Comdb2
Relational databases
Database software
- Features
- Ease of use
- Ease of management
- Quality of support
- Affordability
- Market presence
Take the quiz to check if Comdb2 and its alternatives fit your requirements.
Completely free
Free Trial unavailable
Free version
Small
Medium
Large
- Banking and insurance
- Information technology and software
- Transportation and logistics
What is Comdb2
Comdb2 is an open-source distributed relational database that provides SQL access on top of a clustered storage and replication architecture. It targets teams building transactional applications that need high availability and horizontal scale across multiple nodes. The system emphasizes online schema changes, replication, and operational tooling for running a database cluster rather than a single-node deployment. It is typically deployed and operated by engineering teams that can manage database infrastructure directly.
Distributed, replicated architecture
Comdb2 is designed to run as a cluster with replication, supporting high availability and failover patterns. This can reduce reliance on external clustering layers for basic redundancy. It fits use cases where a relational model is needed but the deployment must span multiple nodes.
SQL interface for OLTP
The product exposes a SQL interface suitable for transactional workloads and application integration. This lowers the barrier for teams already using relational data models and SQL-based tooling. It can be a practical option when a managed service is not required and the team prefers self-hosted control.
Open-source and self-hostable
Comdb2 is available as open source, enabling source review, customization, and on-premises deployment. This can help organizations with strict data residency or internal platform requirements. It also avoids vendor lock-in associated with proprietary database licensing.
Smaller ecosystem and tooling
Compared with widely adopted commercial and cloud-managed relational databases, Comdb2 has a smaller third-party ecosystem. This can mean fewer off-the-shelf integrations, admin GUIs, and managed operational add-ons. Teams may need to rely more on internal expertise and custom automation.
Higher operational responsibility
Running Comdb2 typically requires managing cluster configuration, upgrades, monitoring, backup/restore, and incident response in-house. Organizations that prefer fully managed database services may find this operationally heavier. The total cost of ownership can increase if the team lacks database SRE capacity.
Less common enterprise support
Commercial support options and certified compatibility programs are generally less standardized than for major enterprise database vendors. This can be a concern for regulated environments that require formal SLAs, vendor attestations, or broad partner support. Procurement and risk teams may require additional due diligence.
Plan & Pricing
Pricing model: Open-source / Free Details: Comdb2 is distributed as open-source software via Bloomberg's official GitHub repository and documentation site. The vendor's official pages do not list any paid/subscription tiers, commercial editions, or pricing. It is available to download and run without charge under the project license.
Seller details
Comdb2 (open-source project; originally developed at Bloomberg)
Open Source
https://bloomberg.github.io/comdb2/
