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Questions tagged [nodes]

A node is a machine which is running an Ethereum client. It synchronises the blockchain with other nodes in the network, so that they all have the same definitive copy. A node is needed to send and receive ether and to executive DApps.

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How does bootnode peering work in ethereum?

I am quite unsure about the peering tendency of the geth peers My question is about geth bootnodes not peering properly - however, instead of leaving the question as it is here, i would like to ...
Muhammad Yasir's user avatar
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What are the types of merkle patricia nodes?

Another question related to a popular paper that always appears at the top of google search. Related question: To what extent has 2018 mLSM paper influenced ethereum data structure? How is the ...
Pavel Fedotov's user avatar
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1 answer
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To what extent categorization: full node, light node and fast node is relevant today?

Found such categorization from "mLSM: Making Authenticated Storage Faster in Ethereum" paper https://www.usenix.org/system/files/conference/hotstorage18/hotstorage18-paper-raju.pdf. There ...
Pavel Fedotov's user avatar
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27 views

Go-Ethereum/core-geth: Consensus engine interface, on changing coinbase via Prepare method

I assumed the coinbase could be altered from Prepare, so that transaction fees could be paid out to a custom coinbase. But, it seems like worker.go simply ignores the header.Coinbase after calling ...
BipedalJoe's user avatar
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Cant unlock account and find a Txs in the geth through clef(POA private chain in Centos 7)

about the question(POA private ) 1.Cant not using clef's personal.unlockAccount method to unlock the account in the geth,but can use the personal.listWallets method to list the accounts 2.to use the ...
afHu's user avatar
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2 votes
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24 views

Node synchronization stopped

I'm trying to deploy the Sepolia RPС node, as if everything was fine, but the synchronization stopped. Besu version 24.3.3 Configuration: Network: Sepolia Network Id: 11155111 Data storage: Bonsai ...
Pavlo Tsisar's user avatar
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67 views

Informations about DApp, Node and much more

I wanted to ask you for an advice, because I am a begginer regardin DApss/Nodes, etc. Your help would me a lot appreciated and thank you in advance for it. In my Trust Wallet, at "Discover" (...
Chris Schneider's user avatar
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58 views

How to access transaction data in Alastria networks?

I have read an article about a personal data leak on Alastria networks: https://medium.com/@4k-research/personal-data-leak-alastria-blockchain-ecosystem-9366544d1cd9. Following the article idea I have ...
jander_62's user avatar
1 vote
2 answers
65 views

Ganache alternative in docker

After the Sunset of Truffle and Ganache . Are they already some alternative to the Ganache docker image https://hub.docker.com/r/trufflesuite/ganache with enabled persistent data for local development ...
Majd TL's user avatar
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Can precompiles be written in Solidity/ Yul?

Based on the answers to this other question, I understand that there isn't a standard programming language in which precompiles are written in. The standard EVM precompiles are implemented in the ...
Paul Razvan Berg's user avatar
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How are ethereum transaction sent over the wire in Network to peers

I understand how ethereum transactions are signed and proapagated. But while comparing the output of rawTransaction with the wireshark capture of Etherum EOA transaction, I could not map the ...
Richa's user avatar
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How to retrieve a validator Fields and Index from the Beacon Chain?

I'm working on a stacking / restacking project where I need to call that function: function verifyWithdrawalCredentials( uint64 oracleTimestamp, BeaconChainProofs.StateRootProof calldata ...
ASANSON's user avatar
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0 votes
2 answers
39 views

Does Chainlink Have a Public Blockchain?

In Chainlink's documentation and tutorials, running a Chainlink node is explained along with brief mentions of the OCR protocol for node communication. When I run a Chainlink node myself, does it ...
Ehsan's user avatar
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Disk database cleanup during reorg, where in Go-Ethereum (or other node codebase) does that happen?

I'm curious about how the discarded "oldchain" during reorg also has its data cleaned up from the disk drive database. I'm unable to see anything about that in the reorg method in core/...
BipedalJoe's user avatar
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16 views

Possible to use CallContract during validation (on block not yet included in blockchain)?

I'm building a consensus engine. Already built a prototype of it, and now interested in improving it (mostly simplifying the implementation so it fits better with existing Ethereum codebase with least ...
BipedalJoe's user avatar
1 vote
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69 views

Every couple of hours, my node desyncs

For some reason, every couple of hours when I check on my node, my Geth log files show 'Imported new potential chain segment,' and then once synced, it goes back to normal for a couple of hours. The ...
Creterine's user avatar
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2 answers
39 views

To node operators: Other than as a fun side project - are there any tangible benefits to running your own node?

