Questions tagged [quorum]

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

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The EVM throws an error “invalid opcode 0x1c”

I have written a simple smart contract that allows to store a string, and I'am trying to use go-ethereum(which is similar to web3j). When I execute a transaction, I have this error VM returned ...
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30 views

How to get rid of inactive nodes in Geth

I am setting up a quorum network with Quorum-maker, which uses Geth. It is running at the moment, with three alive nodes. However, earlier I had attempted to create two other nodes, which failed. I ...
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Metamask transactions keep stack at the txpool of a Quorum Private Network

System information Geth version: 1.7.2-stable-0905eda4 OS & Version: Ubuntu 16.04 Branch, Commit Hash or Release: HEAD detached at v2.2.1 Actual behaviour and Steps to reproduce the behaviour ...
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web3.eth.sendSignedTransaction from address is different from Signer's address

I'm signing transactions using an HSM and when using Web3js to send the signed transaction, the from property on the receipt shows an address that's: Different every time a sent signed transactions ...
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How many nodes do I need in a Quorum Private Blockchain?

I want to deploy a private blockchain using Quorum on Azure, create some ERC721 Tokens and send them various accounts inside the Private Blockchain. How many nodes do I need for a Private Blockchain ...
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which port I use when I want to connect remix to my local quorum network?

I want to deploy a smart contract on my local network. I executed a local node via PRIVATE_CONFIG=ignore nohup geth --datadir ./Node1/new- node-1 --nodiscover --verbosity 5 --networkid ...
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Error while deploying smart contract (quorum-examples tutorial by truffle)

:~workspace/myproject$truffle migrate --reset Compiling your contracts... Everything is up to date, there is nothing to compile. Running migration: 1_initial_migration.js Replacing Migrations... ...
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Why is zether needed in Quorum if transactions are private between nodes?

As you may know JPMorgan has released zether which allows to make anonymous transactions in Quorum using zkp technology. But I have a question regarding why Quorum needs it. Since transactions ...
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Can I run a javascript file using geth attach?

I want to automatize one thing. Aftert installing the Quorum nodes, I have to run: docker exec -it quorum_node1_1 geth attach /qdata/dd/geth.ipc Then I am pasting the JS code But I want to ...
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how much structure variable does solidity support? [duplicate]

Error: "UnimplementedFeatureError: Variable inaccessible, too deep inside stack" code: contract create{ struct s{ string s1; string s2; string s3; string s4; ...
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Quorum 7nodes example unable to finish simplestorage migration using privateFor

I'm following this example: truffle quorum example I created a cluster using docker-compose and all the nodes are up and running but when I run the truffle migrate command the migration doesn't end ...
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Quorum how to decode result returned by eth_getQuorumPayload api?

I've read the post How to get decrypted transaction data in quorum? I followed the api document and got the result by calling eth_getQuorumPayload curl -H "Content-Type: application/json" -X POST ...
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Quorum Can a non permissioned node change the states of private contract if the node knows contract addr and ABI?

I have ran the quorum-example, deploying a private contract. https://github.com/jpmorganchase/quorum-examples/tree/master/examples/7nodes I followed the commands written in README. However, I'm quite ...
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TC failures observed for Quorum-2.2.3

2 TCs are failing on Big endian system, seems the issue is with the byte ordering only. 1) ethereum/go-ethereum/core/bloombits 2) ethereum/go-ethereum/swarm/storage/feed Can some one please comment ...
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Is it possible to modify privateFor addreses in a private Smart Contract (Quorum)?

I know how a private smart contract works providing a list of accepted addreses to privateFor property, but what if I want to disable (or enable) any address visibility? Should I deploy a new Smart ...
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69 views

Quorum deploy with Web3j timeout

SCENARIO: I have the following code: final String hostUrl = this.deployerProperties.getProperty("quorum.host.url"); final String hostPort = this.deployerProperties.getProperty("quorum.host.port"); ...
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How to show partial information on private transaction?

