Questions tagged [openethereum]

The tag has no usage guidance.

279 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
7
votes
1answer
342 views

Error importing transaction: Transaction(InvalidChainId) in Private POA

Problem I am trying to send some transactions to my private chain, and all transactions are getting failed. I am receiving this error: Error importing transaction: Transaction(InvalidChainId) ...
7
votes
1answer
750 views

Parity Error: Account not found for the current chain (Kovan)

I am having problem starting Parity with a account that I created using Metamask. This account 0x76Eb17471A5fb78EF6768254D1dAEc528ec6b5a8 has received multiple ETH from Kovan faucets. Running the ...
6
votes
2answers
625 views

Parity-like Solution for using Ledger Nano Anywhere

I'm looking for a "Parity-like" solution so that I'm able to use my Ledger Nano on any Ethereum-powered website that doesn't support a Nano natively (something like Radar Relay). I know I can do this ...
5
votes
1answer
738 views

web3.eth.getBlock returns null

I have a very similar problem as https://github.com/paritytech/parity-ethereum/issues/8788 When I use web3.eth.getBlock for the first 1 million and latest 50,000 blocks (approximately), I get the ...
5
votes
1answer
2k views

SendSignedTransaction web3 v1.0 smart contract method call

Running parity node, connected to Kovan testnet. Contract Address: 0x354Db5AE17b11fbc01A8a146B63506b1d90872E0 Using a nodejs app + web3 to send/sign transactions with the private key corresponding to ...
4
votes
0answers
47 views

What is an EVM externality?

While reading the OpenEthereum codebase, I encountered this type: /// Externalities interface for EVMs pub trait Ext { /// Returns the storage value for a given key if reversion happens on the ...
4
votes
0answers
122 views

What are best practices for monitoring the OpenEthereum (Parity) logging?

Monitoring of the logging output of the Ethereum clients is essential for stable blockchain operation. Do you have recommendations, experiences and/or lessons learned concerning the logging of ...
4
votes
1answer
666 views

eth_getTransactionReceipt returns null only sometimes and only on my node, tx is successfully mined in

I'm having this strange problem and it may be related to the way my node is configured. I'm making calls to both infura and my own nodes like so: {'id': 123, 'jsonrpc': '2.0', 'method': '...
4
votes
0answers
197 views

Does Geth and Parity store blockchain in level db in same format?

If not, what are the diffrences?, for example geth db format is: var databaseVerisionKey = new Buffer("DatabaseVersion"); // databaseVerisionKey tracks the current database version. var headHeaderKey ...
4
votes
2answers
392 views

Truffle hangs forever with parity with PoA

I'm trying to create a private chain using parity (PoA) and truffle but when I do truffle migrate it hangs forever with the following output: > [ > { > "jsonrpc": "2.0", &...
4
votes
1answer
466 views

How can I use swarm with metamask or parity node?

I want to use swarm, but I wan't to download the all blockchain data. Is it possible to use metamask or parity node instead?
4
votes
0answers
337 views

Why are there discrepancies between client message signatures?

I have been investigating message signing using an Ethereum account, and have become somewhat bemused by the different signatures that I receive from different clients and different libraries. I have ...
4
votes
0answers
118 views

Querystring in Parity Dapp frontend

I'm playing with local Dapp for Parity. When I'm trying to use query string in Dapp, I can't get it with js: I see that iframe is used inside, but have no idea, how to add query string there. Is ...
3
votes
0answers
133 views

What's the bottleneck for openethereum slow sync speed?

I'm trying to sync a full node with --trace on, on some fast hardware, and I still get slow sync speeds (Syncing #5409141 0x5994…6a98 16.60 blk/s 1527.2 tx/s 91.8 Mgas/s). It's hovering between 10-15 ...
3
votes
0answers
56 views

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?
3
votes
1answer
155 views

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
3
votes
0answers
364 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 ...
3
votes
1answer
44 views

Can we add block reward contract in parity aura latter on

We know there is an option to add a block reward contract to incentivize authors of new block by using blockRewardContractAddress at chain engine specs. Is it possible to add this property in the ...
3
votes
0answers
68 views

Process address deposit from contract

Our service handles thousands (currently 10000+) of users and each user has his own Ethereum deposit address. To detect a new deposit we: Scan each block to get a list of transactions Get a list of ...
3
votes
0answers
89 views

Parity Ethereum Metamask

I have setup one test node on my machine. When trying to connect to Metamask, I keep on receiving below messages on the node console and am unable to connect with node using Metamask. 2019-06-14 14:48:...
3
votes
0answers
579 views

parity initializing snapshot whole night

I have parity installed and synced. I went out of disk space. I moved the chain to bigger ssd. Then I started the parity service and let it run whole night. It did not finish. in log I can see ...
3
votes
0answers
170 views

Defining a block reward contract in Parity Aura consensus

I've been looking at creating a block reward contract for Parity (as documented here). I'm wondering if I would be able to model a system using this that would send all the wei spent on a transaction ...
3
votes
1answer
72 views

Parity speed limitations

I have a question about the node limitation for mainnet. I want to send a lot of transactions at the same time (let's say 1k), on the ropsten network it queues every tx and send batches of 64 every 10 ...
3
votes
0answers
138 views

Parity create testing transactions and blocks

For test purposes, I would like to make test blocks including test transactions against main net. For example I would like to make a transaction that sends one ether from 0x1234567... to 0x99999999......
3
votes
1answer
266 views

Uncle blocks in Parity PoA blockchain

As I know that there is no competition for mining new blocks in POA blockchain as each node mines new block at its given time slot. I have a parity PoA blockchain setup with 5 nodes. While examining ...
3
votes
0answers
116 views

Proof of Authority Finalisation

Are there uncles/orphaned blocks in a PoA-based network? How do we reach consensus which is the real chain if the chain is splited/ we have a fork? Do you know any possible attack vectors on such ...
3
votes
0answers
213 views

Geth - Events not working/firing

I have an API (expressjs - nodejs) listening for different events from my contract. var web3 = new Web3(new Web3.providers.WebsocketProvider("ws://localhost:8546")); var tokenContract = new web3.eth....
3
votes
1answer
556 views

Can i delete some old files inside chaindata folder?