As title says - thinking of running my own node on some dedicated ARM hardware I have. I've read the docs and like the idea of non-reliance on 3rd party node operators to access the network. To those ...
Awry5827's user avatar
1 vote
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34 views

Is it possible to have an ethereum node that only listens for events?

Scenario: A DApp requires specific events from ethereum or a sidechain, DApp does not afford any miss or delay. There is no reliable public RPC, so DApp developers decided to run a node. Question: Is ...
user129596's user avatar
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1 answer
44 views

Setting up a Chainlink node in a Docker container on MacOS (Documentation Issue)

I've gotten most of the way through the LINK docs on how to build a chainlink node in container and the only issue I have not been able to trouble shoot is this error I keep getting in my ZSH terminal ...
Jack Vafi's user avatar
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1 answer
140 views

Is it possible to distinguish full nodes vs archive nodes without using RPC calls?

I was wondering if there are ways to distinguish Ethereum full vs archive nodes without using RPC calls to ask for old state information. This is helpful because lots of nodes have RPC disabled so you ...
alemaz98's user avatar
2 votes
2 answers
107 views

Need an advice about a stable RPC Provider (doesn't have to be free) [duplicate]

Need a full ETh Node, please share a good RPC provider with stable connection and not enou
Joan Williams 's user avatar
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1 answer
69 views

How much ram is needed to run an ethereum node?

Furthermore, what does running an ethereum node mean post-merge? Running an execution node, consensus node, or both, and in what combinations, do the execution and consensus nodes talk to each other ...
Danny B's user avatar
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2 answers
114 views

Facing issues while running Chainlink node on XRPL EVM Sidechain network

Basically, I’m trying to run a Chainlink node on XRPL EVM Sidechain network. Here's the content of the config.toml file that I'm using: [Log] Level = 'warn' [WebServer] AllowOrigins = '\*' ...
SYED ASAD KAZMI's user avatar
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140 views

Running beacon node using prysm

I was running Running beacon node using prysm with the following command: ~/Documents/microverse/BlockChain\ and\ Web3/mynode/sepolia/consensus/prysm/prysm.sh beacon-chain --execution-endpoint=http://...
Henok Mekonnen Mossissa's user avatar
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61 views

Creating address using Clef JSON-RPC without manual Confirmation on Clef

I am trying to create a new account using clef on my ETH node. I am using clef JSON-RPC {"id": 1, "jsonrpc": "2.0", "method": "account_new", "...
michaelaberra's user avatar
2 votes
0 answers
49 views

Oracles supporting Polygon Zkevm

Are there any oracles present at the moment supporting smart contracts to securely retrieve data from conventional APIs (not data feeds) through HTTP(S) GET and POST calls. We have looked into Witnet, ...
user1912027's user avatar
1 vote
0 answers
153 views

($10 ETH Bounty) Base Chain - My submitted transaction is always 2 blocks behind the current block

For some reason whenever I submit my transaction it is always included 2 or more blocks behind the current block. There's an address that always has their transaction included in the same block as the ...
shlx's user avatar
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2 votes
2 answers
298 views

Replaying transactions in hardhat node forked at earlier block

I am attempting to get the historical state of the chain within a block. That is, it is straightforward to use hardhat to fork at an earlier block but I want to be above to move up an arbitrary number ...
notthatintodefi's user avatar
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1 answer
39 views

how can i connect to ethereum p2p network without node? [closed]

Is it possible to connect to an Ethereum P2P network without running a node, and if so, how can one accomplish this?
Until To Do it's user avatar
1 vote
1 answer
93 views

Is adding a new feature to a Ethereum client, without altering consensus rules, a creation of a new fork?

So, if I add new features to my Ethereum client like new ways to Incentivize validators and nodes without altering the consensus rules, and 5 people start trying my Ethereum client, becoming nodes, ...
19216811's user avatar
0 votes
1 answer
38 views

Question about node performance on listening event of contract

what is the best way to listen new event emitted from contract with smallest delay? Other third party (Infura, Alchemy) is good enough or I have to run a new node ? ( as i know until now, public node ...
dang.pm.IT's user avatar
0 votes
1 answer
54 views

Not receiving attestations on Gnosis Node

I have an Avado i7. I have been running two gnosis validators nodes for over one year. Starting around June 12-14 I stopped receiving attestations rewards. I followed the guidance of the Avado ...
Mike's user avatar
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0 votes
2 answers
170 views

How to create a Mumbai Faucet

I want to create a Mumbai faucet to deliver Matic to people. To be able to do that I guess I need to set up a mining node so I can get Matic for validating transactions and them give this coins to ...
Kevin Kons's user avatar
0 votes
1 answer
230 views

Can you run an Ethereum node with a USB 3.2 SSD?

