Questions tagged [openethereum]

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Geth/Parity node - When is a new block imported

Based on my observations and also on block-timestamps-vs-received-timestamp, I suppose that a block "n" is imported into geth or parity node, only after a block "n+1" is mined. Is ...
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OpenEthereum Freezer (move ancient data to HDD)?

Go Ethereum 1.9 has a nice feature to move ancient data "to the freezer". Does OpenEthereum provide the same feature?
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Linux, Parity, Ethereum and EthMiner

I just started playing with Ethereum mining on a Linux box. I lost a considerable amount of time installing Parity (https://www.parity.io/ethereum/) on the machine. Then I created an account using W3, ...
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Recovering of Parity 1.7.8 wallet - integrating to Open Ethereum

I last used Parity in 2018 - having a wallet with different coins. As I did a Windows Inplace-Upgrade I saved my C: drive and hoped at that time, that this should be enough to backup my account and ...
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Openethereum node syncing at 0.2blk/s despite decent server specs

I am running an Open Ethereum (ex Parity) node on a quad-core 8GB Ram 500GB ssd ubuntu 20.04 vps. These are my disk's write and read speeds. I can't understand why my node can download blocks at a ...
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Problems requesting data to Open Ethereum (ex parity) node

I am creating an open ethereum (ex parity) node through the command: ./openethereum --mode active --db-compaction ssd --base-path="/media/nodessd/data" --cache-size 1024 When I try ...
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1answer
15 views

Is geth / parity an on-chain or off-chain node?

I am drawing the architecture of a dapp but I cannot understand if the node (geth / parity) is in the on-chain or in the off-chain part.
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How to test if a transaction create a specific event using the trace api?

I need to frontrun a transaction on a specific contract only if does a specific thing which is fired as an event once included in a block. So how to get the event based on current contract state of an ...
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Open Ethereum Syncing

How do I know if openethereum syncing is done and what should I do next? This is what my current state looks like
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How much mining before I achieve a coin? [closed]

How much mining before I achieve a coin? How long before I achieve one coin
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Eth 2 staking - Required mainet recent blocks

How many recent ethereum 1 mainet blocks does ethereum 2 staking clients need? I am syncing eth 1 mainet with OpenEthereum (Parity) and saw that I could change the --warp-barrier to 11500000 which is ...
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Why Openethereum sync strategy is not the same for different machines?

These days I ran several ETH nodes using openethereum (3.1.0 stable ) . All these node has the same config, same system ( ubuntu 20) , same SSD storage. I found a strange thing: they have different ...
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22 views

Is it possible to visit Openethereum JSON-RPC from external internet ( not from LAN )?

as far as I know, it's very easy to send JSON-RPC request to a ETH node running with openethereum from LAN, I want to know, what can I do to make this ETH node public, and allow people who is from ...
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31 views

Extracting blockchain state at a specific block number to interact with deployed contracts

I want to extract main net state at a specific block number using geth or parity. Then using the extracted state I want to interact with contracts deployed during that time using ethers js. Can ...
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55 views

Understanding eth_estimateGas with regards to gas price, and current mempool

Does anyone have a detailed understanding of how eth_estimateGas works with regards to gasPrice and the current mempool state? I have historically seen some really odd behavior when using ...
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Forking a private chain consequences

If I were to fork my private Proof of Authority chain can I revert without pruning a block with corrupted data and subsequently all successor blocks which do have complete data and if so how can I ...
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1answer
54 views

Gas cost of multiple small transactions vs one large one

On the main ethereum network would the gas cost be the same to post several small transactions or one large transaction if the overall data size is the exact same?
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How to read the Ethereum Block header and check contract

I have downloaded some Ethereum block headers, such is one example (omitted some details for conciseness): {"difficulty": 7314508281338, "extraData": "...
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175 views

Importing Parity/OpenEthereum private keys to Geth: got zero balance

I have to migrate to Geth from Parity/OpenEthereum as the latter completely stopped syncing for me. First of all I tried to copy one of my private keys exported with parity_exportAccount() - which ...
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168 views

Is there any way to do dry run a smart contract on Ethereum Mainnet?

For testing my codes without side effects (e.g., consuming gas, etc.) on the development environment, I'm finding a way to execute a smart contract that interacts with other contracts deployed on ...
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119 views

openethereum node disk usage

Using openethereum to sync the eth blockchain, after synced and now the disk space keeps growing 20G per day. The .log file in the db folder keeps growing. After restarting the node, the space will be ...
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9 views

Unable to transfer UKG from Parity UI

Looking at my Parity UI at the moment and finding out I have two issues when moving my UKG to another address. it says the Parity UI is not connected to any peers, but i have a perfectly working ...
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12 views

What is the expected daily egress traffic from full Testnet node

I have a full testnet node running on GCP with Parity. After about a week of having it fully synced, the egress traffic from the server spiked substantially and started sending out 250GB per day to ...
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75 views

Using a full archival node like Parity or Geth, how to query which is the last transaction which changed the value of a particular storage address

I tried various third party services like Infura, and there support all told me that this was unsupported and that I would have to run my own Parity full archival node for this. But even if I would ...
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26 views