I am running geth with fast sync, Can i delete some old files inside chaindata folder so that my ssd will have some empty space or it will create some problems ?
3
votes
0answers
290 views

Parity RPC eth_newFilter not returning pending events

I'm trying to create a listener for new pending TXs on the network using Parity RPC's eth_newFilter method. I'm sending the request using the following parameters, expecting to get pending ...
3
votes
0answers
117 views

What would cause nodes on a private blockchain to gradually lose connectivity?

I have a private blockchain with 6 nodes, and a total of three miners. When I initialize the blockchain everything looks great and the nodes find each other starting with the bootnodes. After about ...
3
votes
0answers
521 views

Remote Web3 connection to Parity node running on AWS

I have an Amazon EC2 instance set up running a Parity node. I'm trying to communicate with it via Web3 (using Nethereum.Web3 in C#). If I connect locally with http://127.0.0.1:8545, everything works ...
3
votes
0answers
444 views

What's the difference between Nakamoto consensus vs Proof-of-Authority vs BFT

Documentations all around the internet are filled with these terms to categorise consensus protocols. What is the difference between them. For example: many call parity's tendermint as a BFT type ...
3
votes
0answers
540 views

JSON RPC transfer of ERC20 Tokens with Parity

How can I use Parity with JSON RPC to send and receive ERC20 tokens?
3
votes
0answers
2k views

geth vs parity: light client comparison

My computer is a laptop with a small SSD HDD, so I don't want to download the blockchain. Hence, I want to use --light to connect to other computers which do have a copy of the blockchain. Parity's ...
3
votes
0answers
275 views

Parity Signer qr code not working, stuck on "Parity Signer: Pending"

I'm having issues with with Parity when trying to do any type of transfer-I get stuck on the "parity signer: pending" screen. The prompt I get is "Please scan the transaction QR on your external ...
3
votes
0answers
260 views

Run parity in warp up to a certain block and archive mode after that

Is there a way I can run parity in warp up to a certain non-latest block, say starting from block 3,000,000 after the network spam and full archival mode after that?
3
votes
0answers
252 views

Parity signer issue

I'm trying to send raw transactions throught JSON-RPC api. I'm signing it offline (with python lib) and then using the eth_sendRawTransaction method. The thing is that sometimes it gets broadcasted ...
3
votes
0answers
747 views

How to import contract source code in etherscan.io

I'd like to learn which solidity source code is being used when I create a multisign Wallet in Parity 1.6 My goal is to import that source code into https://kovan.etherscan.io/verifyContract?a=...
3
votes
0answers
623 views

In parity, how can I delete the last blocks I downloaded without corrupting the database?

I have found the blockchain data in parity. I go to overlayrecent folder and from there to the db folder. It looks like the blocks are the .sst files. How can I delete the last blocks I downloaded ...
3
votes
0answers
517 views

Windows 32bit -- Geth/Parity

Hey is it possible to run Geth/Parity + mine on a Windows 32bit machine? I'm having trouble finding anything.
3
votes
0answers
212 views

Error installing parity

I had worked with geth, but getting lots of errors like last 1000+ blocks not syncing, so I have decided to switch to parity. I was following One-line Binary Installer, but was hit by: /bin/sh: 1: ...
3
votes
0answers
394 views

Do I have to set pruning to archive for supportive full node

I run a parity node on a server of mine (with a lot of resources and bandwidth) for the sole reason of supporting the network. I don't have any accounts there since my funds are on another machine. ...
2
votes
0answers
108 views

openethereum - high gase, transactions get culled / too many trasnaction in queue

We have the following openethereum service (docker-compose) version: '2.3' services: ethereum: # using v2.6.2-beta as it's stable # paritytech/parity-ethereum/issues/10371 image:...
2
votes
0answers
85 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 ...
2
votes
0answers
228 views

ethereum-php library SmartContract balanceOf always returns 0

I am trying to check balance of some USDT token using ethereum-php library but it always return 0. Here is the code, $contractMeta = json_decode('[{"constant":true,"inputs":[],"name":"name","...
2
votes
0answers
829 views

get event logs and debug trace from eth_call

I am looking for a way to execute a transaction locally (using local geth/parity node) for simulation only, before actually submitting it to blockchain. I know that I can use 'eth_call' RPC call and ...
2
votes
0answers
28 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
46 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 ...
2
votes
1answer
1k views

How to access Parity node's mempool with web3.py?

I'm running a Parity node with parity --jsonrpc-api all, then connecting to it in python3 with w3 = web3.Web3(web3.HTTPProvider('http://localhost:8545')). I can call print(w3.eth.getBlock('latest'))...
2
votes
1answer
234 views

How long did a transaction spend in the mempool?

I'm trying to create some statistics on how long a transaction spends in the mempool before being included in a block, so I can reason about future gas prices. It would appear transactions in Ethereum ...

1
2 3 4 5 6