.
We set replication factors with NetworkTopologyStrategy and choose consistency levels such as LOCAL_QUORUM per operation, balancing latency against correctness across your data centers.
We match compaction strategy to each table, TimeWindow for time series and Leveled for read-heavy data, and schedule repairs with Cassandra Reaper so replicas stay consistent.
Amazon Keyspaces, Azure Managed Instance for Apache Cassandra, and DataStax Astra DB remove cluster operations. We assess their compatibility and cost against running Cassandra yourself.
Our Approach
We list the reads and writes your application performs, estimate partition sizes and growth, and design tables that answer each query from a single partition.
We plan nodes, racks, data centers, and replication, choose hardware or instance types, and set JVM and compaction settings suited to your workload.
We drive production-like traffic with cassandra-stress or NoSQLBench, watch latency percentiles and compaction backlog, and adjust until results meet your targets.
We set up monitoring, repair schedules, backups, and runbooks for node replacement and scaling, then support the cluster or train your team to run it.
Cassandra fits write-heavy, high-availability workloads with predictable query patterns, such as time series, event logs, and user activity. It is a poor fit for ad hoc queries and joins, and we will tell you if another database suits you better.
Yes. Slow reads usually come from oversized partitions, tombstones, or compaction falling behind. We find the cause in cluster metrics and fix the data model or settings behind it.
Managed services cut operational work but differ in feature support, pricing, and tuning control. We compare them against your current cluster before you commit.
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Next Step
Tell us where your data, applications, or workflows are slowing your team down. We'll discuss your priorities and identify a practical starting point.