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Logging and monitoring
Exporting metrics for further analysis
• There are several monitoring tools which can
extract and visualize blockchain metrics, e.g.:
• Grafana is a general purpose
dashboard and graph composer,
available at metrics.[region.]bluemix.net
• Sysdig is an systems monitoring and
troubleshooting service, available on
IBM Cloud
• Prometheus is a monitoring and
alerting toolkit that aggregates time
series data
• IBM Blockchain Platform exposes a /metrics
endpoint that can be used by tools for this
purpose.](https://image.slidesharecdn.com/hyperledgerblockchainmeetupshort2-191025072245/75/Hyperledger-blockchain-meetup-Milano-23-10-2019-34-2048.jpg)
Uploaded byCarlo Ferrarini
Hyperledger & blockchain meetup - Milano 23.10.2019
This document provides a summary of a meetup about blockchain and Hyperledger. It includes an agenda with presentations on blockchain market trends, Hyperledger news, sharing experiences using Hyperledger Fabric, and developing and governing Fabric networks with IBM Blockchain Platform. Presenters include representatives from IBM and other companies.
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Hyperledger & blockchain meetup - Milano 23.10.2019
- 1. Blockchain & Hyperledgermeetup Carlo Ferrarini Blockchain Technical Leader IBM Italy
- 2. WELCOME! 23 ottobre presso#IBMstudios Milano idee a confronto nel #meetup dedicato a #blockchain e Hyperledger. Prendi parte anche tu alla conversazione! https://www.meetup.com/it-IT/IBM-Cloud-Italia/ https://www.meetup.com/it-IT/Hyperledger-Milano/
- 3. Blockchain Market recap &Hyperledger news C. Ferrarini Sharing Experiences L. Carraro – M. Romanelli E. Vernini M. Tellarini R. Carlini …… Developing and Governing Fabric with IBM Blockchain Platform C. Ferrarini – G. Ciano
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- 6. 3.5 Years since launch 4 Libraries 4 Tools 5 Distributed Ledgers 3 1.0+Production Releases 275+ Members (50+ in AsiaPac) 14 Active Community Working Groups & Special Interest Groups 175+ Meetups Worldwide (75+ countries) 62K+ Meetup Participants 2,000+ Media Clips Per Month Hyperledger Momentum
- 7. Hyperledger has amodular approach to hosting projects. Think of Hyperledger as a greenhouse growing and sustaining business blockchain projects from seed to fruition. The Linux Foundation and Hyperledger provide the infrastructure for open development to occur among a diverse and thriving community.
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- 9. Major Project Releases TheAlpha release of Hyperledger Fabric v2.0 allows users to try out the new support for decentralized governance of smart contracts. The Iroha 1.0 release happened in May and included YAC Consensus, Fully Operational Multisignature, updated client libraries and Windows support
- 10. Special Interest Groups(SIG) Current SIG Proposals: ● Education Architecture For more information or to get involved, please visit: https://wiki.hyperledger.org/displ ay/HYP/Special+Interest+Groups Newest SIGs: HYPERLEDGER Supply Chain Special Interest Group Focused on the implementation of enterprise- grade solutions utilizing the Hyperledger greenhouse of business blockchain frameworks and tools (launched May) HYPERLEDGER Capital Markets Special Interest Group Focused on studying how Hyperledger DLTs interact with Capital Markets use cases and exploring architecture, identity and performance related considerations (launched July)
- 11. New Technical WorkingGroups For more information or to get involved, please visit: https://wiki.hyperledger.or g/display/DCI/ HYPERLEDGER Diversity, Civility and Inclusion Working Group This group is focused on measuring and improving the health of our open source community. We seek to provide constructive recommendations to the TSC, projects, and working groups. All are welcome to join us and help Hyperledger continue to grow in a diverse, civil, and inclusive way.
- 12. Training and Certifications Visit:https://www.hyperledger.org/resources/training Technical training courses and professional certifications to get you up-to-speed on Hyperledger with the highest quality training from The Linux Foundation and Hyperledger Training Partners. New Professional Certifications! ● Certified Hyperledger Sawtooth Administrator (CHSA) ● Certified Hyperledger Fabric Administrator (CHFA). ● Certified Hyperledger Fabric Developer (CHFD) (coming soon Q1 2020!) MOOCs - Blockchain: Understanding Its Uses and Implications - Introduction to Hyperledger Technologies - Hyperledger Fabric Fundamentals - Hyperledger Sawtooth Administration - Hyperledger Fabric Administration
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- 14. Hyperledger Global Forum2020 ● More than 1,200 users and contributors of Hyperledger projects from across the globe to meet, align, plan and hack together in-person. Phoenix, AZ, March 3-6, 2020 ● Registration is now open! individual, academic, Govt rates available. ● We encourage you to submit a talk by Sept 27! {extended to Oct 4th!} ● Please help us promote the event on your channels using #HyperledgerForum
- 15. 62,000+ Members 175+Groups 75+ Countries Growing Global Meetup Community
- 16. Hyperledger embraces thefull spectrum of industry use cases, especially enterprise scenarios with widely varied requirements for decentralization, trust, continuity and confirmation times. Each represents a potentially unique optimization point for the technology.
