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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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How to find all Ethereum nodes and list it?

Hi is that possible to find eth nodes and list it with some details? I want to do some metrics and service like ether nodes. they dont have an API.
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Estimate gas limit without eth_estimateGas method

POA Network (Ethereum Like) blockchain has eth_estimateGas to estimate gas limit but this method does not work in POA Network Sokol (Testnet) blockchain. When i call this method it gives response: { ...
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What do I do about my Ether since the 2019 Constantinople upgrade has been postponed?

With the last minute postponement of the 2019 Constantinople upgrade. What do I do about my stored Ether? And what software do I need to upgrade to if I am running Geth or Parity?
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Really slow syncing on mainnet with SSD disk and archive mode

I've set up a full Parity Ethereum node connected to the main network on a server with 2TB SSD, 4 CPUs and 8GB memory. I've set the pruning mode to archive since my application does a lot of state ...
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Issue in understanding Crowsale in the ICO contract

I want to create a token and run an ICO but all this without the function of crowdsale and minting. It want it to be a token which has a strict initial suplly (exmpl 1M) and without the funtion of ...
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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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46 views

What are the benefits of ethereum 'archive' sync mode and who should use it?

We have set up a private Ethereum node for our blockchain application connected to the mainnet. The node runs on a server with 2TB SSD, 4 CPU and 6GB memory. It's been syncing for about a week and is ...
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31 views

How an Ethereum Node stores data?

How an Ethereum client stores the blockchain data in the disk? I know two of the major Ethereum clients is go-ethereum and parity, so I'm also asking if they store data in a different way or if there ...
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18 views

run multiple parity clients in parallel

How can I run multiple parity instances on one machine? With geth it's easy. I just have to set different --port numbers. What's the equivalent for parity? I want to recreate Afris scenario.
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Syncing events history for specific addresses, possible?

I am writing software that needs the full history of events but I only need it for a certain contract address, which I would guess is a very common use case for app developers. Is there a way I can ...
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How to let parity EVM execute just some blocks from a state?

I want to do an experiment using mainchain data. The experiment aims to test EVM performance. So, I want to let EVM execute some blocks and measure the performance. Are there some tools that can be ...
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22 views

Allow remote RPC to Ethereum parity node

I have a fully synchronized Parity Ethereum node running on Ubuntu 16 I tried to find a straight answer on how to enable the node to accepts remote RPC calls from a specific client but could not find ...
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41 views

How to Change Ethereum to Other Names

I used parity to deploy my private chain, I want to change "ethereum" to "abc", what should I do? In my Genesis file, i modified a parameter called subprotocolName, but i used MetaMask to test ...
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35 views

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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49 views

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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31 views

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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19 views

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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50 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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37 views

Does lowering the share difficulty alows me to find more blocks?

Lets asume 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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1answer
109 views

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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1answer
85 views

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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121 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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84 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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56 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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53 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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124 views

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
38 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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1answer
84 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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19 views

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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62 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
62 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:...