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Questions tagged [parity]

Parity is an Ethereum client, written from the ground-up for correctness-verifiability, modularization, low-footprint, and high-performance. To this end, it utilizes the Rust language, a hybrid imperative/object-orientated/functional language with an emphasis on efficiency.

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1answer
391 views

How to setup parity light client?(warp sync is slow)

I have a full node synced using --warp but since I have a hdd, the final bit of the sync never catches up(due to the high transaction IO). How do I switch to a light clent on parity if I already have ...
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1answer
153 views

Unable to start Parity node

Parity Ethereum version: version Parity-Ethereum/v2.0.1-beta-e7dc0be-20180726/x86_64-linux-gnu/rustc1.27.2 Operating system: Linux Installation: built from source Fully synchronized: Network: ...
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1answer
608 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 ...
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1answer
61 views

Where does parity look when trying to import geth keystore files

I'm in the directory for parity keystore files, namely, ~/.local/share/io.parity.ethereum/keys/ and I've run: parity --import-geth-keys But I get an error saying: Failed to find geth keys ...
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how can I retrieve the exact pending nonce from parity ethereum node?

please help me, the rpc method parity_pendingTransactions cannot return the result that I hope. https://github.com/paritytech/parity-ethereum/issues/11385
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1answer
358 views

How to Import an Online Wallet to Parity?

I wanted to Import my Ethereum Online Wallet (ether.li) to Parity. I created 2 Accounts with the private keys and 1 Wallet with the Wallet Address. How can I transfer my funds to another Wallet (...
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Transactions stuck in pending state on a geth node

I have a private network of a geth and a few parity nodes. I use the geth node to submit transactions via RPC. A mining pool runs on one of the parity nodes. That node is connected to the geth node ...
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2answers
501 views

Trouble syncing parity node

I have a problem with my node. I have set up a remote node which was working for a few months but recently the synchronisation has stuck. So I deleted the db to resync and this is where my problems ...
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1answer
309 views

Parity - Permission Denied, Cannot write version file

I am trying to run a Parity daemon. Here is my shell command: sudo parity --db-path . --port=20000 --ws-port=20001 --jsonrpc-port=20002 --jsonrpc-apis web3,parity,parity_accounts,personal,eth daemon ...
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1answer
52 views

Strange result for w3.eth.filter({'fromBlock': 2500000, 'toBlock': 'latest'})?

I use Parity: Parity-Ethereum//v2.2.7-stable-b00a21f-20190115/x86_64-linux-gnu/rustc1.31.1 I tried code to see new entries for block range. l = w3.eth.filter({'fromBlock': 2500000, 'toBlock': '...
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What are the pointers for moving Ethereum into production for a private blockchain?

I am moving an Ethereum blockchain into production and I know many cloud services exist, including BaaS from Microsoft, AWS, Digital Ocean, and Google cloud services. Is there any criteria from ...
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1answer
400 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?
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1answer
103 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'))...
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1answer
615 views

How to deploy a contract to parity using truffle?

I get this when trying to deploy to parity - Writing artifacts to ./build/contracts Invalid JSON RPC response: "Provided Host header is not whitelisted.\n" I am new to using truffle with ...
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3answers
39 views

How are transactions with the same gas price ordered in a block?

If A has gas_price == 1gwei and B has gas_price == 1gwei, how does the miner decide which tx gets executed first when ordering them into a produced block? Does it depend what mining client is used? ...
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How to detect front runners?

I'm running an arb bot between uniswap and other exchanges, but my transactions keep being front run. I know I can just increase the min_tokens parameter, but I'd like to be able to detect and ...
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1answer
27 views

How different clients, with different implementations communicates through the network?

sorry for the dumb question, but i'm wondering how different Ethereum clients, like for example Trinity, Geth, or Parity, written in different languages, communicates over the network. I did not found ...
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1answer
640 views

Parity, Web3, Nodejs - Error: Transaction was not mined within 750 seconds, please make sure your transaction was properly sent

I'm using Parity ( "ropsten" test net), Nodejs and web3js to deploy smart contract from my system. Parity is synchronised in test mode, but when I run below code using Nodejs, it gave me a transaction ...
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1answer
421 views

Help transferring Ether Tokens using Parity

I configured Parity to trade Ether to BNT. I followed the steps here https://blog.bancor.network/how-to-trade-your-bnt-using-parity-6061dca37354 and funded my EtherToken Contract. This is the ...
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1answer
677 views

What is the best parity configuration to run a full archive node on raspberry pi?

I am using a raspberry pi to download the archived version of the blockchain with parity. I've started parity with parity -d /home/xxx/data/Ethereum --pruning archive --public-node However, the ...
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1answer
587 views

How to connecting the nodes when Parity starting

I follow this tutorial to run the PoA demo on Parity. And when I try to connect the nodes. I found that should do everytime after Parity started. Can I connect them when I starting Parity? I found ...
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1answer
35 views

Ropsten Blockchain Size on Disk December 2019?

