Questions tagged [quorum]

Q&A related to Quorum, the permissioned Go implementation of Ethereum supporting data privacy.

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9 views

How to make geth node as a service?

I managed to setup Ethereum private network (using clique, Quorum's RAFT and IBFT) and managed to connect them to my own DApp via metamask. Now I am wondering, how to make the network that I just ...
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32 views

Quorum nodes run fine with docker-compose, but crash when deployed on kubernetes

Following the steps outlined here, I created a basic Quorum network with 4 nodes and IBFT consensus. I then created a docker image for each of the nodes, copying the contents of each node's directory ...
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Recover msg.sender in externally signed private transaction in Quorum

When I send an externally signed private transaction (contract bytecode) using the sendRawRequest API of quorum-js, the from field, or the msg.sender field at the solidity contract comes out as a ...
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46 views

Quorum nodes with different permissioned-nodes.json files

Is it possible for different Quorum nodes to have different permissioned-nodes.json files? suppose we have a 3 node network with node1, node2, and node3. Then can node1 include node3 in its ...
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Can a Quorum network be cloned?

I wanted to know if a Private Protected Network be cloned/replicated to have a backup of the network, which would be helpful in times of network failure.
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Quorum: Sending Private Transaction With Python

I am trying to experiment with GoQuorum and Python. I have read the documentation about how privateTransactions work and I am trying to perform one. Since Python's web3py does not support the ...
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1answer
19 views

ERC20 token transfer is not showing in receiver's balance

I have created 3 node (A, B, C) network in that I have deployed simple ERC20 token smart contract on node A. function balanceOf(address tokenOwner) public view returns (uint256) { return balances[...
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16 views

quorum-wizard Quickstart option is failing

quorum-wizard Quickstart option is failing with error. Downloading dependencies... Using cached quorum at: /Users/vivart/.quorum-wizard/bin/quorum/20.10.0/geth Using cached tessera at: /Users/vivart/....
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1answer
51 views

Deploy from Remix to Quorum using password? “authentication needed: password or unlock”

I can SSH into the box that is running Quorum: run geth with the flag --allow-insecure-unlock geth attach new-node-1/geth.ipc personal.unlockAccount(eth.accounts[0]) I'm interested in knowing if I ...
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1answer
20 views

Is the value of the privateFor param accesible in the contract?

Transaction params for quorum can contain a privateFor param { "jsonrpc":"2.0", "method":"eth_sendTransaction", "params":[ { ...
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1k views

MetaMask - Quorum - Network - Custom RPC - Could not fetch chain ID. Is your RPC URL correct?

Instructions from scratch https://docs.goquorum.consensys.net/en/latest/Tutorials/Creating-A-Network-From-Scratch/ genesis.json Directly from the tutorial: "chainId": 10, startnode1.sh #!/...
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How to send a transaction to Besu configured as a Free Gas Network

I have downloaded and configured Besu as a Free Gas Network (https://besu.hyperledger.org/en/stable/HowTo/Configure/FreeGas/ ). Creating transaction using Truffle works fine, but not in my application ...
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53 views

Error in doing private transactions for nodes on different VMs using quorum and tessera

I am pretty new to quorum/tessera. I have successfully tested a small POC with 3 quorum+tessera nodes on the same machine. Now, I am trying to do a similar POC with 4 nodes on different VMs. The nodes ...
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1answer
41 views

Access private transactions(payload or state) on a smart contract using tessera

I am pretty new to quorum/tessera and am trying to set up a small POC with 3 nodes. I followed the 7nodes setup example and similarly deployed 3 nodes on my system using Mysql as the database for ...
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59 views

Quorum vs Private network Ethereum blockchain

I want to know what are the main features of a private Ethereum blockchain: the used consensus algorithm, the transaction fees, the time needed to produce a new block, the throughput, etc. Does it ...
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29 views

Uncaught (in promise) Error: Returned error: oversized data when calling the set method for a very large cipher string

