From the Fabric docs: "If you want to build a dashboard or collect aggregate data as part of your application, you can query an off-chain database that replicates the data from your blockchain network

#fabric-chaincode #hyperledger-fabric #couchdb

Hello, After the migration of our fabric setup from 1.4.4 version to 2.0, we have observed the private data logs getting appeared in the peer logs even though we are not using any private data collect

#fabric #fabric-chaincode

Hello guys, Sorry for being such a pain in the ass, but could one please help with that darn performance issue ? I have tried to strip down my chaincode and do a copy-past of what the FabCar java chai

#couchdb #fabric-chaincode #fabric-sdk-java

Hi, I am trying to setup HLF to run in K8s. I see that peer is starting chaincode container and chaincode container is running succesfully. But instantiation step is exiting with EOF and when I perfor

#fabric-chaincode

Btw, FoundationDB org officially supports a document layer (https://github.com/FoundationDB/fdb-document-layer based on MongoDB API) on top of the foundationDB. As it is a multi-modal database, they a

#fabric #fabric-chaincode

Hi everyone, I have this wiered MVCC-conflict issue. It appears occasionally as I benchmark my Java chaincode. I tried everything I possibly could to prevent its occurance. Now, I am going to list the

#hyperledger-fabric #fabric-chaincode #consensus #raft

Not quite... MVCC in validation/commit phase checks the chaincode execution readset key version against current state key version to ensure that the execution results are still valid. Therefore if the

#fabric-orderer #fabric-chaincode

Hi, I am using Hyperledger fabric 1.4.7 and using the fabcar as an example to build a sample network and using the Go sdk. Its the same code base as in the fabric-samples just that I have taken it and

#fabric-chaincode #fabric-sdk-go #hyperledger-fabric

Hello; The Wasm Smart Contracts RFC was discussed on the Contributors Call yesterday. I've added a couple of comments to the Wasm Smart Contract RFC from the discussion. Based on this can ask the main

#fabric-rfcs #fabric-chaincode

Hi, I currently trying to add a new index to my 1.4 network. I have the folders correctly set too. When I update the chaincode with the new index folder I can see that my peers have the package correc

#couchdb #fabric-chaincode

Hello, guys. I want to send events from commit transaction listener to some message brokers like rabbitmq or apache kafka, my intention is notify others systems to do some action. I found something si

#fabric-chaincode

hello, What is the best way to write test cases for smart contracts written in golang using the fabric-contract-api-go Thanks in advance

#fabric-chaincode

Hello everyone, My question is much like the title, I asked this in fabric rocket chat but unfortunately I didn't get any answer. Basically what my question is if Fabric and what comes of it, like cha

#fabric #fabric-chaincode

Thank you for your answer! I used your javaenv image. I try the "Write your FIrst Application" tutorial for java and when I run the app after building dependencies: (mvn test for fabcar application an

#fabric-chaincode

Hi Chris, Here is the package command: # peer lifecycle chaincode package chaincode.tar.gz --path chaincode/chaincode/javascript/ --lang nod e --label counter_v1 2020-08-28 06:04:04.548 UTC [bccsp] Ge

#fabric-chaincode #hyperledger-fabric #fabric-sdk-node

Hi, I‘m looking for an example how to setup TLS for the shim.chaincode server. I would like to know how I can setup an example with TLS enabled.

#fabric-chaincode #tls

Hi David, The chaincode is performing a select query on the CouchDB documents, and the fields set for filtering the results are indexed while installing and instantiating the chaincode. The single que

#couchdb #fabric-chaincode #hyperledger-fabric

when my GO chaincode has reference to fabric code, the go.mod would pick the following version reference: github.com/hyperledger/fabric v2.1.1+incompatible I cannot change the version to v2.2.1, becau

#fabric #fabric-chaincode

If you call statebased.NewStateEP(ep), the returned KeyEndorsementPolicy will make all identities required to endorse. Even if the original EP requires only 2 outOf 3 orgs to endorse, the policy retur

#fabric #fabric-chaincode

Hi, If I get your questions right, you want to fetch the MSPID of the peer that starts/endorses the chaincode. For that purpose you can use the chaincode shim API. In case it is java based chaincode y

#fabric #fabric-chaincode #fabric-questions