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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467 views

parity TPS optimization - please help

how to accelerate parity PoA ? I have been benchmarking different Ethereum clients with a focus on their PoA capabilities. Current results are: 56 TPS with parity aura 322 TPS with geth clique ...
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1answer
91 views

web3.py - How does web3.auto choose a provider node?

I'm having this other issue which has forced me to rely on either Infura or web3.auto in order to call getTransactionReceipt. I've noticed that when I create a w3 instance from web3.auto it almost ...
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1answer
211 views

Parity all pending transactions (not local)

From some version of Parity, it began to start like this And now, when i try to get all pending transactions from the whole pool, i'm getting only these local. But i need to get ALL as earlier. How ...
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1answer
340 views

Mining for local Parity node

I run a private local Parity node that uses the Ethash engine. How do I use a miner with it? I tried ethminer like suggested in the wiki (https://wiki.parity.io/Mining), but executing ethminer -G ...
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1answer
75 views

Validator stuck in Pending State

I am working with a kovan validator set for a POA network. When I try to add validator, I make the Initiate Change call and it goes through. Validator goes to pending state. When I make the Finalize ...
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176 views

“RPC error, your account is locked” when I try to deploy the last version of parity-bridge

I have already success to deploy the last version of parity-bridge (last month), but today i have pull the last version of parity-bridge. I have that on my terminal : env RUST_LOG=info parity-bridge-...
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0answers
27 views

Parity Ethereum node missing CLI option to display configuration setting of a running node

I'm playing around with config.toml and using CLI options. Maybe I missed something, but I'm interested in executing a command by which I can exactly see what options are in effect when a Parity ...
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1answer
147 views

Opcodes PUSH, DUP and SWAP?

I studied EVM implementations and the bytecode sequences used by them. I wondered that there are three opcodes which are recognized by the EVM but actually are invalid opcodes. B0 PUSH B1 DUP B2 ...
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346 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': '...
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66 views

How to open Parity database from javascript (how to open column families)?

I am trying to connect to Parity database at var dbPath = 'C:\\Users\\username\\AppData\\Local\\Parity\\Ethereum\\chains\\ethereum\\db\\906a34e69aec8c0d\\overlayrecent\\db' form javascript using npm ...
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1answer
210 views

ACCESSING BLOCKCHAIN ON “ESP8266” USING THE “NODEMCU BOARD”

I have read this example where it tries to interact with the Ethereum blockchain via a micro-controller (ESP8266 and NODEMCU board). However, I do not understand if an Ethereum client (Geth or Parity) ...
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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 ...
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2answers
2k views

'curl: no URL specified!' Installing Parity on AWS (Ubuntu)

The accepted answer found here does not seem to work for me: https://ethereum.stackexchange.com/a/46926/11266 I created an EC2 instance of Ubuntu 16.04 LTS (HVM) $ bash <(curl https://get.parity....
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1answer
157 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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2answers
55 views

Is it possible to call a function of smart contract “without” installing “Geth” or “Parity”?

Is it possible to call a function of smart contract to send a transaction (for example, writing on the Ethereum blockchain) but "without" installing "Geth" or "Parity" clients? In a more general ...
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1answer
59 views

Updated: How to interact “directly” with smart contract via a micro-controller?

Assume we have a micro-controller and it collects a meta-data (ex. a payload as a string). How this micro-controller can interact "directly" with smart contract to write this data to the blockchain? ...
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1answer
221 views

What advantages does Trinity have over Geth or Parity? What differences does it have?

With the exception of the language it is being written in, what are the main differences that Trinity has over Geth or Parity (if any). What advantages does it have? Disadvantages?
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0answers
85 views

Is there something like “metrics” and “monitor” modules for Kovan?

I would like to monitor some parameters for Kovan and Rinkeby clients. Geth provides a monitor module that works with Rinkeby specifying --metrics when launching the client, and attaching to the ...
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1answer
2k views

Difference between Geth POA Clique and Parity POA Aura

I am creating my own private blockchain with a POA consensus. What is the difference between POA networks created by Geth (Clique) and by Parity (Aura), and are there scenarios that favor one over the ...
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0answers
105 views

Transfer tokens from Smart Contract to address using signTransaction + private key

I tried several links like this one, but when I call transfer function from contract and try to send tokens, its sending 'ethers' not 'tokens', how can I send tokens by signing a transaction offline ...
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0answers
57 views

What portions of the block are validated in Geth's --fast and Parity's --warp mode?

When I am syncing an Ethereum node using Geth's --fast mode and Parity's --warp mode, what portions of the block are being validated as they are being downloaded? I understand that --fast and --warp ...
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1answer
167 views

parity smart contract with large data

I'm following this tutorial: link for building a private parity blockchain, for some reason I have to insert some binary data into smart contract. What do I have to do to let the smart contract store ...
4
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1answer
657 views

What is fat db in parity

What does fat_db option in parity do? I don't understand its description from docs: Build appropriate information to allow enumeration of all accounts and storage keys. Doubles the size of the state ...
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1answer
193 views

Using the Parity or Geth light client, how can I monitor an address for transactions?

I'd like to use Parity or Geth, in light client mode, to monitor an address for transactions. Essentially, I should be able to check each block for transactions involving a certain address. In the ...
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1answer
53 views

Contract deployment out of gas, but was created anyway?

