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Key Points
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| Reference_description_with_linked_URLs____________________________ | Notes____________________________________________________________ |
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| https://wiki.hyperledger.org/display/fabric/Design+Documents | Fabric Design documents from wiki - see github and Jira also |
| https://jira.hyperledger.org/secure/Dashboard.jspa?selectPageId=10104 | Fabric product roadmap - JIRA |
| https://wiki.hyperledger.org/display/fabric/Playbacks | Fabric playbacks of design docs |
| https://lists.hyperledger.org/g/fabric/topics | List server messages |
| https://wiki.hyperledger.org/display/HYP/Calendar+of+Public+Meetings | Fabric public meetings calendar |
| https://chat.hyperledger.org/channel/fabric-maintainers | Fabric rocket chat channels |
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| https://jira.hyperledger.org/browse/FAB-106?jql=project%20%3D%20FAB%20AND%20issuetype%20%3D%20Epic%20AND%20fixVersion%20in%20(v2.0.0%2C%20v2.1.0)%20ORDER%20BY%20%20key | Jira Fabric product query |
| file:///C:/Users/Jim%20Mason/Google%20Drive/_docs/howto/tech/blockchain/hyperledger/fabric/docs/design/v2.0/Hyperledger%20JIRA%202019-06-21T14_34_03-v2p0-carrot.xlsx | download of Jira Fabric product query |
https://github.com/IBM/hlf-internals
| Fabric Internal Architecture - IBM - v1.4x |
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| IBM Blockchain |
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| https://finance.yahoo.com/news/ibm-announces-multicloud-blockchain-215700061.html | IBM Blockchain uses Kubernetes to create networks joining peer nodes from Azure, AWS and Google |
| https://bmos299-fabric.readthedocs.io/en/latest/protocol-spec.html | OLD 3rd party copy of Fabric docs |
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| Fabric Features- More resources |
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https://slideplayer.com/slide/14489867/ https://drive.google.com/open?id=1D2feED5WxdgxWQLdSPb5t87TFV50OFI4 | Private Data Collections - 2018 - slides |
| https://lists.hyperledger.org/g/fabric/topic/question_about_implicit/31717564?p=,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,0,31717564 | Implicit private data collections answer - 2019 |
| https://drive.google.com/open?id=1mxdeUuEymgtmx1dF5Azz5Ph_2F1-7cfM | Fabric Private Data Concepts |
| https://drive.google.com/open?id=1g7vK3kgb1qtnP7pgF1oznDavtesodk9p | Fabric SideDb |
| External Chaincode execution from build packs vs Docker |
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| Fabric component services |
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| m gRPC | gRPC to executes the smart contract deployed through the chaincode as a remote process that interacts with peer via gRPC. |
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| Fabric interfaces |
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https://github.com/hyperledger/fabric-chaincode-evm https://raw.githubusercontent.com/hyperledger/fabric-chaincode-evm/master/EndToEnd.png | Hyperledger Fabric EVM chaincode enables one to use the Hyperledger Fabric permissioned blockchain platform to interact with Ethereum smart contracts written in an EVM compatible language such as Solidity or Vyper. |
| https://wiki.hyperledger.org/display/HYP/Gardener | Gardener - oracle support for external data in smart contracts |
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| Deployment and Management |
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| https://drive.google.com/open?id=1so3SSqnNoCvvG76Ip6ESuR8b_ySg1rNr | Justitia - manage and deploy by node w multiple admins |
| https://drive.google.com/open?id=1-LmT_RAUS96uiJYMLNbgWhKkvqizx90Y | Kubernetes lab for Fabric v1.3 - 2018 |
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After transaction commit completion notification, validate block hashes the same on peers if desiredÂ
Each peer logs its block commit hash every block at INFO level. The block commit hash is a hash over all valid transactions that are written to state database. So you can compare block commit hashes across peers to ensure no fork. Look for a peer INFO message every block containing 'commitHash', e.g.:
commitHash=[0d01cbc2d186675855d5b52f2bda5050ff7238d2527062d0fd5c0a8220d817fa]
Some users do like to validate query results by querying a 2nd peer to ensure they get the same results, that certainly is a valid pattern for critical applications.
Related upcoming work:
https://jira.hyperledger.org/browse/FAB-106 - A 'checkpoint' feature will allow peers to bootstrap a channel from a known good state without having to process all prior blocks since genesis block. The feature can also be used to compare global state across peers.
https://jira.hyperledger.org/browse/FAB-33 - BFT for ordering service to ensure a sufficient number of ordering service nodes sign off on blocks.
We will socialize RFCs for these proposed work items once they become available.
Thanks,
Dave Enyeart
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