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.

GE Aerospace
GE Aerospace DataStax Enterprise Upgrade, Migration and Hardening
DataStax brought RhinoSource into GE Aerospace to author the production DSE upgrade and data-centre migration runbooks behind its Cassandra and Solr estate, build a utility to scrub diagnostic data before it left the customer's hands, resolve OpsCenter backup and audit failures, and assist with security hardening.

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.
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.




