- 17. Hyperledger Fabric isan enterprise-grade permissioned distributed ledger framework for developing solutions and applications. Its modular and versatile design satisfies a broad range of industry use cases. It offers a unique approach to consensus that enables performance at scale while preserving privacy. Fabric v1.4.3 is the current long-term support (LTS) release, which includes RAFT consensus. 2.0-alpha was released in April with support for decentralized governance of smart contracts. 200+ devs across 100+ companies contributing. Hundreds of pilot and production networks deployed. Learn more at: https://wiki.hyperledger.org/display/fabric/Hyperledger+Fabric
- 18. 18 Requirements of blockchainfor business Participants decide which assets to share SHARED LEDGER Participants know who they are dealing with IDENTITY Participants give provable endorsement ENDORSEMENT Information shared is need-to-know CONFIDENTIALITY
- 19. Roadmap Based on https://wiki.hyperledger.org/display/fabric/Hyperledger+Fabric+Roadmap- Dates determined by the Hyperledger community - (*) Subject to change Late 2019 v2.0 • Decentralized chaincode governance • External chaincode support • Programming model improvements • Admin Node OU support • Performance improvements • Channels • Selective endorsement • SOLO/Kafka orderers • LevelDB or CouchDB v1.0 07/17 • Javascript chaincode • Connection profile • Encryption library • Attribute access control • CouchDB indexes • Channel based events v1.1 03/18 • ACLs • Service discovery • Pluggable endorsement / validation • Private Data Collections v1.2 07/18 • State based endorsement • Java chaincode • CouchDB pagination • Identity Mixer • Burrow EVM v1.3 10/18 • Operational metrics and logging • SDK and SHIM improvements • Long Term Service (LTS) support v1.4 1/19 • Kafka to Raft migration • Peer administration improvements v1.4.1 4/19 v2.x Future v1.4.2 7/19 • Post-order execution • Ledger checkpoint and archiving • Privacy enhancements • Raft consensus • Additional metrics
- 20. Blockchain Market recap &Hyperledger news C. Ferrarini Sharing Experiences L. Carraro – M. Romanelli E. Vernini M. Tellarini R. Carlini …… Developing and Governing Fabric with IBM Blockchain Platform C. Ferrarini – G. Ciano
- 21. 21 Blockchain Technical Concepts& Components Peers are the networked services that maintain ledger state and run smart contracts Smart contracts constitute the transaction logic whose output is agreed by the peer network Consensus is the process by which agreement is obtained on the peer network ✓ ✓ ✓ Channels are defined subsets of the peer network that share a single ledger Certificate authorities provide identity services to participants on the network 🔑 🔑 The Ordering Service agrees transaction sequence and distributes blocks to peers
- 22. 22 Hyperledger Fabric V1.xArchitecture Client Application SDK (HFC) Membership Services Peer Endorser Ledger Committer A Chaincode B !Events Ordering-Service O O O O Fabric-CA External-CA Hyperledger Fabric Network optionaloptional Admin
- 23. 23 Advanced tooling Create &manage smart contracts, applications & networks Open technology Hyperledger Fabric, Containers, Kubernetes Deploy anywhere Comprehensive cloud & on-premises options Introducing IBM Blockchain Platform Build, operate and grow Hyperledger Fabric networks Developer tools Operator tools kubernetes Kubernetes on prem IBM Kubernetes Service Container virtualization & orchestration Multi-cloud deployment kubernetes
- 24. 24 Fabric 2.0 &Kubernetes Integrating cloud native, container orchestration capabilities within Fabric • Peer and Chaincode cloud native deployment support (FAB-13582) • External chaincode builder and launcher (FAB-13584) • Serviceability - Monitor health for Fabric runtime components (FAB-10851)
- 25. 25 «At the heartof a blockchain network is a smart contract» (cit. Hyperledger Fabric)
- 26. 26 Contracts vs. modelsvs. chaincode • Chaincode should be closely linked to legal contracts and models • They could be thought of as being different renderings of the same information for different constituencies • Explicit links between the three artefacts can ensure correctness of implementation • For Hyperledger Fabric, these three artefacts can be collectively thought of as the smart contract Commercial Paper Issuer: Owner: Face value: $ Matures: YY-mm- dd Cash Issuer: Owner: Face value: $ Issue Buy Redeem ISSUER: {{cp.issuer}} states that it will pay the OWNER {{cp.owner}} AMOUNT {{cp.face_value}} on or after MATURITY DATE {{cp.date}}. Legal Contract Model Chaincode For the lawyer For the business user For the developer
