Blockchain protocols
Discover key facts and figures about major blockchain protocols that are empowering transformations across industries.
Discover key facts and figures about major blockchain protocols that are empowering transformations across industries.
A blockchain framework implementation and one of the Hyperledger projects hosted by the Linux Foundation.
| Global event | Hyperledger Global Forum |
| Consensus | Raft |
| Public / Private / Permissioned | Private, Permissioned |
| Smart contracts | Yes |
| Smart contract language(s) supported | Go, Node.js, Java |
| Transaction privacy | Yes, via channels |
| Transaction visibility | Businesses can create multiple private channels. Through the DLT application, participants can commit confidential transactions over these channels. |
| Transaction ordering | Transactions are routed by the ordering node that receives the transaction to the current leader of that channel. |
Raft is a crash fault-tolerant (CFT) ordering service. Raft follows a “leader and follower” model, where a leader node is elected (per channel), and its decisions are replicated by the followers. If the leader becomes unavailable, the followers will initiate a leader election, and one of them will be elected the new leader.
With Raft, everything is embedded into your ordering node. Of all consensus algorithms in Hyperledger Fabric, Raft supports the largest numbers of channels and transactions.
Raft is the go-to ordering service choice for production networks.
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