Questions tagged [poa]
POA stands for proof of authority . This tag will be used for question related to POA/POA network
103
questions
0
votes
0answers
7 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 ...
2
votes
1answer
22 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 ...
1
vote
1answer
21 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 ...
1
vote
0answers
25 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
0answers
18 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
0answers
14 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 ...
1
vote
1answer
67 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,
"...
0
votes
4answers
326 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;
...
0
votes
0answers
34 views
How to limit queued transactions in terms of waiting time and number?
I am trying to limit queued transactions in terms of waiting time (using --txpool.lifetime ) and in terms of number (using --txpool.globalqueue) but nothing works,
I am using PoA with geth, I want to ...
1
vote
1answer
40 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 ...
0
votes
1answer
29 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 ...
0
votes
1answer
50 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 ...
0
votes
0answers
15 views
bootnode connectivity issue
I am trying to setup POA network and for that I am using bootnode.
but I am having difficulty with connection to bootnode.
i am using this command gives error.
bootnode -nodekey boot.key -verbosity ...
0
votes
2answers
163 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
...
0
votes
0answers
36 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 ...
0
votes
1answer
42 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-...
1
vote
1answer
32 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 ...
0
votes
0answers
33 views
Does uncle blocks in poa forks contains transactions?
Since that forks can happen in poa networks (I asked how to prevent forks here);
What does means ? is uncle blocks contains transactions or they are just empty blocks ?
1
vote
0answers
26 views
What is 'dangling vote' in the geth clique POA algorithm?
I am reading the code implementation for clique POA algorithm(consensus/clique), and encountered this line of comment in consensus/clique/snapshot.go:
// uncast removes a previously cast vote from ...
1
vote
1answer
58 views
How to prevent fork in poa network?
I discover that forks in poa network can happen!
I have 4 nodes (trusted nodes) I want to create a poa network with no forks,
is it possible ?
0
votes
0answers
28 views
How to obtain data from a private PoA Ethereum Network?
I want to fetch data from a private PoA ethereum network running on a local computer. The data will be used for anomaly detection.
I need contract interaction data (function calls etc.), to observe ...
0
votes
0answers
20 views
What are the risks to considered of PoA in production mod [Geth]?
We are using poa clique with period = 0, and we will pass to production soon, so what are the risques to considered in prod mod ? is there a best practices checklist?
0
votes
0answers
56 views
How Geth classify transaction as local or non-local? txpool validateTx skips gasPrice validation for local transactions
I see geth code skips the validation of the local transactions
https://github.com/ethereum/go-ethereum/blob/master/core/tx_pool.go#L528
// Drop non-local transactions under our own minimal accepted ...
2
votes
1answer
27 views
How use SSL between geth nodes communication?
I have a poa network contains 4 nodes, I want to secure the communication between those nodes, is it possible using SSL and reverse proxy ?
3
votes
0answers
38 views
What is the scalability limit for POA Ethereum (number of nodes)?
Tried to find any benchmarks what is the maximum number of nodes for Ethereum PoA network.
When does a network latency become crucial? Looking for any sources / empirical benchmarks.
0
votes
0answers
42 views
Geth stuck on “Head state missing, repairing chain”
Geth crashed on lack of disk space, and now is stuck on "Head state missing, repairing chain" on a POA chain.
Max verbosity doesn't give anything, nothing, nada, and because it has not recovered, ...
0
votes
0answers
145 views
Facing issue while setting up private ethereum POA :
Which folder to save the genesis specs into? (default = current)
Will create clique.json, clique-aleth.json, clique-harmony.json, clique-parity.json
genesis.json
INFO [06-20|15:29:21.189] Saved ...
0
votes
1answer
142 views
Parity POA Smart Contract Method Always Fails
I have set up a private POA Network according to the tutorial from the parity homepage. I have two nodes running on localhost:8540 and localhost:8541. I have connected MetaMask to my first node and am ...
0
votes
0answers
28 views
Send transactions from any address (account) to a private ethreum network (PoA)
I am trying to send a transaction to a private Ethereum network (PoA) using an arbitrary address. However, the network is not accepting transactions from that address. Are there any method to unlock ...
0
votes
0answers
23 views
When enabling Clique consensus, I get status 0x0 Transaction mined but execution failed
When enabling Clique consensus and try to deploy a contract using Remix, I obtain this error;
status: 0x0 Transaction mined but execution failed
Any idea?
FYI, I am creating a private network ...
0
votes
0answers
46 views
How to backup and restore txpool data?
I'm using Geth to create a PoA Clique based private blockchain. I'm currently facing this problem and I'm looking for ways to backup and restore txpool data.
From the problematic node, this is my ...