I've not seen much discussion around running an Ethereum node with an USB 3.2 SSD, like this one, with ~1050MB/s read/write speeds and 2TB. Would this work as storage for an ethereum node? What about ...
Danny B's user avatar
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1 vote
1 answer
611 views

Beacon consensus client lighthouse syncing speed decrease every hour - might take 1+ month to sync fully

I am installing a full Ethereum node (for geth client only) in VPS Vultr. Last time, I tried 4 servers with different prices. Because its syncing speed seems very slow so I changed (upgraded with ...
DEFI Expert's user avatar
3 votes
4 answers
626 views

Is sharding already working in Ethereum?

I understand that sharding is a solution to prevent full nodes to be very expensive to run in terms of storage, as they store the state of every smart contract on chain (more information about this ...
Falcon Stakepool's user avatar
2 votes
2 answers
1k views

Geth, BSC full node sync "State sync in progress" stuck at 70%

I am doing a BSC full node sync using the following command: /mnt/raid/bscdata/geth --syncmode full --config /mnt/raid/bscdata/config.toml --datadir /mnt/raid/bscdata/node --cache 32000 --rpc.allow-...
kakakakakakakk's user avatar
0 votes
1 answer
356 views

HTTP requests limitation for an Ethereum Node

I have a fully synced Binance smart chain node with a proxy_pass to nginx for external request. The problem that i have is the JSON-RPC return "null" if i process a large amount of requests. ...
Mohammed's user avatar
0 votes
1 answer
108 views

What is the size of Polygon Mumbai chain in GB?

I want to know the total size of the chain because I am running a The Graph Node on an EC2 instance and I have to allocate resources to that.
Falcon Stakepool's user avatar
1 vote
1 answer
331 views

increase the gas limit for read functions

hey guys this may be a broad question... I'm writing a smart contract that recursively builds an svg image given a seed number. the function that draws the image is a view function so it doesn't cost ...
Nolan Jannotta's user avatar
0 votes
1 answer
53 views

Is it 100% guaranteed that a process that listens to blockchain events will receive them if they get emitted?

When a smart contract emits an event, if I am listening to them for example with an application that stores all events from that smart contract into a database, do I have the certainty that I won't ...
Falcon Stakepool's user avatar
1 vote
1 answer
107 views

What happens if 51% of validators in an epoch vote for an invalid block

Hypothesis Full nodes that run both valid execution client and consensus-client would end up in a sort of deadlock and stop syncing. The consensus-client would try to feed the execution client with a ...
Tobias Bergkvist's user avatar
0 votes
1 answer
48 views

How to determine ETH price of ERC20 token using my own full node?

So I have a contract address of an ERC20 token and I have direct access to a full node. I want to determine the price of that token in ETH without making any external API calls and just by using my ...
jafarlihi's user avatar
  • 111
3 votes
2 answers
75 views

Can I turn a testnet node off every night?

I'm interested in running a EL+CL node on a testnet to aid development. Can I turn it off overnight? I assume it de-registers itself gracefully from the network so I'm guessing the problem will be ...
Luke Puplett's user avatar
0 votes
1 answer
75 views

Chainlink Docker Failing to Create /chainlink/ directory

I am running into this issue "Error creating root directory \"/chainlink\": chmod /chainlink: operation not permitted" when running the Chainlink node docker. latestimage=$(curl -s ...
Kyle Santiago's user avatar
0 votes
1 answer
32 views

What is the relationship between wallet/accounts and Client Nodes?

For client nodes such as Parity or Beth, does every wallet or account have to be associated to a client node? My understanding is that the client node is the interaction to the exchange.
HoboJeff's user avatar
1 vote
2 answers
551 views

Is mev-geth analougue to geth?

I was reading about ethereum node impementations and found something about mev-geth, wich is a fork of geth made by flashbots. If i want run a node just to propagate my own transactions and query the ...
Rafael's user avatar
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1 vote
2 answers
844 views

Communicating with the Ethereum network without node providers

I am learning about the Ethereum network and I think I have a general understanding of how things work. One thing I am unsure about is the precise mechanism by which an external user that is not part ...
Adham's user avatar
  • 181
0 votes
1 answer
448 views

How can I create a script that retrieves the transaction history of an address and organizes the information on excel?

I have address 0x389505f098a29a994A3ed0e674f07cd451dde42C and I need to create an excel spreadsheet containing all the transactions from 2022 (roughly 40,000). Cannot download the csv report from ...
madamepresident's user avatar
1 vote
0 answers
125 views

Why did the sync speed of the geth node drop?

my node synchronization speed has dropped a lot. If earlier 2048 blocks were stably imported in a couple of seconds, now (blocks from five years ago) the speed dropped to 30-60 blocks in 8 seconds. I ...
Mod diller's user avatar

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