The consensus mechanism in Hyperledger Fabric consists of three steps:
- Transaction endorsement: This process endorses the transactions by simulating the transaction execution process.
- Ordering: This is a service provided by the cluster of orderers which takes endorsed transactions and decide on a sequence in which the transactions will be written to the ledger.
- Validation and commitment: This process is executed by committing peers which first validates the transactions received from the orderers and then commit that transaction to the ledger.
These steps are shown in the following flowchart:
The consensus flow