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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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Deploying a smart contract from EVM Bytecode via rpc calls

I am currently trying to deploy a smart contract with bytecode in a private Ethereum chain, using the "dev" chain of the parity client. For this, I compiled the following contract: pragma solidity ^...
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Setting up a private chain with parity and transferring funds to new account

I am currently experimenting with Ethereum and trying to set up a private blockchain using parity. For this, I created the genesis file below. I then booted two parity nodes with the following command ...
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1answer
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Load testing Parity Node

After I finished my single node PoA setup, I wanted to test how many TPS it can handle. During the load testing, I noticed that the transactions have stopped mining. Instead, I am getting "...
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1answer
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if I use parity -d “path” to sync with a modify path.will i type -d again when next time open parity?

this is my first time to use parity, so if i just type parity -d \abc to sync in the folder named abc. and should I type it again the next time I use the rpc service with parity? if not, will it sync ...
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1answer
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is there any problem if i put GETH/PARITY and webserver in one server?

my website need to use something about ETH,so i have to setup a geth/parity rpc server. is there any problem if i set the geth/parity rpc in my webserver?
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Parity configuration for maximum throughput

What’s the recommended approach for configuring a private ethereum network using Parity to achieve the highest possible transaction throughput? Which is theoretically around 1000 TPS. Let’s say my ...
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28 views

Transaction throughput: POA vs POW in private blockchain networks

I know that proof of work is resource intensive, while proof of authority is much faster as no consensus is required since the network is validated by the proper authorities. But in terms of the ...
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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 ...
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1answer
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Why root and status is null in transaction receipts

I deployed a smart contract on my private Parity node with Web3js. I got transaction hash and logs those I submitted at my contract creation. Everything works well, I can call functions correctly. ...
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0answers
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Revert reason and Parity trace

I have heard that the revert reason can be found in the Parity trace. I tried running trace_replayTransaction, and I have found that the output field contains the reason indeed, but there are many ...
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7 views

PoA throughput with multiple nodes

Will it be faster for my system, in terms of number of transactions per second, if my network has a lot of nodes? Does the number of nodes in PoA is related to the throughput? Particularly I am ...
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Deploy Contract with truffle on Private Network using Parity

First I followed this demo PoA tutorial to build a private PoA network using Parity. Then I wanted to use truffle to compile and deploy a smart contract. I tested the deployment using ganache test ...
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Parity chain spec update

I am running a private network using Parity with a custom chain specs defined in a json file. If i realized later that I should change a parameter in the spec, can i update it and the change will be ...
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1answer
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Parity PoA step duration

I’m setting up a private blockchain using parity. I need to use PoA consensus with the maximum throughput possible. What do you recommend to set the stepDuration value to? Can we set it to a very low ...
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Parity PoA/Aura: Tx stuck in pending state

I'm currently running a private Parity PoA chain. When I make transactions directly from validator nodes, they process normally. I'm trying to make send an independently-signed transaction to the ...
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1answer
27 views

Deploy contract as Authority in Parity PoA private chain

I deployed a Proof of Authority chain with 2 nodes, but when I try to deploy a contract with one authority account, it says that there is unsufficient fund in the account. I though PoA didn't rely on ...
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Building raw transactions in Parity

I need to generate custom Ethereum transactions but I prefer not using Javascript. Geth seems to offer a way to do it, according to this article. Can something be done with Parity as well? Is there a ...
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Re-setting file permissions on IPC file on Parity re-start?

Can anyone think of a clever way to re-set the IPC file permissions on a Parity re-start? I'm using systemd to control Parity.
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1answer
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How Much Space is Kovan Network to Download (Oct 2018)

How much space is it? How long did it take to download?
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1answer
28 views

Cannot connect to parity JSONRPC from local machine

Here is my parity config: [rpc] disable = false port = 8545 interface = "all" cors = ["*"] apis = ["web3", "eth", "pubsub", "net", "parity", "parity_pubsub", "traces", "rpc", "shh", "shh_pubsub"] ...
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1answer
42 views

Parity Node: Different results from trace_rawTransaction and trace_replayTransaction rpc calls

By calling these two rpc calls, I can track if a transaction invokes more message calls. Yet when I tried this two rpc calls, i get different result on this transaction. (https://etherscan.io/tx/...
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Gnosis/MultiSig - how to fix “you just received 0.000 ETH”?

I deployed Gnosis/MultiSigWallet contract, and after confirming I receive Parity-UI system notification "You just received 0.000 ETH", but I sent more than 0 in confirmed transaction. Execution order:...
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setting up parity on windows

Trying to setup Parity and Kovan to use Melonport app. Downloaded latest stable version of Parity 2.0.7 from Github as instructed and double clicked parity.exe. Starts terminal session which seems to ...
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getLogs RPC makes filters?

