hyperledger leader peer endorsing peer committing peer

leader peer 是peer之間動態選舉選出的

endorsing peer 預設為每個peer都是，安裝chaincode後，實例化設定policy可以有變化

committing peer 預設為每個peer都是

https://medium.com/@kctheservant/transactions-in-hyperledger-fabric-50e068dda8a9
https://stackoverflow.com/questions/52893818/difference-between-endorsing-peer-and-committing-peer-in-hyperledger-fabric/52894994

Hyperledger Hurley is the development environment toolset

https://github.com/worldsibu/hurley#readme

[轉]covalent hyperledger code sample

https://docs.covalentx.com/article/73-code-samples

[轉]Hyperledger Composer is deprecated

https://hackernoon.com/hyperledger-composer-is-deprecated-kuzqu31cb

Hyperledger KC Tam

https://medium.com/@kctheservant

http://www.ledgertech.biz/kcarticles.html


===========
https://hyperledger-fabric.readthedocs.io/en/release-1.4/tutorials.html

參考 [轉] Hyperledger Fabric 1.2系列 -- 将组织添加进通道： 手动执行

https://www.jianshu.com/p/09c67924da90

[轉]Hyperledger Fabric BYFN之配置進階篇

https://www.itread01.com/content/1550412200.html

1. byfn.sh up down會清理所有容器映象，生成的配置檔案和證書，現實場景應該可以停止或恢復區塊鏈網路，該如何處理？

byfn.sh down會呼叫networkdDown去銷燬整個網路和已生成的配置。byfn.sh restart則不會清理。

...........

注意

docker-compose down會停止和刪除容器,網路，映象和對映的卷。

只是停止服務的話的會最好使用docker-compose stop。

docker-compose up則是建立和啟動容器服務, 這裡用於啟動。

我們也可以參考例子fabric-samples/fabcar, 它會重用fabric-samples/basic-network中的start.sh, stop.sh允許停止和重啟。

2. byfn.sh還是fabcar兩個例子即使重啟區塊鏈網路，通道需要創新建立，節點需要重新加入通道，鏈碼也要全要重新安裝，如果節點多維護起來就麻煩且費時，重啟的時候能讓通道，節點，鏈碼，State DB自動恢復？

這自然是有的，但是必須開啟orderer， peer等的持久化配置。

...........

  orderer.example.com:
  ...
 - /mnt/hyperledger/orderer:/var/hyperledger/production/orderer


  peer0.org1.example.com:
  ...
  - /mnt/hyperledger/org1/peer0:/var/hyperledger/production


  couchdb:
  ...
  - /mnt/hyperledger/couchdb:/opt/couchdb/data

4. Peer節點我們配置了兩個埠，配置用來做什麼？

ports:

      - 7051:7051

      - 7053:7053

7051是Peer啟動的gRPC, 一般是客戶端應用接入。

7053是事件埠(Peer Event)

..........

Fabric 1.1之後peer event做了完全不同的設計，訊息的監聽不在peer節點了，而是基於channel，這樣設計提供了對Peer資料更細粒度的採訪控制和提供了接收訊息的可靠性。(官方文件是這麼扯，我也有點疑惑) 主要提供兩種服務，Deliver(通知提交到記賬本的整個區塊內容) 和DeliverFiltered(過濾一些區塊減少訊息通知返回的區塊大小)

[DIY] HyperLedger

1. Use docker-machine crate docker vm.

And install docker-compose.

2. https://github.com/hyperledger/fabric-samples

# Fetch bootstrap.sh from fabric repository using
curl -sS https://raw.githubusercontent.com/hyperledger/fabric/master/scripts/bootstrap.sh -o ./scripts/bootstrap.sh

# Change file mode to executable
chmod +x ./scripts/bootstrap.sh

# Download binaries and docker images
#./scripts/bootstrap.sh [version] [ca version] [thirdparty_version]

./scripts/bootstrap.sh

Here use all default value.

3. https://hyperledger-fabric.readthedocs.io/en/latest/build_network.html

# Start Run

cd fabric-samples/first-network  
./byfn.sh generate
./byfn.sh up

4. Hope you see

===================== Query successful on peer1.org2 on channel 'mychannel' =====================

========= All GOOD, BYFN execution completed ===========

5. check docker ps Need like this

PS：

1. See Error

2019-11-06 02:22:34.819 UTC [main] InitCmd -> ERRO 001 Cannot run peer because cannot init crypto, folder "/opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp" does not exist
!!!!!!!!!!!!!!! Channel creation failed !!!!!!!!!!!!!!!!
========= ERROR !!! FAILED to execute End-2-End Scenario ===========

How to Fix

cd fabric-samples/first-network  
./byfn.sh down
./byfn.sh generate  #This maybe don't need
./byfn.sh up

6. How to querying chaincode again

https://learnblockchain.cn/2019/07/03/chaincode-run/

docker exec -it cli bash

root@73e65944cade:/opt/gopath/src/github.com/hyperledger/fabric/peer>


root@73e65944cade:/opt/gopath/src/github.com/hyperledger/fabric/peer>  peer chaincode query -C mychannel -n mycc -c '{"Args":["query","a"]}'

# peer chaincode query This command come from e2etest that you first time See This message:
========= All GOOD, BYFN execution completed =========== 
Then just find screen up, can see "peer chaincode query ooxxooxxooxx". Please copy it then use in here.

9-HyperLedger-Fabric原理-MSP详解（一）-MSP基础

https://zhuanlan.zhihu.com/p/35683522

Helm charts for running and operating Hyperledger Fabric in Kubernetes

https://github.com/apggroeifabriek/pivt

hyperledger crypetogen

https://hyperledger-fabric.readthedocs.io/en/release-1.4/commands/cryptogen.html

cryptogen is an utility for generating Hyperledger Fabric key material. It is provided as a means of preconfiguring a network for

testing purposes

. It would normally not be used in the operation of a production network.

hyperledger Ansible

https://ibmcode-staging.us-east.containers.mybluemix.net/announcements/provision-hyperledger-fabric-on-multiple-vms-using-ansible/

https://github.com/hyperledger-labs/fabric-vms-provision


https://github.com/hyperledger/cello/tree/master/src/agent/ansible
https://cello.readthedocs.io/en/latest/tutorial/

hypderledger composer

https://hyperledger.github.io/composer/

https://www.mchampaneri.in/2018/03/setup-development-environment-for.html

https://www.codementor.io/hajsf/install-hyperledger-fabric-at-win-10-tb85r9dqg


https://medium.com/beyondi/setup-and-build-hyperledger-fabric-blockchain-applications-b7c476f9cef2


https://mindf.org/setting-up-ubuntu-18-04-on-virtualbox-for-hyperledger-fabric/

[轉]HyperLedger Fabric 架构设计中的模式创新

https://www.chongdongshequ.com/article/1544005544333.html