FoundationDB

• FoundationDB
  • Apache-2.0, C++
  • by Apple
    • Cassandra -> FDB
  • 分布式、事务、KV
  • 作为 DynamoDB, Cassandra, HBase 的替代
  • 可以作为别的服务的存储底层: 上层实现 SQL、Document
• 参考
  • https://apple.github.io/foundationdb/
    • https://apple.github.io/foundationdb/architecture.html
  • FoundationDB/awesome-foundationdb
  • FoundationDB/fdb-kubernetes-operator
  • FoundationDB/fdb-document-layer
    • MongoDB® wire protocol
  • FoundationDB: A Distributed Unbundled Transactional Key Value Store
    • HN
  • CouchDB 4 底层可能会迁移到 FoundationDB
  • FoundationDB Record Layer: A Multi-Tenant Structured Datastore
  • QuiCK: A Queuing System in CloudKit
  • How FoundationDB works and why it works
  • https://news.ycombinator.com/item?id=16877395

caution

• 事务不能超过 10M 影响数据
  • 写的数据、不包含读
  • 推荐先更新数据，最好再事务更新指针
• 事务不能超过 5s
• 目前部署运维并不容易

tip

• conflict detection is lock-free - Sequencer is not lock-free

• 更严格的限制 换取更 简单的设计实现