I am using a quorum 7 nodes example with IBFT genesis file. I have modified the maxCodeSizeConfig to 128KB (which is maximum). I have also increased the gas limit to 0x3B9AC9FFFFFF. But, when I am ...
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15 views

Error creating a IBFT nework in Quorum

I am following the link https://docs.goquorum.consensys.net/en/latest/Tutorials/Creating-A-Network-From-Scratch/ and getting stuck after I clone the istanbul-tool and hit make, it is giving me a make ...
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25 views

I am getting a error when trying to set up a local raft network

When I try to run the command geth attach $nodeName/geth.ipc It shows the following error 'Incorrect Usage. flag provided but not defined: -raft' I am not able to understand what went wrong exactly, ...
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79 views

quorum private transaction is giving error “Transaction has been reverted by the EVM”

In my project, I have created a 3 node quorum network using quorum-maker. I am calling my smart contract method from web3js. Public transactions are working fine but private transactions are always ...
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21 views

Can the primary node be fixed in Raft and IBFT?

I am doing an experiment to see the effect of a compromised primary node on the performance of Quorum for Raft and IBFT. Is there any way I can fix a node to be the minter or the primary node so that ...
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2answers
128 views

What is the difference between IBFT(Istanbul BFT) and PBFT?

I recently got to know about IBFT and Quorum and started studying on their consensus protocols. And what is the difference on IBFT and PBFT? Are they pretty much like the same and, when considering ...
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1answer
41 views

Attach to tessera node failing

Im installed quorum with tessera but when i need to attach to any node using command $ ./attach.sh 1 show error "Fatal: Unable to attach to remote geth: dial unix qdata/dd1/geth.ipc: connect: no ...
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35 views

Using privateFor in truffle test

Using truffle , I am able to deploy private smart contracts using privateFor clause. However, I am not able to use in truffle test. I get the following error. Is there a way we can use privateFor ? ...
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61 views

Quorum problem to find external node

I have tried several configurations without success. I am trying to connect two nodes there are in different network. Both are in a VM at google cloud, as you can see in the image below, one of them ...
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24 views

How to schedule a transaction to a Contract? [duplicate]

I have a simple getter-setter contract. I want to schedule transactions for a method of my contract on a particular date and time. Do we have a function to schedule transactions to a contract in ...
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38 views

Are the events raised in a private transaction in quorum also private?

I'm trying to understand the specifics of privacy in quorum transactions, specially regarding the events. Are the events raised in a private transaction in quorum also private? I can't find any ...
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61 views

Front-running in Quorum IBFT

Are pending transactions processed sequentially in IBFT? In a networks based on PoW you would usually pay higher gas price in order to get your transaction mined first. Is there a way to manipulate ...
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43 views

Uport for Quorum-based Dapp

I'm developing a donation platform based on the blockchain. I need to identify the beneficiary that can be an institution, an association, a hospital, a retirement home, a person, etc. I study the ...
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55 views

Chainlink services are not supporting the privateFor transactions in Quorum/Kaleido

We are exploring Kaleido and Chainlink for one of our use cases. What we have done: We have created a network of Quorum/Raft nodes. We had setup the chainlink service for the network. We have setup ...
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46 views

Pending transactions at the client machine, but minter is not minting a new block since there are no pending transactions

I am running Blockbench on Quorom Raft using smallbank workload: 4 minters and 4 clients. Following the logs, I found that sometimes 1 specific client (Client 4) has pending transactions but the ...
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40 views

What is the block number of the first block mined in a private blockchain network deployed on say Quorum?

I am working on POCs on Azure Blockchain Service. While working on quickstarts, I observed that while deploying my 'Hello Blockchain!' smart contract, the block number of the block mined was 34136. ...
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1answer
62 views

How to execute a private transaction in quorum

I am currently learning quorum. I was able to build two node environment by referring to "Creating a network from scratch" in the following quorum official link, and successed to attach node1 using ...
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1answer
120 views

Can an Erc-20 token that I create on my Quorum be integrated with any cryptocurrency exchange (for example Coinbase)?