I have deployed a contract with Parity on Kovan, which did not show up in the contracts menu after contract deployment was done. I had to watch it manually to be able to see it in the contracts menu. ...
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258 views

Parity - what --tracing and --pruning options use to get all blocks fastest way

I need download all blocks to be able to get all history transactions to create some statistics like mean Ether amount etc. Is it necessery to use --pruning archive and use ~ 1TB od disk? Or default ...
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1answer
646 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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2answers
550 views

Error: Couldn't decode bytes32 from ABI: 0x The size doesn't match

I am querying a mapping via a web3 call like this: var Web3 = require('web3'); const web3 = new Web3(new Web3.providers.HttpProvider('https://kovan.infura.io/key...')); var contractABI = new web3....
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1answer
150 views

Which Ethereum clients support running a full node? [duplicate]

Are there any other Ethereum clients besides for Geth and Parity which support running a full node?
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1answer
104 views

Can race conditions occur in PoA network?

I have the following contract deployed on my PoA network with two sealers, node1 and node2. Let's assume a user, user1, submits a transaction with call to process() method to node1 and another user, ...
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1answer
211 views

How to fund account for parity private chain?

I'm having trouble funding accounts when starting parity with a custom chain. My json file is { "name": "DevelopmentChain", "engine": { "instantSeal": null }, "params": { ...
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1answer
421 views

How to use “etherscan” to push a raw transaction without running a node?

According to this answer, how to use etherscan to push a raw transaction without running a node? In this case, do not we need to install Parity or geth or any Ethereum client ?
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1answer
1k views

“being full node” vs.“being sync” : Are they the same?

When we try to be sync using Parity or geth, Does it mean that we are trying to be a full node ? And is it correct to say that: being sync = being a full node = keeping the entire blockchain ?
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1answer
130 views

How to prepare VPS enviroment for instalation and running of Ambrosus node?

I would like to run Ambrosus development node. On Ambrosus github there are sume instructions, but I do not know how to prepare enviroment, what version of Ubuntu I should use and what tools should I ...
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0answers
422 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 ...
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1answer
663 views

How to run Parity on Windows correctly?

Installed Parity 1.11.7 from the official website on Windows 10, then synced it, got the expected result: Then rebooted the PC, tried to launch Parity using the shortcut in Start menu (which points ...
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100 views

Parity warp sync doesn't return event logs

Our Dapp uses events as a form of storage. For connection to blockchain we use local Parity node. A couple of days ago I needed to resync it after the server failure. After the resync all methods ...
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0answers
117 views

“'parity' is not recognized as an internal or external command, operable program or batch file.”

I downloaded Parity installer from here : https://www.parity.io/ and then installed it on computer with OS Windows 8.1. Then even I restatred computer. However, when I use following command: parity ...
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1answer
277 views

How to be sure “Parity” is installed on Windows?

I installed Parity after downloading and running exe file from here : https://www.parity.io/ However, when I use following command to connect to Ropsten as follows : parity db kill --chain ropsten ...
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0answers
620 views

Connecting MetaMask with parity

I have configured parity to listen on an IP (and not on localhost) and verified that port 8545 opens when I start parity. I can reach the parity UI via a browser but I cannot connect MetaMask to ...
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0answers
48 views

Hard vs Soft Hierarchical Address Derivation

I'm using parity as node/JSONRPC and I'm generating a HD wallet with it. Basically I have one address and, according to the Parity documentation, I can generate a new address with this command: ...
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1answer
485 views

Is it possible to connect remix and Parity?

I would like to connect remix to a parity node running on my machine. Even if I am setting up parity with the --rpc or --jsonrpc switch, I cannot connect. Is it even possible? Thanks!
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0answers
26 views

Parity send local without fee

I created some accounts on my computer use Parity. I'm sent ETH to this accounts. Now, i want move all balance of all accounts to new account without fee. I can? Of course, the new account in local ....
3
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2answers
346 views

Are there different clients for Quorum compared to Ethereum?

Is it correct to say the following? Ethereum clients run Ethereum nodes. Geth and Parity are examples of Ethereum clients. Quorum clients run Quorum nodes. Is there an equivalent to Geth and ...
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1answer
276 views

Parity dev node cannot send transactions via web3 py

I'm using a parity dev node via docker with the following set-up: docker run -d -p 8545:8545 parity/parity --config dev --jsonrpc-interface all --jsonrpc-apis all --jsonrpc-cors "*" When I attempt ...
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0answers
126 views

How does Parity pendingTransactionsStats works?

I am trying to develop little method to track status of my pending transactions by given address together with propagation info. But I am bit confused about pendingTransactionsStats behavior as it ...
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0answers
104 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......
2
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1answer
215 views

Roll back current block to a prior block

For testing purposes I want to create some blocks on my computer, not broadcast them to the network, and then rollback my current block in Parity. In git you would do it like this: Edit some files ...
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0answers
88 views

invalid address error on resend method

I've connected to Parity client with geth attach and try to resend my transaction with resend method. >web3.eth.resend("0xed2ec75fa32e19869cc740478828aa42471705d87bda87ca55cb7f71ebcf2de2", ...
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1answer
259 views

What is the correct truffle configuration to deploy DApp to the POA test network?

I am currently struggling to deploy my DApp to the POA testnet (https://sokol.poa.network). I have a working DApp that I deployed to my local Ethereum testnet using truffle compile and truffle ...