I want to achieve the following requirement in quorum blockchain. 1) Participant A sells a red asset to Participant B for 100 dollars. 2) Participant B paints the asset blue. 3) ...
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quorum-maker-no web UI is exposing on any host ports after creating nodes

Im trying to deploy contract using quorum-maker, I've followed every step as mentioned in wiki, but still not able to connect web UI and have no idea where Web app is deployed(in wiki. http://10.50.0....
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Can Qorum Blockchain supports partail transaction encryption?

My use case is that we need to protect sensitive data in the transaction in blockchain. But we want to open other data in the same transaction to the public, Can Quorum support the above mentioned ...
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70 views

deploying simple contract on quorum 7nodes example

I am trying to deploy contract with privateFor tag in migration and for set function same as shown in truffle quorum 7node example. started nodes with these commands ./raft-init.sh ./raft-start.sh ...
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Invalid Sender when Using Quorum

I followed this tutorial (https://github.com/jpmorganchase/quorum/wiki/From-Scratch) to start up Quorum with 4 nodes using istanbul consensus. The nodes can connect and blocks are being generated but ...
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Quorum blockchain transactions visibility

I am wondering if the content (transaction) of the consortium blockchain or Quorum blockchain can be visible only for the validators. In other words, the registered users (who can access the nodes) ...
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How to set up Quorum Blockchain?

I have read a lot about Quorum blockchain. My goal is to run and test it. I have found many articles. Could anyone suggest me good start-up articles for setting-up the Quorum on a number of nodes and ...
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Deploying Contract with Quorum Web3j response: Non-200 status code

SCENARIO: I have the following code: final String hostUrl = this.deployerProperties.getProperty("quorum.host.url"); final String hostPort = this.deployerProperties.getProperty("quorum.host.port"); ...
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How are new users authenticated into Quorum network

I could find from online readings that Quorum has a Network Manager component that controls nodes access to network to created permissioned network of nodes. But, I couldn't see explanation on how ...
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Issue calling one contract from another using Quorum

I'm using truffle and running locally with 4 quorum nodes, trying to call another contract's function, but keep getting 0 in return instead of the expected value the I get once calling the contract ...
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Are private variant of Ethereum or any other blockchain just a glorified distributed database?

Are private variant of Ethereum or any other private blockchain solution just a glorified distributed database? Other than the fact that the data structure is cryptographically made immutable through ...
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Quorum Minimum Number of Nodes for Raft Consensus and Istanbul BFT

A Quorum Raft cluster of 3 nodes can tolerate a single node failure, while a Quorum cluster of 5 can tolerate 2 node failures. What is the equivalent if one uses Istanbul BFT? Nathan Aw
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Quorum Tessera Implementation in Go

as Quorum and Ethereum are developed in Go, would like to understand why Tessera, the new Quorum transaction manager to replace Constellation, is written in Java instead of Go? Thank you. Nathan Aw
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How to get decrypted transaction data in quorum?

On Quorum_Node1 I am sending a transaction with privateFor: parameter as follows: eth.sendTransaction({from: eth.accounts[0], to: "0xca84356...9a3d0ccf92b8e", data: web3.toHex('sample message for ...
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121 views

Getting Fatal: Error starting protocol stack: Genesis not found in chain

I am getting the following error in one of the nodes, I have a quorum network running. Fatal: Error starting protocol stack: Genesis not found in chain DEBUG[02-19|08:37:08] FS scan times ...
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Difference between Recursive Linear Prefix or Recursive Length Prefix? Vs Google Protocol Buffer (Protobuf)

Like to know what is the difference between Recursive Linear Prefix and Recursive Length Prefix? I have seen both around Are there they same? Or different? Also would like to know the reason why RLP ...
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Quorum Tessera Private/Public Keys vs Quorum (Ethereum) Keystore - Difference and Keys Management

Understand that Quorum Tessera is for encryption, decryption, and distribution of private transactions while Quorum Keystore is for normal transaction signing. Can both be collapsed into one set of ...
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What are the Minimum Requirements for a Quroum node?

