Questions tagged [poa]

POA stands for proof of authority . This tag will be used for question related to POA/POA network

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Clique POA Signed recently must wait for others

In poa private ethereum network I have 2 nodes i mentioned the 1st node as a validator in genesis file after sometimes I'm adding the second account as a validator or signer in geth console using ...
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180 views

Error starting protocol stack: listen tcp 127.0.0.1:8551

i had problem to trying to connect two nodes with one bootnode. when run this code in terminal geth --networkid 2400 --datadir ./data --bootnodes enode://{hash}@127.0.0.1:0?discport=30301 --port 30304 ...
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Private Clique Chains and London Fork

We are running a Clique (PoA) private chain, and all Eth was issued on block 0. We are contemplating the option to schedule the London hard fork on our chain but there's of course the issue of burning ...
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1 answer
42 views

how to setup up Gas Price POA network

I have setup POA Network with clique, 5 Node with Public RPC, everything working fine, but i would like to setup Gas Fee to 25 GWEI automatically Metamask pick this estimation, by Default POA has 1 ...
2 votes
1 answer
17 views

Using Hyperledger QBFT suitable for public chains?

I am thing process of creating my own public EVM network, i found the best approach available would be using QBFT on HyperLedger Besu as it is Proof Of Authority and secure for production uses. But ...
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1 answer
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I can't figure out the reason for this error

There are no problems with the nodes. but i keep getting this warning What exactly is the reason for this? err="signed recently, must wait for others"
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0 answers
42 views

Open ports for sealers in POA

Should sealers have open TCP/UDP ports that allow other nodes to connect when running a clique blockchain? Edit: In other words: Is it mandatory for sealer nodes to accept incoming connections on the ...
1 vote
0 answers
46 views

What settings should a private PoA blockchain have to be free to use? ( No ether in use )

I am a total noob in creating blockchains, and I am trying to make one using geth with PoA. I want to make a PoA private blockchain where transactions and smart contracts ( usage and deployments ) are ...
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0 answers
23 views

go-eth Blockchain full sync mode

Is there anyway to force an eth node to do full sync on an existing private POA chain? I recently set syncmode to full but seems like geth does not start replaying the data since genesis. Is there any ...
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0 answers
13 views

Quadratic funding understand

I have hard time realize how, let's say a DAO organization with the help of quadratic funding can use more money than invested in the first place. I understand the whole principle that more people is ...
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55 views

PoA Geth Network - Change % required to add a new sealer node. Is it possible?

I have been researching about how to add sealer nodes to a network with Proof of Authority and Cliqué algorithm using the Geth client. But I can't find information on how to change the % needed to ...
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Proof of authority Add or Remove Validators without forking

I am thinking about doing a project in Ethereum (currently open to any clients). How can I add or remove validators without hard fork? If a wallet (sender) is not a validator, can it send Ether to ...
1 vote
1 answer
66 views

How Ethereum 2.0 and sharding will apply to private Ethereum with PoA consensus (Clique)?

We're about to run the private Ethereum PoA chain based on Clique and thinking how would we support it for ages. Hence we're wondering: Whether Ethereum 2.0 updates (London, etc) are even applicable ...
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1 answer
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Poa question erc token

I want to ask a question in regards to poa Consensus. If I was looking to fork ethereum and setup my own side ledger using poa and creating/erc specific tokens on this chain..is there a way where I ...
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51 views

Too many chain reorgs in a proof of authority (clique) based private blockchain

I'm studying on Proof of Authority (Clique) based blockchains. I've setup private networks with 1 validator nodes few times, things really go well in 1 validator but when I add 2 / 3 validators in the ...
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1 answer
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What could be the problem if there is only one sealer in private network with PoA Consensus?

I have a private network created using geth and I want to use it as a decentralized database. Currently, I'm testing the network using 3 nodes which one of the nodes as a validator (hence only one ...
3 votes
1 answer
393 views

Does Geth Clique will get affected when difficulty increases to its maximum?

I have started own private network with clique consensus algorithm in GETH. Regardless of miners now sealer will do the job and I have period:5. Difficulty is set 0 initially but over time it is going ...
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1 vote
0 answers
145 views

How do you hard-fork a Clique PoA chain to use new validators?