Can't unlock account with geth attached to parity on classic chain

I run parity 2.7.2 on Ubuntu with --jsonrpc-apis=all on the classic chain: #> parity --chain classic --light --jsonrpc-apis=all 2020-08-05 15:20:15 Starting Parity-Ethereum/v2.7.2-stable-2662d19-...
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the best way to monitor my own account transactions in openethereum

Please I want to know if I subscribe to pendingTransactions with web3 will it monitor and send notifications of accounts pending Transactions only or all pending transactions on Ethereum network. my ...
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272 views

Connecting geth and openethereum on a private network

Private network, running geth 1.9.15 and openethereum 3.0.1. Parity converter was used to create the chain.json file for openethereum. The two node show the exact same: genesis block network id ...
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49 views

Snapshot syncing proceeds but block number is still zero

I use OpenEthereum(v3.0.0) on warp sync. OS is ubuntu server 20.04. But its snapshot syncing is proceeding but block number is still zero(#0). Please see the following image. Is this proper condition?...
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Migrate from parity to geth

How do I migrate full node from PARITY to GETH ? So the easy part to tun geth I know, but How do i move all the keys from parity to geth? I've tried to copy the keystore folder from parity to geth, ...
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Is it possible to get info via JSON RPC about --no-ancient-blocks flag for an openethereum node?

It's possible to run an openethereum node with --no-ancient-blocks flag. How can I check that a node was started with this flag via JSON RPC call?
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1answer
128 views

Does --no-ancient-blocks affect on trace_call for the pending block?

Please explain how --no-ancient-blocks flag works for openethereum. I've checked that with this flag I won't be able to make requests eth_getBlockByNumber for ancient blocks. But what about ...
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Are transactions with too high nonce propagated to other nodes from local pool by parity?

I want to understand what happens with tx when I create tx with too high nonce. It's saved in a local queue, but do other nodes get the information about this tx? I don't know, can I remove tx from ...
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133 views

geth’s “debug_traceTransaction” vs parity's “trace_replayTransaction”

Is it at all possible to transform geth’s debug_traceTransaction trace into something that looks like what you get from parity's trace_replayTransaction? Parity’s trace module is extraordinarily ...
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368 views

Parity transaction tracing and how to determine transaction/call failure or success

I am currently working on a in-payment monitor system for Ethereum using the trace functionality in the Parity Ethereum Client. The reason I am using the trace functionality instead of just looking ...
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68 views

Syncing Poblem With Parity Docker Container

I'm running a Parity node inside a docker container and i'm trying to sync it to the ropsten network. However after around 1300-1700/4257 snapshots synced I keep getting Encountered error during ...
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1answer
28 views

Is it possible to explicitly tell if a node is using Geth or Parity?

Is it possible to explicitly tell if a node is using Geth or Parity? This can be from a raw RPC call or the Infura (or other provider) layer. Is there an explicit way to do this without making an ...
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1answer
98 views

How can I tell if the node I am using is exposing the Parity trace methods?

What is the best way to tell if the node I am using is exposing the Parity trace methods? One way I know if is to call a contract on Kovan and look for a revert reason that says to expose the trace ...
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58 views

How to know the reason of transaction's reversion in parity?

I am testing ERC20 USDT contract locally with parity. I imported contract to my private testnet and manually generated raw transaction that calls "transfer" method of contract. I send it to the node ...
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2answers
991 views

Is the blockchain compatible between Geth and OpenEthereum(Parity)?

I'm trying to set up a full node. Being a DeGoogler I instinctively avoid Go, so I defaulted to OpenEthereum. After compiling on my maching I get 'Illegal Instruction', which seems to be because of my ...
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1answer
47 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] ...
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1answer
86 views

Ethereum Parity is stable ~800 blocks behind

I can't get up-to-date with Parity. Real blockchain height is near 9831752, Parity is pushing 9830795 currently, and Qed is 9831228. Initially downloaded blockchain using warp mode two ...
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34 views

Invalid nonce and gaslimit

When i try to deploy a contract i get the following errors Skipping adding transaction to block because of gas limit: 0x7893d69159325fb60c90772c84b9e3c74a1627440d70e799fce81275066e8743 (limit: ...
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23 views

How do I unlock the Parity Ethereum Ethash prefunded account?

So i have my ethash node running with the following chainspec.json { "name": "Morden", "engine": { "Ethash": { "params": { "...
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42 views

Parity Kovan Node suddenly came to a halt ( untimely stopped )

Parity version: version Parity-Ethereum/v2.7.2-stable-2662d19-20200206/x86_64-unknown-linux-gnu/rustc1.41.0 Operating system: Linux Installation: one-line installer Fully synchronized: yes Network: ...
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1answer
13 views

Updating chainspec without resetting (a private Parity blockchain)

I'm running a private Parity blockchain, currently in test mode. There is always a possibility that we'll have to change some initial parameters when the blockchain is live. For example, we might want ...
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1answer
63 views

Who is 0x093a0ed738b65ed34f2a37a2d44c5e3cd0d0dd45?

I was working with ethereum using: - solcjs web3 truffle public no firewall kovan node (parity) and MultiSigWallet.sol from https://github.com/gnosis/MultiSigWallet And when I checked my wallet in ...
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37 views

Web3 Call() function send parameter and code separately

I am using parity ethereum, When I use the call() function from web3 js, the data which I receive data = data + params which is embedded. Is it possible to send from web3 js data and param separately ...

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