I have setup my own quorum blockchain network. If I deploy an ERC20 token contract with a coin name (say ABC), will I be able to list the coin in exchanges ?
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45 views

Private transaction failing with Non-200 status code

I have a Quorum network running on Azure Blockchain service. Sending private messages to a particular public key is failing. It was working till last week. No code or configuration changes have been ...
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2answers
165 views

Web3js events “fromBlock: 0” doesnt work

I want to get events from block X. I have: quorum-v2.4.0 web3js 1.2.6 And I have my own smart contracts I want to listen for. So I have created listener for allEvents like this: const event = ...
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125 views

Unable to deploy contract on Private Quorum Network

We just built a new 3 node quorum network but we are unable to deploy any contract on it. Please find the below info: Quorum vesrsion: Geth Version: 1.8.18-stable Git Commit: ...
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1answer
28 views

What is the max number of Blocks which can be created in Quorum

I have nodes running from past few days, with almost 4100+ transactions successfully completed. When i try to interact with the contracts again to add/modify details it shows error Error when ...
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2answers
256 views

Quorum private transactions not private

I am struggling to enforce privacy using Quorum's privateFor option. I have provisioned a consortium in Azure blockchian service with 3 nodes. I deploy a smart contract from node2 privateFor node1 ...
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1answer
174 views

How to send a private transaction using Quorum

I'm trying to send a private transaction using Quorum geth, but eventually got an error : Error: ether value is not supported for private transactions at web3.js:3143:20 at web3.js:6347:15 ...
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24 views

Security implications on limiting the round change timeout of Istanbul BFT consensus algorithm?

I have a security-related question regarding the exponentially increasing timeout in the round change, which is used in the Istanbul Byzantine fault-tolerance consensus algorithm used by Quorum. ...
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2answers
343 views

How is authorization handled in smart contracts

I have deployed a Quorum network on Azure Block chain service to be used by specific invited members of a consortium. I have not yet explored the privacy features provided by Quorum on top of Ethereum....
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1answer
36 views

Fire transaction from contract

I have a contract holding a mapping like this: mapping (address => User) users. How can I get the contract to automatically fire a transaction/event when a certain condition is met? For example, ...
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1answer
141 views

Contract does not exist at address

I have setup a private Quorum network and successfully deployed contracts and executed contract functions using Visual Studio Code and remix. When i try to deploy the exact same contract manually ...
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85 views

Quorum Smart Contract Performance Azure Blockchain Serivce

I wonder that how I can improve smart contract performance in Quorum. Right now I have a smart contract which save supply chain information and we are using Azure Blockchain Service for Quorum. We ...
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1answer
128 views

Remix Browser and Quorum Local Node

When i try to deploy any contract using quorum local node in remix browser with solidity version higher than 0.5.0, the contract gets deployed but any transaction to interact (fetch / update) the ...
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30 views

Solidity Contract Length [duplicate]

What is the max length of solidity contract? I have been trying to deploy a contract of 328 lines of code on Remix Browser with a locally created Quorum Private Permissioned Node. I get the ...
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1answer
184 views

gas required exceeds allowance or always failing transaction in local permissioned Node

I am facing the some issue with gas but i do not have any modifiers in my contract. Even a simple setter-getter contract shows the following Error Error: gas required exceeds allowance or always ...
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1answer
106 views

Quorum Maker for recovery of blockchain data in secondary node

We are trying to setup multiple nodes in QUorum maker to make one node as a backup to be used in case the primary node fails for some reason. We are able to deploy our smart contract successfully but ...
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1answer
183 views

Multiple nodes setup in Quorum Network

Is there any documentation to state how can we have redundant nodes configured in Quorum network so that even if a single node goes down, the data in blockchain is still retrievable by the app? ...

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