|Global event||Hyperledger Global Forum|
|Public / Private / Permissioned||Private, Permissioned|
|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.
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