Imagine you've got a running PoA chain using Clique PoA with Geth. If everything is running normally, you can propose additions and removals of validators and the existing validators will vote on the ...
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0 votes
1 answer
99 views

Remove ether from PoA private network

I try to setup a private network containing three nodes (bootnode, sealer, transaction node with rpc) and PoA. So far so good. The thing is I don't want to have any ether nor do I want to pay any gas ...
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1 vote
0 answers
69 views

Private Ethereum PoA error: "out of memory"

I'm working with multi node setup on Ethereum private chain PoA. We have all three validator nodes. blockchain ├── genesis.json ├── node1 │ ├── geth │ ├── keystore │ ├── ...
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132 views

How to provide balance to validator nodes after blockchain creation private blockchain POA

I'm working with a private Ethereum blockchain PoA with three validator nodes. I have initially added three wallet addresses to get some free ethers. However, when I checked the balance of one of the ...
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1 vote
0 answers
58 views

can a running blockchain fork from PoW to PoA?

can a running public blockchain hard fork from PoW to PoA?
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1 vote
1 answer
439 views

Geth v1.9.24 - POA - no sealing with period 0 - "Sealing paused, waiting for transactions"

I have a private clique network with geth v1.9.24. 1 sealer and 1 node. With period=0 there is no sealing happening, all transactions go to txpool as pending, and logs show "Sealing paused, ...
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0 answers
164 views

How to identify why my transaction goes to pool, and how to process them?

I'm working with POA blockchain with three nodes. When I send transaction using geth console, sometimes my transaction goes to txpool and never clear from there. Is there any way using that we can see ...
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1 vote
0 answers
107 views

Geth-Clique PoA

In the PoA consensus algorithm Clique, when a sealer broadcasts a block for a given height of the blockchain, do the other sealers check the validity of the transactions inside the received sealed ...
1 vote
0 answers
18 views

Geth Puppeth set Seaing Profit to 0

I am creating a private blockchain network using GoEthereum. I am using Clique (to get the PoA protocol). Since I have predefined sealers/miners, I do not want to set any mining profit for them. But ...
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1 vote
0 answers
134 views

Private PoA deployment leads to 'invalid gas used' error

I'm trying to deploy a contract to a private clique chain running on two devices (laptop and raspi). Deploying the contract when running multiple nodes on a single device worked fine as per usual, ...
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1 vote
1 answer
636 views

Geth keeps changing coinbase / miner account and stops working. (POA Network)

I have set up a Geth POA network of 2 nodes on different cloud instances. Network was running good for 2 months but now suddenly it's getting connections from unknown peers and mining stops working. ...
1 vote
0 answers
175 views

Geth network stopped mining

On my POA network there are 5 nodes/miners but suddenly all nodes stopped mining and giving this in console "INFO [09-05|08:50:16.267] Looking for peers peercount=4 tried=4 static=0". We ...
1 vote
1 answer
709 views

POA: Geth node (miner) automatically stops after 3-4 hours which results in primary node pausing and looking for peers

I have set up 2 Geth nodes with POA on different machines. After starting bootnode and starting Geth nodes, they sync well and starts mining alternately. If I manually stop a node, other node keeps ...
1 vote
1 answer
217 views

geth mining not working without --allow-insecure-unlock (geth 1.9.16-stable-ea3b00ad)

I am running a private ethereum blockchain with POA geth --port 3000 --networkid 42 --datadir=./blkchain --maxpeers=5 --rpc --rpcport 8543 --rpcaddr 127.0.0.1 --rpccorsdomain "*" --rpcapi &...
0 votes
1 answer
142 views

Why array.pop() doesn't work on my private network?