- 27. 27 Hyperledger Fabric V1.xArchitecture Client Application SDK (HFC) Membership Services Peer Endorser Ledger Committer A Chaincode B !Events Ordering-Service O O O O Fabric-CA External-CA Hyperledger Fabric Network optionaloptional Admin
- 28. 28 Blockchain developer Smart Contract submitsdevelops develops recorded accesses event emits emits D Ledger ‘get’, ‘put’, ‘delete’ Client Application SDK ! ! Worldstate block txn txn txn Blockchain Peer event How applications interact with the ledger
- 29. © 2018 IBMCorporation 29 Programming Smart Contracts • A smart contract governs the lifecycle of an object. e.g. createCar, queryCar, updateCar, scrapCar... • Implemented as a class; method contains relevant transaction logic in JavaScript, TypeScript, Java & Go • Installed on relevant organizations' peer(s). Execution results in digitally signed transaction response. @Contract(name="org.papernet.commercialpaper") @Default class CommercialPaper implements ContractInterface { public Context createContext(ChaincodeStub stub) { return new CommercialPaperContext(stub); } @Transaction public CommercialPaper issue( CommercialPaperContext ctx, String issuer, String value, String date, int faceValue) { // Interact with the ledger getState(existingPaper); putState(newPaper); ...
- 30. 30 The IBM BlockchainPlatform toolset • IBM Blockchain Platform comprises an intuitive set of tools for building, operating and growing Hyperledger Fabric networks • The purpose of this presentation is not to guide you through every feature of the tools – you will find them intuitive! • We will instead focus on useful tips, and things you might need to remember when using them VS Code IBM Blockchain Platform Extension IBM Blockchain Platform Console Kubernetes Dashboard
- 31. © 2018 IBMCorporation 31 Smart contract development flow with IBM Blockchain Platform https://cloud.ibm.com/docs/services/blockchain?topic=blockchain-develop-vscode
- 32. 32 VS Code IBMBlockchain Platform Extension Demo ! Click here (Or Ctrl+P “> IBM Home”) to return to this Home page in the future if you need to Output from running commands etc. Notifications Switch to IBM Blockchain Platform view Tutorials here!Views: Smart contracts Fabric Environments Gateways Wallets
- 33. 33 Useful links • IBMBlockchain Platform: https://cloud.ibm.com/docs/services/blockchain?topic=blockchain-get-started-ibp • Installation VS Code Extension: https://cloud.ibm.com/docs/services/blockchain?topic=blockchain-develop-vscode&locale=it • IBM Developer VS Code Extension: https://developer.ibm.com/tutorials/ibm-blockchain-platform-vscode-smart-contract/ • GitHub VS Code Extension: https://github.com/IBM-Blockchain/blockchain-vscode-extension • Chiaincode for Developers: https://hyperledger-fabric.readthedocs.io/en/release-1.4/chaincode4ade.html • Project Home: https://www.hyperledger.org/projects/fabric • GitHub Repo: https://github.com/hyperledger/fabric • Latest Docs: https://hyperledger-fabric.readthedocs.io/en/latest/
- 34. 34 Logging and monitoring Exportingmetrics for further analysis • There are several monitoring tools which can extract and visualize blockchain metrics, e.g.: • Grafana is a general purpose dashboard and graph composer, available at metrics.[region.]bluemix.net • Sysdig is an systems monitoring and troubleshooting service, available on IBM Cloud • Prometheus is a monitoring and alerting toolkit that aggregates time series data • IBM Blockchain Platform exposes a /metrics endpoint that can be used by tools for this purpose.
- 35. Blockchain Market recap &Hyperledger news Sharing Experiences Developing and Governing Fabric with IBM Blockchain Platform
- 36. Blockchain Market recap &Hyperledger news C. Ferrarini Sharing Experiences L. Carraro – M. Romanelli E. Vernini M. Tellarini R. Carlini …… Developing and Governing Fabric with IBM Blockchain Platform C. Ferrarini – G. Ciano
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