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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Performance Analysis of Ethereum Clients Geth and Parity

I want to do performance analysis of Geth and Parity. I want to run 1000 transactions serially on each client and want to get transaction processing time for each transaction. How can i get these ...
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How to get list of all transactions on all accunts in parity wallet [duplicate]

I'm looking for simplest way how to get list of all transactions(incoming, outgoing, external, internal, confirmed, unconfirmed) on all accounts created in parity wallet. The listing should support ...
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Drawbacks Query Logs of Parity Node in Fast Mode

We need to query all the past transfer events of a contract to identify all historic token holder addresses. Am I right that for this we need a full node and can't use fast mode? I've read that fast ...
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Old version of Parity stopped working and I'm unable to install new stable version

I have parity 1.6.8 installed on OSX 10.13.6 Parity used to work by running to .app file and then accessing http://127.0.0.1:8180/#/home on a web browser. Now it tells me, "Unable to make a ...
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Parity json.ipc file permissions

How can I give permission for another non-priv user on the same server to get Read/Write access /home/parity/.local/share/io.parity.ethereum/json.ipc and have that access available on reboot? The ....
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Debug Parity and ethminer

I can not mine on a private blockchain using parity in stratum mode and ethminer. Parity Ethereum version: 2.1.9 ethminer: 0.16 Operating system: Ubuntu 18.04 Here is the output from ethminer: m ...
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Parity --unlock throws error

When launching Parity UI with --unlock and --password I get this error No valid password to unlock account 0x00e4…fb21. Make sure valid password is present in files passed using --password or in ...
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236 views

What's the difference between 'type' and 'callType' in parity trace?

For the parity node, the response for getting the transaction trace contain "callType" and "type" which are all "call". But for geth node we only get 'type':'Call'. So I am confused, whats the ...
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parity json RPC eth_getBalance timeout on light mode

I have timeout problem with eth_getBalance on light mode enable on parity json-rpc. I have no problem with light mode disabled. Here my command on parity parity --chain ropsten --jsonrpc-apis all -...
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How do consensus vulnerabilities occur when parity nodes do not mien?

While familiarizing myself with Ethereum, I found multiple security alerts referring to consensus issues, most notable those that arose because the geth and the parity client handled certain edge ...
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Running 'parity account new' - is the generated account suitable for all networks (mainnet, ropsten, kovan, etc)?

From a command line, I run parity account new. I am then asked to enter a password (twice), and an account-address is printed. In addition to that, a JSON file is created. Finally, I use this ...
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How can obtain the value of erc20 token in transaction? [duplicate]

i want to get the token's transferring value like this: https://etherscan.io/address/0x27054b13b1b798b345b591a4d22e6562d47ea75a#tokentxns How can obtain the value of erc20 token in transaction? https:...
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how do I know which node picks up my transaction? in general, how is a node assigned to broadcast a specific transaction?

How do I know what node is broadcasting my transaction to the network? how can i get more information about this node? for example, how do i know if the node is a geth or parity node? does it matter?
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Parity node mysteriously shutting down by itself

I noticed that my Parity node keeps shutting down by itself every 15 minutes or so. I am running it using this command: /usr/bin/parity --jsonrpc-interface=all --jsonrpc-port=8545 --log-file=/root/...
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Does lowering the share difficulty allows me to find more blocks?

Lets assume that I've a very powerful server with very fast internet connection (32GB RAM, 4GBit/s upload and download) which runs MiningCore and Parity for private mining. Does decreasing the Share ...
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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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Can anyone explain what's the difference between mist/geth/parity in simple terms?

What's the difference between geth/mist/parity?
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What happens with transaction after the block fork?

Do I need to generate transaction again after fork? How many confirmations are minimal to be sure of the transaction?
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275 views

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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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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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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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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224 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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216 views

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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192 views

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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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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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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178 views

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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201 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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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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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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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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230 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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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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157 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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259 views

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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183 views

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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329 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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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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312 views

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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55 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 ...
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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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42 views

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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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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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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461 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 ...