2022 Developer Survey is open! Take survey.

Questions tagged [ibft]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0 votes
0 answers
22 views

Block propagation delay

I have some doubts related to block propagation time. In a network built with Hyperledger Besu, I have 4 AWS machines, 3 in Paris and 1 more in Oregon. The block propagation times are crazy, like 2 ...
user avatar
0 votes
0 answers
7 views

How BFT resistant is Ethereum?

How BFT resistant is Ethereum? And could anyone explain why this is important and if it will change from PoW to PoS? Thanks!
user avatar
  • 1
0 votes
0 answers
6 views

description fields on Alethio block explorer

I'm using Alethio block explorer on an IBFT2 based chain I would like to know the meaning of the validators field, will this field have all the addresses of the validators or just the addresses of the ...
user avatar
1 vote
0 answers
24 views

Order of recreation and proposing of block

With regard to this post, I would like to know what happens if the proposing and recreation of a block happens at the same time. For instance, if we keep the default recommit interval of 3s and set ...
user avatar
  • 11
0 votes
0 answers
16 views

Relationship among total and bizantine number of nodes in IBFT2

According to [1]: In IBFT 2.0 networks, approved accounts, known as validators, validate transactions and blocks. Validators take turns to create the next block. Before inserting the block onto the ...
user avatar
1 vote
1 answer
49 views

Ethereum protocol - description fields on Alethio block explorer

I am using Alethio block explorer in an IBFT2 based chain. I am trying to understand some fields there. Does anyone know what they mean? Are the COMMITSEALS the signature of the validators? What is ...
user avatar
2 votes
0 answers
77 views

Is there any way to configure hyperledger besu to mine blocks only when there are transactions?

I have been following this tutorial: https://besu.hyperledger.org/en/stable/Tutorials/Private-Network/Create-IBFT-Network/ Everything works fine, however I can see that every 2 seconds new block is ...
user avatar
  • 171
2 votes
1 answer
72 views

Load testing Besu + IBFT2?

The context: I have a simple app that that consults historic of events frequently. It works fine on my development machine, with just a few thousands blocks. I am not sure if it will continue to work ...
user avatar
  • 516
2 votes
2 answers
677 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 ...
user avatar
0 votes
1 answer
99 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 ...
user avatar
3 votes
1 answer
400 views

Mining a private transaction in quorum

I was going through the quorum docs and got stuck on how private transactions are mined? When two nodes, say Node A and Node B do a private transaction between themselves. Which node then mines the ...
user avatar
0 votes
1 answer
958 views

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?
user avatar
  • 1,845
1 vote
2 answers
1k views

Quorum IBFT - PBFT - BFT - 3F + 1 / 3M + 1

Understand that Quorum supports IBFT. Am trying to decide what is the suitable number of nodes to setup up to support X number of byzantine nodes. Using PBFT formula, 3F + 1, I am trying to come out ...
user avatar
  • 1,845
2 votes
2 answers
1k views

In Quorum, between Raft and Istanbul BFT (IBFT) consensus, which has a better (faster) block confirmation time? Assuming Ceteris Paribus

In Quorum, to help decide between Raft and Istanbul BFT (IBFT) consensus, which has a better (faster) block confirmation time? Assuming Ceteris Paribus.
user avatar
  • 1,845
0 votes
2 answers
360 views

quorum istanbul byzantine fault tolerance (ibft) consensus nodes count for failover - recommended configuration

In Quorum, specifically for istanbul byzantine fault tolerance (ibft) consensus algorithm, what is the ideal node count for failover? i.e., recommended configuration? Nathan Aw (Singapore)
user avatar
  • 1,845