Transactional schema-less embedded database used by JetBrains YouTrack and JetBrains Hub.
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Updated
Jul 9, 2026 - Java
Transactional schema-less embedded database used by JetBrains YouTrack and JetBrains Hub.
Nornicdb is a distributed low-latency, Graph+Vector, Temporal MVCC with all sub-ms HNSW search, graph traversal, and writes. Using Neo4j Bolt/Cypher and qdrant's gRPC means you can switch with no changes while adding intelligent features like schemas, managed embeddings, reranking+llm, GPU accel, Auto-TLP, Policy-based Memory Decay, and MCP server.
A microsecond-latency ACID database engine with a native Entity-Component-System data model, built for real-time systems.
Standalone, deterministic MVCC engine for building transactional key-value databases in Rust — timestamp-ordered versions, two-phase intent transactions, guarded writes, and incremental GC. The open-source core of the Nexir database.
Tesseract: Efficient Online Schema Evolution for Snapshot Databases (VLDB 2023)
Percolator snapshot-isolated distributed transaction protocol with primary-lock two-phase commit
Repository with an implementation of MVCC and serialized snapshot isolation in an in-memory KV store.
Multi-Version Concurrency Control (MVCC) engine guaranteeing non-blocking repeatable reads, snapshot isolation, and version chain garbage collection.
Multi-Version Concurrency Control (MVCC) engine guaranteeing non-blocking repeatable reads, snapshot isolation, and version chain garbage collection.
Production-grade genpark-mvcc-snapshot-isolation-engine-skill skill for AI agents
Multi-Version Concurrency Control (MVCC) engine with tuple versioning and snapshot isolation.
Production-grade genpark-percolator-distributed-snapshot-transactions-skill skill for AI agents
Percolator snapshot-isolated distributed transaction protocol with primary-lock two-phase commit
Production-grade genpark-percolator-distributed-snapshot-transactions-skill skill for AI agents
Multi-Version Concurrency Control (MVCC) engine with tuple versioning and snapshot isolation.
Production-grade genpark-mvcc-snapshot-isolation-engine-skill skill for AI agents
Class assignments for the course Advanced Database Systems (CS60113) [IIT Kgp]
MVCC transaction primitive for Rust databases - snapshot isolation, SSI, deadlock detection.
An embeddable MVCC key-value store for time-travel queries, offering snapshot isolation, lock-free single-writer/multi-reader concurrency and incremental compaction.
a toy database support snapshot isolation
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