CouchDB When using external CouchDB state database, read delays during endorsement and validation phases have historically been a performance bottleneck. With Fabric v2.0, a new peer cache replaces many details. A transaction that is distributed to all peer nodes in the network is validated in two phases by each peer. Firstly, the transaction is checked to ensure it has been signed by sufficient organizations Specifically, applications that want to update the ledger are involved in a process with three phases that ensures all of the peers in a blockchain network keep their ledgers consistent with each other

CouchDB • When using external CouchDB state database, read delays during endorsement and validation phases have his- torically been a performance bottleneck. • With Fabric v2.0, a new peer cache replaces Release master A transaction that is distributed to all peer nodes in the network is validated in two phases by each peer. Firstly, the transaction is checked to ensure it has been signed by sufficient organizations Specifically, applications that want to update the ledger are involved in a process with three phases that ensures all of the peers in a blockchain network keep their ledgers consistent with each other

CouchDB When using external CouchDB state database, read delays during endorsement and validation phases have historically been a performance bottleneck. With Fabric v2.0, a new peer cache replaces many Specifically, applications that want to update the ledger are involved in a process with three phases that ensures all of the peers in a blockchain network keep their ledgers consistent with each other details. A transaction that is distributed to all peer nodes in the network is validated in two phases by each peer. Firstly, the transaction is checked to ensure it has been signed by sufficient organizations

CouchDB When using external CouchDB state database, read delays during endorsement and validation phases have historically been a performance bottleneck. With Fabric v2.0, a new peer cache replaces many Specifically, applications that want to update the ledger are involved in a process with three phases that ensures all of the peers in a blockchain network keep their ledgers consistent with each other details. A transaction that is distributed to all peer nodes in the network is validated in two phases by each peer. Firstly, the transaction is checked to ensure it has been signed by sufficient organizations

CouchDB • When using external CouchDB state database, read delays during endorsement and validation phases have his- torically been a performance bottleneck. • With Fabric v2.0, a new peer cache replaces Specifically, applications that want to update the ledger are involved in a process with three phases that ensures all of the peers in a blockchain network keep their ledgers consistent with each other details. A transaction that is distributed to all peer nodes in the network is validated in two phases by each peer. Firstly, the transaction is checked to ensure it has been signed by sufficient organizations

CouchDB When using external CouchDB state database, read delays during endorsement and validation phases have historically been a performance bottleneck. With Fabric v2.0, a new peer cache replaces many Specifically, applications that want to update the ledger are involved in a process with three phases that ensures all of the peers in a blockchain network keep their ledgers consistent with each other details. A transaction that is distributed to all peer nodes in the network is validated in two phases by each peer. Firstly, the transaction is checked to ensure it has been signed by sufficient organizations

CouchDB • When using external CouchDB state database, read delays during endorsement and validation phases have his- torically been a performance bottleneck. • With Fabric v2.0, a new peer cache replaces Specifically, applications that want to update the ledger are involved in a process with three phases that ensures all of the peers in a blockchain network keep their ledgers consistent with each other details. A transaction that is distributed to all peer nodes in the network is validated in two phases by each peer. Firstly, the transaction is checked to ensure it has been signed by sufficient organizations

CouchDB • When using external CouchDB state database, read delays during endorsement and validation phases have his- torically been a performance bottleneck. • With Fabric v2.0, a new peer cache replaces Specifically, applications that want to update the ledger are involved in a process with three phases that ensures all of the peers in a blockchain network keep their ledgers consistent with each other details. A transaction that is distributed to all peer nodes in the network is validated in two phases by each peer. Firstly, the transaction is checked to ensure it has been signed by sufficient organizations

CouchDB When using external CouchDB state database, read delays during endorsement and validation phases have historically been a performance bottleneck. With Fabric v2.0, a new peer cache replaces many Specifically, applications that want to update the ledger are involved in a process with three phases that ensures all of the peers in a blockchain network keep their ledgers consistent with each other details. A transaction that is distributed to all peer nodes in the network is validated in two phases by each peer. Firstly, the transaction is checked to ensure it has been signed by sufficient organizations

completes, transactions will be deleted from txPool. 3. Core process PBFT consensus process includes 3 phases, Pre-prepare, Prepare and Commit: Pre-prepare: executes block, generates signature package and broadcast consensused nodes in group through PBFTEngine thread, other nodes receive Prepare package and start 3 phases of consensus. 3.2 Pre-prepare phase Consensused nodes enters pre-prepare phase after receiving block cached in Pre-prepare phase to data base. 3.5 View switching process When the 3 consensus phases of PBFT is time-out or nodes receive empty block, PBFTEngine will try to switch to higher view (the