Cassandra & DataStax
Keep your most demanding data systems fast, reliable, and always on.
RhinoSource is DataStax's trusted expert for Apache Cassandra and DataStax Enterprise — the firm DataStax brings in when a cluster has to perform under real pressure. Over 40 engagements, we've reviewed, tuned and migrated some of the largest Cassandra deployments in production anywhere.
What we do
Cluster health checks & performance tuning
find and fix latency, compaction, tombstone and GC problems before they hit your SLAs
Architecture & data-model reviews
designs that scale linearly and read fast at web scale
Go-live readiness reviews
validate a new cluster before it carries production load
Zero-downtime migrations
hardware, data-center, cloud, and to DataStax Astra or Amazon Keyspaces
Security hardening
SSL, Transparent Data Encryption, backup & point-in-time recovery
Capacity planning & load testing
NoSQLBench-driven benchmarking to size and prove your cluster
Operations enablement
runbooks, OpsCenter, monitoring & alerting, and hands-on team coaching
The full DSE stack
DSE Search (Solr), Spark analytics, and DSE Graph
Trusted by
And McDonald's, NICE Actimize / PSCU (Velera) — plus many more, across telecom, retail, financial services, government and industrial IoT.
Why RhinoSource
Deep Cassandra internals expertise, not surface-level advice. Our vNode-configuration study was mirrored in DataStax's own default guidance; our zero-downtime migration methods have moved petabyte-scale workloads without an outage. When the stakes are highest — strict SLAs, always-on systems, web-scale data — this is the work we're known for.
Related case studies
Engagements in this practice — the problems, and what we did about them.

U.S. Postal Service
USPS Informed Visibility DataStax Cassandra Support
DataStax brought RhinoSource in to analyze the large-scale DataStax Enterprise Cassandra and Solr clusters behind Informed Visibility Mail Tracking & Reporting, confirming they could carry significantly increased peak holiday season loads, and to plan zero-downtime upgrades and migration.

Western Union
Western Union DataStax Enterprise Cloud Architecture Design
DataStax engaged RhinoSource to review Western Union's application data models and access paths, and to author a comprehensive set of DataStax Reference Architecture blueprints for AWS — from single-region Cassandra to multi-region Spark, Solr and DSE Graph deployments.

[24]7.ai
[24]7.ai Real-Time Customer Messaging DataStax Architecture Review
DataStax brought RhinoSource into [24]7.ai to review the DataStax Enterprise Cassandra platform behind its real-time messaging applications — architecture, data model, access patterns and operations — and to plan a zero-downtime upgrade.
From the blog
- Five Signals Your Cassandra Cluster Is in Trouble
Cassandra rarely fails loudly — it degrades. Here are the five warning signs that show up again and again in production cluster health checks, and what to look at first.




