Hello what is the size of the Ropsten Blockchain, on disk, using Parity with full trace on? (Info required to provision a VPS).
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2answers
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How to connect these **Remix - kovan - parity**?

I have been trying to connect deploy a smart contract from remix onto kovan chain via parity but kept on showing even after trying with all the rpc flags. if possible please throughly explain the ...
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1answer
1k 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 ...
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1answer
116 views

Private network: Using geth to mine for parity nodes

I want to set up a private Ethereum network using a parity client. Ideally, I want to resemble the "real" Ethereum network as close as possible. Thus, I want to set up a proof of work network. For ...
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0answers
15 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?
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1answer
35 views

What is txpool equivalent in Parity?

I'm aware of txpool module in Geth where it able to show how many transactions in the pending and queue state. How to get the same result in Parity node? The parity_alltransactions looks like ...
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1answer
689 views

Why does my parity sync get stuck all the time?

I have a server set up with a node to read from the blockchain, so I don't have to run my node on my computer all the time. Sometimes the node gets stuck and I reset the blockchain with ./parity/...
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1answer
243 views

How to confirm request in Parity

enter link description hereI send a transaction with contract. I use unlock account to account it. It can skip the first confirm. Which is asked to confirm deploy. But it can't skip the second confirm,...
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1answer
58 views

Why admin.addPeer() command did not add parity client for private chain with Docker?

I would like to set up private chain which both geth and parity clients running on the same network. here is a sample repository with docker-compose file: https://github.com/user48736353001/devnet ...
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1answer
42 views

How does Geth query the blockchain?

This question has probably been already answered somewhere else but I didn't find anything on the internet so I'm asking here. I wonder how clients such as Geth query the blockchain to get specific ...
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1answer
14 views

Where is the Parity v2.5.11 web UI at?

This used to open the parity web UI for my local node, but now the browser it says it cannot connect, as if I just entered any other bogus port: http://127.0.0.1:8180/ I upgraded from Parity 1.7 to ...
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0answers
13 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 ...
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4answers
287 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; ...
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1answer
40 views

How can I export/show private key on parity cli?

I did this command on parity parity --chain mainnet account new I got the address but, How can I export or see the private key?
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2answers
29k views

How to select a network id or is there a list of network ids?

We're starting a new open network based on the Ethereum protocol. The question is how to allocate a network id for the new network. In Ethereum we have main net, four test networks, classic with test ...
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1answer
200 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 ...
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1answer
111 views

Is it possible that Ganache can handle a private key without an “0x” prefix, but Parity cannot?

I am trying to sign and send a transaction as follows: let signedTx = await web3.eth.accounts.signTransaction(options, PRIVATE_KEY); let txReceipt = await web3.eth.sendSignedTransaction(signedTx....
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1answer
39 views

Oraclize parity error

I have a contract in Remix which runs perfectly on the Ethereum Ropsten Test net. I now want to deploy the contractin the main ethereum net using parity. When I click to deploy the contract in parity ...
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1answer
49 views

transactions in rpc block response sometimes have chain null and sometimes correct chain

when doing e.g. a blockByNumber rpc request I am getting a result like this from parity: https://gist.github.com/ligi/fbc7061d93f087cf0eb0f4db83d1fced what is puzzling me that some transactions have: ...
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1answer
102 views

Invalid type: sequence, expected a string for key 'rpc.cors'

Trying to run parity using the configuration file node.toml file $ parity --config /data/parity/node.toml Loading config file from /data/parity/node.toml You might have supplied invalid parameters in ...
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1answer
40 views

Has someone an example string to connect using parity?

I have a geth connection as follows - geth --datadir ~/blockchain/mybc1 --rpc --rpcaddr "localhost" --rpcport 8545 --unlock "0x0c12901e1ec7f80763cd433e8eca0c837d11a0c1" --rpc --networkid 1234 --...
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1answer
27 views

I am following Ethereum Book, but I am getting errors in the Terminal

I am learning Ethereum Development from the Ethereum Book by Andreas. I have stumbled on the first error trying to do $ cargo install . I will post the instructions as an image and the errors I got. ...
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1answer
28 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 ...
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1answer
85 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 ...
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1answer
92 views

.toml stream did not contain valid UTF-8

While trying to configure parity using the toml file (Tom's Obvious, Minimal Language), I stumbled on this error - $ parity --config /data/parity/node.toml Loading config file from /data/parity/node....
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1answer
87 views

Deploy contract to Parity dev chain using Remix

I'm trying to deploy a contract via remix to my local development chain. However, the transaction never gets mined and is pending forever. When I use a node script it works (at least I receive the ...
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4answers
2k views

Parity Trace Issue: TraceDB resync required

I am trying to use the trace functionality included in the parity node (https://github.com/paritytech/parity/wiki/JSONRPC-trace-module) but I am having trouble configuring my node. I have tried to ...
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0answers
58 views

State verification during full sync

How does the state verification work when doing a full sync from scratch? Does the state get generated locally for each block using the transactions downloaded (in the transaction trie) and then ...