Stack Overflow
Stack Overflow

Questions tagged [hyperledger-fabric]

Hyperledger Fabric is an implementation of blockchain technology. Use this tag for questions about this project.

Use this tag for questions about this project.

Another good idea is to reach out to the community at

Documentation can be found at

Refer development lifecycle and officially provided resources at

6206 questions
10
votes
1 answer

Byzantine fault tolerance (BFT) and Crash fault tolerance (CFT)

Crash fault tolerance (CFT) is one level of resiliency, where the system can still correctly reach consensus if components fail. While Byzantine fault tolerance (BFT), which says the orderer can do its job even in the presence of malicious actors.…
BlockchainGeek
  • 201
  • 1
  • 3
  • 10
10
votes
1 answer

Hyperledger Fabric Composer - restricting access rights of system administrators

My question is on access control in hyperledger fabric composer. Assume you have a business network, in which you have the following participants: Sellers (Potential) Buyers A seller is an employee of a company that sells products to a buying…
steady_progress
  • 3,311
  • 10
  • 31
  • 62
10
votes
2 answers

What is the size of the default block on hyperldger fabric?

I'm trying to create a estimation of the size of a chain if i create a new blockchain using hyperldger. In order to have an idea of disk space usage i would like to know that is the average size of a default block in the hyperldger fabric. Thank…
Cortesao
  • 123
  • 1
  • 5
10
votes
2 answers

Hyperledger Fabric scalability

I have an already built Hyperledger Fabric system which can process x tps(transaction per second). In the future, maybe the requirement for the system is not just x tps. Then, how to scale up Hyperledger Fabric system to satisfy higher requirement?
CK01
  • 431
  • 4
  • 9
10
votes
8 answers

Error: got unexpected status: FORBIDDEN -- Failed to reach implicit threshold of 1 sub-policies, required 1 remaining: permission denied

My fabric version is 1.1.0-preview, the peer, orderer, configtxgen is newly generated. when I execute the configtxgen tool: configtxgen -profile SoloOrdererGenesis -outputBlock genesis.block configtxgen -profile mych -outputCreateChannelTx…
Jim Green
  • 1,088
  • 3
  • 15
  • 40
10
votes
2 answers

panic: http: multiple registrations for /debug/requests

I vendored two projects in my go project. And I successfully compiled my project. When I ran my project, it reported error "panic: http: multiple registrations for /debug/requests". The detailed errors is shown below. goroutine 1…
Chalex
  • 321
  • 2
  • 9
10
votes
6 answers

Error when try to instantiate chain-code on Hyperledger Fabric

I was trying to create a custom business network based on the specification described here: https://hyperledger-fabric.readthedocs.io/en/latest/build_network.html#using-couchdb I have created 5 peers for org1.example.com and one peer for…
branko terzic
  • 654
  • 1
  • 8
  • 27
10
votes
2 answers

Hyperledger Fabric CLI docker container

I have couple a questions regarding HF CLI docker container and some of CLI commands. First of all, can someone explain the purpose of this container in context of docker container which is started alongside other docker containers required for HF…
branko terzic
  • 654
  • 1
  • 8
  • 27
10
votes
2 answers

Hyperledger Fabric - Core.yaml

I see a lot of examples for Hyperledger Fabric where I don't find core.yaml file in all examples. I see a lot of other files. And at many places, core.yaml is referred. Is there any other file, that corresponds to it? From where this, core.yaml…
Raj Wadhwa
  • 335
  • 2
  • 13
10
votes
3 answers

How do we enforce privacy while providing tracing of provenance using multiple channels in Hyperledger Fabric v1.0?

In Hyperledger Fabric v0.6, a supply chain app can be implemented that allows tracing of provenance and avoids double-spending (i.e., distributing/selling items more than it has) and thus avoids counterfeit. As an example, when a supplier supplies…
A Pantola
  • 315
  • 2
  • 15
10
votes
7 answers

hyperledger fabric make error :"goimports: command not found"

when I build make the hyperledger fabric project ,I have the following error.but I have install the goimports successfully. To find the reason, I run ./scripts/golinter.sh alone, and there is no such error.what is the error reason,when I make the…
kuku
  • 101
  • 1
  • 1
  • 5
9
votes
4 answers

Hyperledger Test Network - failed to create new connection: context deadline exceeded

I'm trying to create a channel in the test-network in Hyperledger Fabric samples: localhost:~/fabric-samples/test-network$ ./network.sh createChannel but I get this error: Error: failed to create deliver client for orderer: orderer client failed to…
Daniele Chirivì
  • 466
  • 4
  • 11
9
votes
1 answer

hyperledger configtxgen error

I am actually trying to build two blockchains on two diffents VPS. The first one is working but after many hours of research, i didn't find why the second blockchain don't want to build. I built the crypto-config folder, it is OK, but when I try to…
karl vignon
  • 93
  • 1
  • 6
9
votes
3 answers

Error: Cannot find module './api' (Hyperledger composer)

After installing Hyperledger Composer cli from this page, I tried to call composer command but got this error: module.js:549 throw err; ^ Error: Cannot find module './api' at Function.Module._resolveFilename (module.js:547:15) at…
AshT
  • 535
  • 1
  • 8
  • 20
9
votes
2 answers

MVCC_READ_CONFLICT when submitting multiple transactions concurrently

I have a conceptual question. I'm performing async requests to Composer REST and I'm getting message: 'error trying invoke chaincode. Error: Peer has rejected transaction \'552b42fa4d2cfd366ff1b7d01371878f53f7553b44f141187c6db86b75f68906\' with cdoe…
Dan Selman
  • 2,287
  • 2
  • 9
  • 18
1 2
3
…
99 100