I am planning to run a Quorum (Ethereum fork) blockchain on my business. I was wondering if quorum node will run on a Raspberry Pi 3 Model B+. Raspberri Specs: Broadcom BCM2837B0, Cortex-A53 (ARMv8)...
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Quorum node address

In the Node class of the Quorum Web3j. The String address what is? package org.web3j.quorum; import java.util.List; /** * Quorum node configuration class. */ public class Node { private final ...
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Public smart contract that calls Private contract API

In a private blockchain (e.g, quorum), assume that I have a peer X and peer Y. X has a private smart contract (A) and Y has a public smart contract B. Assume that A provides an API for Y in order to ...
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What are the differences between Monax/Hyperledger Burrow and Quorum?

Are there any significant differences between these protocols? Thank you for answering.
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Ethereum/Quorum Pluggable Consensus with Algorand Byzantine Agreement Protocol?

Can Quorum and Ethereum be possibly configured/modified to use Algorand Byzantine Agreement Protocol?
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Quorum & web3j: Transaction has failed with status: 0x0. Gas used: 0. (not-enough gas?)

I'm doing some play & test with Quorum. I'm using example 7nodes with docker. The network is up and my simple smart contract is deployed with a set and a get function. When I call the set function ...
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truffle-contract: Contract has not been deployed to detected network (network/artifact mismatch)

I am running a private network and would like to use truffle-contract to interact with the contracts. Unfortunately it gives me this error: Error: Contract has not been deployed to detected network (...
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truffle-contract error: Number can only safely store up to 53 bits

I am using truffle-contract with a local quorum node and try to execute a smart contract method, but getting this error: Error: Number can only safely store up to 53 bits That's the way I do it: ...
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How to read data from external files in Quorum Blockchain?

I have a use case where we have implemented Quorum Blockchain using AWS. The smart contract was written in Solidity. Initially we randomized the valued by coding in Smart Contract however we now want ...
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How can a peer request another peer to invoke a function from his private contract

I build a permissioned network using Quorum, I have a peerA which has a private smart contract, another peerB that cannot invoke functions of the smart contract as it is private So, can peerB send ...
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138 views

Quorum Raft: Is the leader validates each transactions in the block before broadcasting it?

I read about how the raft consensus works in Quorum to reach consensus and broadcast blocks (https://github.com/jpmorganchase/quorum/blob/master/docs/raft.md). I don't know if the following is correct ...
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`etherlime deploy` fails with Error: invalid sender

I am trying to deploy a contract with etherlime to a private permissioned Quorum network: etherlime init --> OK etherlime compile --> OK etherlime deploy --> Error Error: Compilation ...
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truffle migration fails, but initial migration was mined

I am trying to deploy this contract on a private permissioned Quorum network. The migration fails on the 1_initial_migration process. If I try to repeat the process with: sudo truffle migrate --...
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How to `truffle migrate` to private permissioned network?

I am running a private permissioned network and would like to use Truffle v5.0.1 for deployment. I use it according to the documentation: Compile my project with truffle compile so that the ./build ...
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70 views

Quorum: permissioned-nodes.js and static-nodes.js

How do I proper use permissioned-nodes.js? According to this information: https://github.com/jpmorganchase/quorum/wiki/Security If the --permissioned flag is set, the node looks for a file named &...
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Quorum transaction not mined and no address

I am running a private Quorum chain consisting of 3 nodes with raft consensus. When I deploy a contract to the chain via web3 I get returned a hash and can then look up the transaction with the local ...
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80 views

tm.ipc: no such file or directory (socket file to use for the private API / IPC)

I am following this tutorial to setup a Quorum cluster: https://medium.com/@shizekun/how-to-set-up-a-quorum-private-chain-with-raft-consensus-and-dynamic-membership-bf826f3927e5 But unfortunately I ...