Serverless nature of
summary
Yandex VDB implements a NewSQL, horizontally scalable database built from tablets stored on a distributed storage layer (no local disk) and an actor framework in C++ that runs query fragments on any compute node. It provides distributed ACID transactions out of the box, tenant isolation by packing many databases into one cluster, and serverless pricing via request units (reads normalized to 4KB, writes to 1KB, cost = max IO vs CPU). Tablet splits default at 2GB, split latency ~400 ms, and a distributed quota limiter prevents noisy neighbors.
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chapters (12)
- 0:00Introduction
- 2:16Service-oriented computing
- 5:30SO database problems
- 8:20YDB architecture from scratch
- 15:43YDB components and interaction
- 25:42YDB multi-tenant architecture
- 30:47Resource distribution in YDB
- 35:47Actor model and load balancing
- 41:50Table sharding strategies
- 47:59Request pricing and quotas
- 54:41DynamoDB-compatible API
- 57:30YDB as a service summary
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