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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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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2 answers
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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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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
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52 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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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
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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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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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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
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2 answers
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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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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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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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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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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
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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
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($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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1 vote
2 answers
202 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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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
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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
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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
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1 answer
43 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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2 answers
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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
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1 answer
166 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
478 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
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failed connecting with virtual machine

I have 4 geth Nodes runnning on my PC bootnode address is 192.168.1.2 the 5th node is running on Virtual machine with address ( 192.168.1.5 ) when i try to run the 5th node it doesn't sync with the ...
Amxdz's user avatar
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Tips for installing multiple blockchain nodes?

we are developing a product that requires connection to several blockchain nodes. Our customers decided to assemble their hardware to install a full node on it. In this connection, we have a question ...
Mod diller's user avatar
3 votes
4 answers
596 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
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1 answer
278 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
105 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
265 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
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1 answer
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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
95 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
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1 answer
40 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
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3 votes
2 answers
61 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
74 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
26 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
485 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
646 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
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0 votes
1 answer
397 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
116 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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0 answers
35 views

Why does the light node not use static peers?

I'm running a light mainnet node. Since she can't find any peers, I added them via the console by taking the enode from here. All the nodes that I added are synchronized, however, even after adding ...
Mod diller's user avatar
0 votes
1 answer
83 views

How to set up a lightweight ethereum node?

I would like to find out if it is possible to configure an ethereum node on ubuntu so that it does not store the entire history of the blockchain, but only the last couple of blocks. All I need is an ...
Mod diller's user avatar
1 vote
1 answer
609 views

Hardware requirements to build a strictly QUERYABLE archive node?

I need to have a fully queryable and updating copy of the blockchain on my computer. I don't need it to be exactly synced to the blockchain, I don't need to validate the latest block, if it were a ...
helpme's user avatar
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2 votes
0 answers
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Range had no valid blocks to process with Beacon set up on Prysm

While setting up the beacon with Prysm, I am getting the error Range had no valid blocks to process I am trying to set up the node for Ethereum. I would really appreciate the help. The official guides ...
Mert Deveci's user avatar
1 vote
0 answers
69 views

how can I fork Ethereum and turn it into my own sidechain how can I build my smart contracts in it?

how can I copy Ethereum source code and node software client to modify the data structure to turn it into my own sidechain and how can I build smart contracts in the sidechain so that the sidechain ...
Kristeon Simon's user avatar
2 votes
1 answer
1k views

How many GB is the ethereum Blockchain goerli and other testnets?

How many GB is the ethereum Blockchain goerli and others testnets? I could not find this information for testnets, if anyone knows this info using diferents sync modes in Geth (snap, full and archive) ...
Rafael's user avatar
  • 348
0 votes
1 answer
22 views

Creating a test blockchain that can sync with other nodes

I'd like to create a test Blockchain to experiment on Liquid staking. It would require to have several nodes to be able to sync together and have several validators on this testnet. However the only ...
Torof's user avatar
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