I have deployed a PoA network using Hyperledger Besu and I'm using Remix in order to code a very simple smart contract. Here is the smart contract code: // SPDX-License-Identifier: MIT pragma solidity ...
1 vote
0 answers
19 views

Cannot connect to Azure PoA Websocket

Just like question Connecting to blockchain on azure using web3.js and websocket, I need to use websockets to capture events. I have gotten my http and websocket endpoints from the deployment outputs ...
0 votes
1 answer
119 views

How to add member NOT peer node to private ethereum network

I followed this parity-poa tutorial to build a private POA ethereum network in local. I want to add member node to this network . so i run parity client with below configuration toml file: [parity] ...
0 votes
1 answer
62 views

Geth Providing error on its directory path

I have initilize my node1 with my genesis file which worked fine command is 'geth --datadir node1/ init genesis.json'. But with same geth when I try to run this command geth --datadir node1/ --...
1 vote
1 answer
169 views

PoA network confusion resolving using geth

I am planning to move from PoW to PoA consensus (clique) using geth. But I am confused of some of the topics - 1) Empty blocks are created periodically? What is the size of an empty block? 2) Is it ...
3 votes
1 answer
119 views

geth clique block gas limit

I have setup new PoA network with default block gas limit to 3 billions. The network starts with configured limit. However, overtime the block gas limit reduce down to 8 millions. Is there a way to ...
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3 votes
1 answer
1k views

bootstrap node vs cmd/bootnode

I am using bootnode as a starting/meeting point for my private POA/clique network. When I start it since one of the latest versions it says: fmt.Println("Note: you're using cmd/bootnode, a developer ...
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1 vote
0 answers
120 views

Migration from PoW to PoA Clique on geth

After reading chapter "Repurposing header fields for signing and voting" at https://eips.ethereum.org/EIPS/eip-225 I've understood the nonce field of blocks in PoW consensus blockchain is reused for ...
2 votes
0 answers
37 views

burning or collecting transaction fees on PoA

In Parity PoA, how would you burn or divert all transaction fees to a predefined contract? Would it be easier in another PoA chain?
2 votes
0 answers
67 views

Calculated blockhash of PoA block mismatches with actual blockhash returned by RPC

I set up a Demo PoA chain using Parity Etheruem. I sent some transactions to it and it started producing blocks. A block on my demo PoA chain was generated with block hash ...
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2 votes
1 answer
390 views

raw transactions to send ERC20 token fails on private network(POA)

I am trying to transfer ERC20 tokens on private ethereum network(POA) Transaction flow: raw tx object creation on backend. { "gasLimit": 37000, "gasPrice": 4000000000, "...
2 votes
5 answers
17k views

Gas estimation failed - remix

I am trying to figure out what is wrong with the following code as it does deploy successfully on remix. pragma solidity ^0.5.11; contract MyContract { // Storage address contractOwner; ...
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2 votes
1 answer
238 views

Blocktime zero (period:0) with clique in permissioned blockchain

I am considering to set the blocktime to zero (clique.period:0) in a permissioned private blockchain with known but untrusted nodes. The reason to do this is having a minimum transaction process ...
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0 votes
1 answer
103 views

Parity proof of authority aura, how to detect misbehaviour?

I'm having trouble finding the answer looking at the Parity POA aura examples, the documentation on Parity Validator Sets, plus the Kovan validator set contract solidity source code. I see that you ...
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3 votes
2 answers
915 views

Cannot deploy new contracts with pending transactions (Ropsten)

I have a very strange and annoying problem. I am trying to deploy a new contract however it just keeps cycling. I have the same problem on the POA testnet and on Ropsten. Please see below: I have ...
1 vote
2 answers
2k views

Geth-Clique: 2 sealer POA network - sealer nodes not mining - Signed recently, must wait for others - stuck

I have the following setup for a geth clique POA network, however blocks are not mined. The network consists of two separated nodes which are both acting as an active sealer. Sealer 1 Start Command ...
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0 votes
0 answers
211 views

Making difficulty static - Geth

I made a setup for a private PoA network with geth. Everything works fine, regarding mining, making transactions, connecting through http and websockets. Now I need to optimize transaction time, I ...
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0 votes
1 answer
157 views

Is it possible to deploy the ERC721 token on private network for free?

I created a private network with 3 instances (one controller, 2 nodes) based on PoA on AWS. And I checked if my custom ERC721token is deployable by using Ropspan test network. so I have a working-...
2 votes
1 answer
59 views

How does Enterprise Ethereum manage authentication?

I`m sorry for my bad english. I am struggling between enterprise ethereum and hyperledger fabric. I saw in the docs that Hyperledger fabric manages parts of certification and accreditation. How is ...
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