Project Summary
Comdb2 is a clustered RDBMS built on Optimistic Concurrency Control techniques. It provides multiple isolation levels, including Snapshot and Serializable Isolation. Read/Write transactions run on any node, with the client library transparently negotiating connections to lowest cost (latency) node which is available. The client library provides transparent reconnect.
Work on Comdb2 was started at Bloomberg LP in 2004 and it has been under heavy development since. More information about the architecture of the project can be found in our VLDB 2016 paper and for more information on usage please look in the Docs.
In a Nutshell, comdb2...
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has a well established, mature codebase
maintained by a large development team
with increasing Y-O-Y commits -
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took an estimated 226 years of effort (COCOMO model)
starting with its first commit in May, 2017
ending with its most recent commit 4 days ago
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Project Security
Vulnerabilities per Version ( last 10 releases )
There are no reported vulnerabilities
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30 Day SummaryMay 13 2026 — Jun 12 2026
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12 Month SummaryJun 12 2025 — Jun 12 2026
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