UnisonDB
B+Tree DB with sub-second replication to 100+ nodes
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HN · launched Nov 15, 2025 · 15 upvotes (top 39%) · 0 views
Niche: database management systems and engines · 162 launches, 5 in the last 7 days ▼ -17% · Explore this niche →
Category and tags
- Horizontal
- Data infrastructure
- Developer
- Not AI
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 162 launches in database management systems and engines →
Could you build this?
No Building a custom B+Tree database engine with sub-second distributed consensus and replication across 100+ nodes requires expert-level distributed systems and low-level storage engineering.
What it would actually take: The architecture involves a low-level systems language (C++, Rust, or Go) implementing an on-disk B+Tree storage manager with write-ahead logging (WAL), buffer pool management, and memory-mapped I/O. The primary challenge is the distributed consensus or replication protocol (such as Raft, Paxos, or tree-based multicast gossip) engineered to achieve sub-second synchronization across 100+ heterogeneous nodes without deadlocks or split-brain. This requires deep systems programming, storage engine design, and formal distributed systems verification.
Discussion
1 comment analyzed.
Competitors mentioned: BadgerDB, BoltDB, Kafka, CDC solutions
Competitors
Other products that read as similar to this one : 456 launches clear the similarity bar, closest 8 shown.
Attention rank: #176 of 457 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 15 days after the earliest competitor.
- KV and wide-column database with CDN-scale replication · hn · 2025-12-14 · 6 upvotes · similarity 0.58
- UnisonDB · hn · 2025-11-01 · 17 upvotes · similarity 0.55
- pgsync · github · 2026-10-13 · 90 upvotes · similarity 0.55
- pgwire-replication · hn · 2026-01-11 · 46 upvotes · similarity 0.50
- justPostgres · github · 2026-09-09 · 46 upvotes · similarity 0.49
- Instant GraphRAG over any Postgres database · hn · 2026-07-07 · 5 upvotes · similarity 0.49
- streamgres · github · 2026-10-07 · 97 upvotes · similarity 0.49
- Knitting · hn · 2026-10-13 · 12 upvotes · similarity 0.48
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