0
votes
0answers
30 views
Proof of Authority identification and verification?
Exactly what documents are asked for being a validator and how is the validator identity verified?
0
votes
1answer
24 views
Accounts with ether cannot execute transaction on private chain
According to Metamask my accounts have ether, one account can submit transactions and have them be executed by the network, the other two have their transactions left as Submitted transaction.
Note, ...
0
votes
0answers
103 views
Correct way to handle sent signed transaction on ethereum poa network
Hi I’m having issues with sending multiple transactions to an ethereum proof of authority node(network) on azure. To clarify what I mean. I created an api service, using expressjs and node. Its meant ...
3
votes
3answers
62 views
What would be optimal number of block confirmation for Ethereum PoA network?
There are answers related to the number of confirmations is considered secure in Ethereum.
@Waqar Lim
To sum up, it always depends on your application and the attached
value to consider which ...
0
votes
0answers
50 views
PoA chain not processing transaction
I am using Clique and have set period:0 in the genesis.json file.
When I migrate --reset there is no problem in sealing new blocks; but, when I submit a transaction from my frontend through metamask, ...
0
votes
0answers
104 views
PoA network not mining
I have set up my PoA network using Puppeth, my two nodes are peering. They are receiving transactions, I can tell that since eth.getBlock("pending").transactions.length > 0. eth.mining == true. But ...
3
votes
0answers
301 views
Header broke chain ancestry, Synchronisation failed, dropping peer & retrieved hash chain is invalid
System information
Geth version:
Geth
Version: 1.8.22-stable
Git Commit: 7fa3509e2eaf1a4ebc12344590e5699406690f15
Architecture: arm
Protocol Versions: [63 62]
Network Id: 1
Go Version: go1.11.5
...
1
vote
0answers
82 views
Is it possible to set miner reward on Geth clique?
I have a private network set up with ethereum & PoA clique consensus.
Using in geth client
miner.setEtherbase(eth.coinbase)
on miner nodes, doesn't seems to work.
Inspecting in block explorer ...
1
vote
1answer
167 views
How to set sealers in genesis block extradata for a Clique PoA network?
What is the format of the Clique PoA genesis extradata field to set up the sealers?
This is an example:
"extraData": "...
4
votes
0answers
123 views
Error trying to synchronize geth clique client after shutdown
I'm working with a private network using geth clique clients. Each time a node shut downs, (after a power cut, or just killing the geth process), if a try to put it to work again, the node can't ...
1
vote
0answers
27 views
Clique - too few transaction inside a limited block
i have got the problem that my private node doesn't put all transactions that would be possible inside a block.
Concret i am running a private poa node which should have a fixed blocksize. Therefore ...
1
vote
0answers
114 views
Difference of parity PoA between Validator Sets and Aura?
It seems there are two PoA consensus algorithms in parity PoA. What is the difference between Validator Sets and Aura?
2
votes
1answer
349 views
Is gas burned in a PoA network?
I read in another thread that since sealer nodes don't get rewards, the gas spent in the network is burned and doesn't go to anyone.
However to limit spam, there needs to be a non-zero gas price. Do ...
0
votes
1answer
175 views
POA chain: intrinsic gas too low, contract deployment
I'm trying to deploy my smart contract to a private proof of authority chain with geth, but i always get the following error message intrinsic gas too low
This is the JSON RPC request i'm sending. ...
0
votes
2answers
113 views
How to backup POA based ethereum private blockchain and restore it in a fresh new environment
Is there a way to backup the POA based ethereum private block-chain [created from microsoft azure POA template] and also restore it in a all new environment with out loosing any transactions & ...
0
votes
1answer
62 views
Configuring a new ethereum network, using geth and PoA as consensus
I am trying to create a PoA private network using geth but I didn't find a good guide lines especially with the PoA addition. I couldn't get a definition and examples of the genesis block ...
1
vote
1answer
261 views
Clique PoA Private Blockchain: Need Suggestion for Block Gas Target and Block Gas Limit
I'm following this article to create my own PoA private blockchain.
Now I'm stucked at this section after number 13:
I've checked the Puppeth source code and Geth CLI docs, but I'm still not quite ...
2
votes
0answers
376 views
Puppeth: No ethstats server configured
Update
This is an issue with Docker Compose >= 1.23.0 and I've raised this in the go-ethereum GitHub issues tracker.
I'm following this guide to create my own private blockchain using PoA consensus.
...
2
votes
0answers
70 views
PoA throughput with multiple nodes
Will it be faster for my system, in terms of number of transactions per second, if my network has a lot of nodes?
Does the number of nodes in PoA is related to the throughput?
Particularly I am ...
