Skip to content

Latest commit

 

History

History
16 lines (15 loc) · 902 Bytes

File metadata and controls

16 lines (15 loc) · 902 Bytes

Amazon Quantum Ledger Database - QLDB

  • Part of AWS Blockchain part of products
  • It as an immutable append-only ledger-only database
  • It provides a cryptographically verifiable transaction log
  • It is transparent: full history is always accessible
  • It is a serverless product, it provides Ledgers and Tables. We have no servers to manage
  • It is resilient through 3 AZs, replicates data within each of those AZs
  • It can stream data to Amazon Kinesis, it can stream any changes to data into Kinesis in real-time
  • It is a document database model, storing JSON documents (key-value pairs with a nested structure)
  • Provides ACID transactions
  • Use cases for QLDB:
    • Anything related to finance: account balances and transactions
    • Medical application: full history of data changes matters
    • Logistics: track movement of objects
    • Legal: track the usage and change of data (custody)