CockroachDB vs OpenSearch
- ✦ Distributed SQL
- ✦ PostgreSQL Wire Protocol
- ✦ Multi-Region Replication
- ✦ Full-text search
- ✦ k-NN vector search
- ✦ SQL query support
Real-World Scenarios: When to Choose Which
The question that matters: “In what situation will I regret choosing A over B after 3 months?”
CockroachDB's geo-partitioning pins rows to specific cloud regions by key prefix, ensuring GDPR-regulated customer data never leaves EU nodes without sacrificing SQL query capability.
CockroachDB's multi-zone deployment survives the loss of an entire availability zone automatically, with zero data loss and sub-30-second recovery versus minutes of manual failover for traditional primary/replica setups.
CockroachDB's online schema changes apply column additions and index builds while the database serves traffic, avoiding the maintenance windows that single-node SQL databases require for schema changes.
Migrate from Elasticsearch to OpenSearch with API-compatible clients and keep the same application code
Route CloudWatch logs to OpenSearch Service via Kinesis for centralized log search without leaving AWS
Store document embeddings and run hybrid text+vector search with the k-NN plugin to improve retrieval accuracy
Correlate AWS CloudTrail and VPC flow logs in OpenSearch to detect anomalous access patterns in near-real-time
Pricing Intelligence
CockroachDB Plans
Free tier available
- • 10 GiB storage
- • Shared cluster
- • PostgreSQL compatible
- • $0.20/hr
- • Dedicated cluster
- • Multi-region support
- • Custom deployment
- • SLA
- • HIPAA/FedRAMP
OpenSearch Plans
Free tier available
- • Apache 2.0 license
- • Self-hosted
- • Full features
- • From $0.096/hr per instance
- • Managed by AWS
- • Pay-as-you-go
Feature Matrix
9 differences found across 18 standardized features
- •Distributed SQL
- •PostgreSQL Wire Protocol
- •Multi-Region Replication
- •Serializable Isolation
- •Automatic Sharding
- •Geo-Partitioning
- •Follower Reads
- •Online Schema Changes
- •ACID Transactions
- •Backup to Cloud Storage
- •Change Data Capture
- •LDAP/SAML Auth
- •Row-Level TTL
- •Import/Export
- •Prometheus Monitoring
- •Kubernetes Operator
- •Full-text search
- •k-NN vector search
- •SQL query support
- •Distributed sharding
- •ML inference nodes
- •Security plugin (built-in)
- •Observability dashboards
- •Anomaly detection
- •Index rollups
- •REST API
- •Cross-cluster replication
- •Snapshot to S3
- •ISM (Index State Management)
- •Alerting plugin
Pros & Cons Face-Off
Evaluative strengths and weaknesses: not feature lists
- +PostgreSQL compatibility minimizes migration effort
- +Survives node and zone failures automatically
- +Global multi-region with low-latency reads via follower reads
- +Free tier for development and small workloads
- −More expensive than single-node PostgreSQL for simple use cases
- −Distributed transaction overhead vs single-node performance
- +Apache 2.0 license - no SSPL restrictions
- +API-compatible with Elasticsearch for easy migration
- +Built-in security plugin at no extra cost vs Elastic
- −Feature development lags Elasticsearch in some areas
- −AWS-managed version has less flexibility than self-managed Elastic
At a Glance
Frequently Asked Questions
Related Comparisons
Sources
- 1.CockroachDB Official Pricing–Vendor pricing page
- 2.OpenSearch Official Pricing–Vendor pricing page
- 3.CockroachDB Official Website–Official product website
- 4.OpenSearch Official Website–Official product website