Uncovering the Perfect Scalable Database for Hyperledger Fabric's Evolution

Hyperledger Fabric, a renowned permissioned blockchain platform, offers flexibility and customization through its simulate-ordervalidate paradigm and pluggable architecture. The world state database, a critical component in Hyperledger Fabric, captures the current state of blockchain applications. This study explores alternative state database implementations, including RocksDB, Boltdb, and BadgerDB, and evaluates their performance using diverse workloads, with a focus on memory and CPU utilization. Experimental results indicate that the evaluated alternatives surpass the default LevelDB and CouchDB provided by Hyperledger Fabric. Specifically, BadgerDB exhibits the highest throughput and lowest latency and bbolt demonstrates superior memory utilization efficiency. Moreover, we provide guidance on integrating new state databases into Hyperledger Fabric and present valuable insights for blockchain researchers and practitioners. By showcasing significant performance improvements, our research contributes to the advancement of enterprise blockchain technology and fosters scalability in permissioned blockchain systems.