Tendermint
Due to work reasons, I began to contact Hyperledger Fabric two years ago, and its community is still very active. It has developed from v0.7 in that year to v2.0 now. But I have to say that Fabric's consideration is still very big, which is difficult for secondary development. So recently, we began to turn to Tendermint, because it is simpler, easier to understand, and higher performance (which is what Tendermint itself boasts), but in fact, compared with Fabric, it is easier to understand and develop application systems of blockchain.
abstract
Tendermint consists of two main parts: one is responsible for consensus, the other is application program interface. The consensus engine is called Tendermint Core, and the application program interface is called ABCI (Application BlockChain Interface). With ABCI, you can develop your own business logic. The Tendermint Core is responsible for consensus, p2p communication, and state replication. That is to say, the core function of blockchain is finished by Tendermint Core, and your own business logic can be developed by ABCI, and can be developed by any language.
Tendermint is developed using golang. Although you can use any development language for business logic development, if you also use golang, you can integrate your program on the Tendermint Core, and use the -- proxy ﹣ app parameter to proxy, so you can publish your blockchain application cleanly and efficiently.
Single machine deployment
Get source code
mkdir -p $GOPATH/src/github.com/tendermint cd $GOPATH/src/github.com/tendermint git clone https://github.com/tendermint/tendermint.git cd tendermint
Setting environment variables
echo export GOPATH=\"\$HOME/go\" echo export PATH=\"\$PATH:\$GOPATH/bin\" echo export GO111MODULE=on
Compile
# Getting dependencies and related tools make tools # Compile and install under $GOPATH/bin make install # Compile and install to. / build make build
Verification
(base) frank@deepin:~/project/go/tendermint/bin$ ./tendermint version 0.32.8-7be74c73
So far, your deployment of tendermint is complete.
Function
(base) frank@deepin:~/project/go/tendermint/bin$ ./tendermint init I[2020-01-29|16:34:14.742] Generated private validator module=main keyFile=/home/frank/.tendermint/config/priv_validator_key.json stateFile=/home/frank/.tendermint/data/priv_validator_state.json I[2020-01-29|16:34:14.742] Generated node key module=main path=/home/frank/.tendermint/config/node_key.json I[2020-01-29|16:34:14.743] Generated genesis file module=main path=/home/frank/.tendermint/config/genesis.json
The tendermint init command initializes the necessary configuration and related files for the operation of tendermint.
(base) frank@deepin:~/.tendermint$ pwd /home/frank/.tendermint (base) frank@deepin:~/.tendermint$ tree . ├── config │ ├── config.toml │ ├── genesis.json │ ├── node_key.json │ └── priv_validator_key.json └── data └── priv_validator_state.json 2 directories, 5 files
If paper runs in single mode you don't need to make any changes.
(base) frank@deepin:~/project/go/tendermint/bin$ ./tendermint node --proxy_app=kvstore I[2020-01-29|16:50:44.382] Version info module=main software=0.32.8 block=10 p2p=7 I[2020-01-29|16:50:44.402] Starting Node module=main impl=Node I[2020-01-29|16:50:44.420] Started node module=main nodeInfo="{ProtocolVersion:{P2P:7 Block:10 App:1} DefaultNodeID:64c7a4a9c8fc2b8a524ae837b82fdc3e2d312e3d ListenAddr:tcp://0.0.0.0:26656 Network:test-chain-2uWypP Version:0.32.8 Channels:4020212223303800 Moniker:deepin Other:{TxIndex:on RPCAddress:tcp://127.0.0.1:26657}}"
--The proxy app parameter indicates the application of the abdermint core proxy abci. kvstore is an example of abdermint's own abci.
