Azure Cosmos DB for Apache Cassandra vs Cloudera Operational Database

Azure Cosmos DB for Apache Cassandra9.0Visit Cloudera Operational Database8.6Visit

Higher score Azure Cosmos DB for Apache Cassandra #3 in Wide-Column Databases 9.0/10 Free plan · 30-day trial Free planFree trial✓ 3 of 3 features Visit site

vs

Cloudera Operational Database #7 in Wide-Column Databases 8.6/10 Paid ✓ 3 of 3 features Visit Cloudera

• Azure Cosmos DB for Apache Cassandra fits best

  Cassandra workloads needing managed global distribution

• Cloudera Operational Database fits best

  Enterprise HBase with SQL and governance

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Side by side

Feature	Azure Cosmos DB for Apache Cassandra 9.0/10 Visit ↗	Cloudera Operational Database 8.6/10 Visit ↗
At a glance
Editor score	9.0	8.6
Ranking	#3 in Wide-Column Databases	#7 in Wide-Column Databases
Best for	Cassandra workloads needing managed global distribution	Enterprise HBase with SQL and governance
Pricing model	Free plan + paid	Paid
Starting price	—	$0.08/unit usage-based
Free plan	✓ (best)	—
Free trial	30 days	—
Deployment	Cloud	Cloud, Self-hosted
Platforms	Web	Web
Support	Community, Docs	Phone, Tickets, Community, Docs · 24/7
Built for	Small business, Mid-market, Enterprise	Mid-market, Enterprise
Features Azure Cosmos DB for Apache Cassandra 3/3 · Cloudera Operational Database 3/3
Multi-region support	✓	✓
Transaction support	✓	✓
Horizontal scaling	✓	✓
Specs
Deployment model	Managed	Both
Query interface	Cql	Multiple
Consistency controls	Configurable	Configurable
Maximum row size	2 MB	Not checked yet
Our review
Pros	CQL v3.11, Cassandra driver, and tool compatibility Multi-region distribution and writes with five consistency levels Managed scaling, backups, partitioning, and automatic indexing	Apache HBase with ANSI SQL through Apache Phoenix Integrated Apache Solr search with distributed transactions Failover, autoscaling, replication, and enterprise governance
Cons	Paid pricing varies by usage and region The free tier applies to one account per Azure subscription The 30-day trial is limited to non-production databases	No free plan for evaluation or smaller workloads Pricing excludes infrastructure, networking, and other cloud costs The feature set may exceed teams needing a narrower database service
Our verdict	Azure Cosmos DB for Apache Cassandra is a fully managed NoSQL database service for running Cassandra workloads in the cloud. It is aimed at teams that need wide-column storage with Cassandra Query Language (CQL) v3.11 compatibility,… Read the review →	Cloudera Operational Database is a managed wide-column NoSQL database built on Apache HBase for real-time, high-throughput applications. It is aimed at enterprise teams running transactional, customer-facing, time-series, and other… Read the review →

Strengths and trade-offs

• Azure Cosmos DB for Apache Cassandra — where it wins

  • CQL v3.11, Cassandra driver, and tool compatibility
  • Multi-region distribution and writes with five consistency levels
  • Managed scaling, backups, partitioning, and automatic indexing

  Where it doesn't

  • Paid pricing varies by usage and region
  • The free tier applies to one account per Azure subscription
  • The 30-day trial is limited to non-production databases

• Cloudera Operational Database — where it wins

  • Apache HBase with ANSI SQL through Apache Phoenix
  • Integrated Apache Solr search with distributed transactions
  • Failover, autoscaling, replication, and enterprise governance

  Where it doesn't

  • No free plan for evaluation or smaller workloads
  • Pricing excludes infrastructure, networking, and other cloud costs
  • The feature set may exceed teams needing a narrower database service

• Azure Cosmos DB for Apache Cassandra9.0/10 · Free plan · 30-day trial

  A managed Cassandra option for globally distributed workloads with CQL compatibility.

  Visit siteFull verdict →
• Cloudera Operational Database8.6/10 · Paid

  A governed HBase service with SQL, search, scaling, and hybrid-cloud deployment.

  Visit ClouderaFull verdict →