I am stuggling with memory explosion issue of Parity on my EC2 instance. The memory usage of it keeps increasing gradually. I suspect that getLogs API call makes some garbage on the node. But I ...
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35 views

Setup Parity PoA network compatible with truffle framework deployment mechanizm

The question from the title kind of wraps around the real problem but it is actually what I'm having trouble making work. I'm trying to setup production PoA network so using all the flags made for ...
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How to sync a new Parity node with an existing Geth node?

We want to spawn a new Parity node (for only read only operations) and have it sync data with an existing Geth Node (on a private chain)
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1answer
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How to deploy contract in parity-ethereum use json-rpc

I'm using atomic swap to exchange money in 2 private blockchain. I used json-rpc to create 2 private chain and created HTLC (Hash time lock contract) to exchange. But I don't know how to deploy ...
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Deploy contract in parity Ethereum

I'm a beginner about parity ethereum. I'm using atomic swap to exchange money in 2 private blockchain. I used json-rpc to create 2 private chain and created HTLC (Hash time lock contract) to exchange. ...
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Can a Parity node can connect into Clique Proof-of-Authority consensus engine?

I have setup private Proof-of-Authority consensus engine (also named clique) network with Geth. Can a Parity node connect into it? If yes, how? Parity-goerli does this for AuRa (Parity's Proof-of-...
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work network blocking connection to blockchain and peers

when I'm running a node using either geth or parity i face a problem. when I'm running it while at home everything works fine but when run it from my work's office network its doesn't connect to any ...
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1answer
36 views

Ethereum how to create account on parity hosted on Kovan network?

I have a parity node hosted on kovan network. How to create account using web3py? I used web3.personal.newAccount()=>which is giving error as no method found. What are the api's available for parity?
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How to test whether Javascript is IPC-connected to parity?

I want to check in JavaScript whether web3 is connected to a local parity (running the script with node). With RPC it works, with IPC it works only partially because it hangs instead of terminating. ...
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1answer
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Historical state in mainnet EVM

I would like to get a snapshot of EVM state on a certain block and then execute smart contract call actions against this state. Do Go Ethereum, Parity or any of other Ethereum clients provide ...
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1answer
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Using parity as Web3 provider running from a Docker container

I can't seem to be able to create a web3 (http) provider pointing to a parity node, running from a docker container. I create a repo which should reproduce the problem. After running docker-compose ...
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Parity Private Chain - see transcations [duplicate]

I am new to blockchains and I want to set up a test environment. Therefore, I created a parity development chain: First I created accounts: parity --chain=dev account new Then I launched the chain: ...
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1answer
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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 ...
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Try running MyCrypto with my local node! [closed]

i want connect my local parity nodes with Mycrypto i flowed this tutorial to built my two nodes https://wiki.parity.io/Demo-PoA-tutorial.html than i try to flow this tutorial to connect it to Mycrypto ...
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Parity consuming most of my CPU resources

I am having an issue with my Parity node consuming too much of my CPU and pushing the load average beyond permissible limits. One solution that I have is increasing the cores and memory, but before I ...
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1answer
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Query parity or geth to get total ethereum produced?

How do I query geth or parity to get the total coins ever mined/in circulation. On bitcoind or any other coin based on btc core source its easy to achieve with a command line. Something similar for ...
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1answer
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How can nodes fail

I am writing plans to support a parity blockchain cluster and need to determine guidelines for the DevOps team. What are the ways in which nodes can fail and back practice for handling these?
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1answer
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Try running MyCrypto with my local parity nodes?

i want connect my local parity nodes with Mycrypto i flowed this tutorial to built my two nodes https://wiki.parity.io/Demo-PoA-tutorial.html than i try to flow this tutorial to connect it to Mycrypto ...
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i cannt confirm request in Parity I Can't locate local key file asked by parity to sign a transaction

How to confirm request in Parity I have POA chain from this tutorial https://github.com/paritytech/parity-poa-tutorial and as you can see it ask me to select local key and click confirm
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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
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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 make the getTransactionReceipt call. I've noticed that when I create a w3 instance from web3.auto it ...
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1answer
38 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
81 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
26 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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How to create JSON file for an Rust Contract?

I'm trying to build my own Rust Contract. (I'm referring https://github.com/paritytech/pwasm-tutorial) But Json file is not creating and ABI is not generated. How can I fix this issue? Thanks in ...
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“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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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 ...