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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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Trouble with Parity in android project

Android-studio does not recognise Parity.How can i import it to my project?
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Parity Mnemonic or Keyfile not compatible with MEW?

I'm on a new computer and I have 2 ETH addresses I created on parity in december 2017 and february 2018. Now I thought I followed the plan on what to do to secure the addresses but when I enter the 12 ...
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Parity synced at not existing block 4839212

I have problem with parity, cant get synchronization in archive mode to end, anything, changing arguments, max-, min-, snapshot-peers, parity verisions do not help. I have blockchain in archive mode ...
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Parity build error

mac os 10.14.4 CMake-3.14.4 was installed by running the bootstrap script in CMake-3.14.4 directory. then ran $ git clone https://github.com/paritytech/parity-ethereum $ cd parity-ethereum $ ...
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Parity 2.2.7 doesn't recognize “registrar” or “eip150Transition” in the genesis file

I am trying to run a Parity client and sync it with a Geth private blockchain. I was able to do it at first, but after adding "constantinopleBlock", "byzantiumBlock" and "petersburgBlock" to the ...
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What is the --force-sealing option in the parity for

Can someone please explain what the --force-sealing option is for? From the description I don't understand exactly what it's doing. I want to understand why it must be set if I want to get a pending ...
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Fetching block template from node

The most famous opensource pool uses eth_getBlockByNumber method with parameter "pending" to get block template and generate jobs from it. But now, in parity, I found that this parameter is deprecated ...
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25 views

parity initializing snapshot whole night

I have parity installed and synced. I went out of disk space. I moved the chain to bigger ssd. Then I started the parity service and let it run whole night. It did not finish. in log I can see ...
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Mirroring public Ethereum blockchain to a private chain

I am working on tokenised securities space. Our plan is to run tokenised securities on a public Ethereum blockchain. There is an operational risk that public blockchain becomes unavailable and ...
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How do I send 0.1 tokens from the Parity client to another address using a custom gas price and CLI only?

How do I send 0.1 tokens from the Parity client to another address using a custom gas price and CLI only? Hi, I want to send 0.1 tokens from my Parity client running on Ubuntu to another address. I ...
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12 views

Send ETH on Command Line with Parity

How do you send ETH on the command line with Parity? I am trying this on a node running Parity 2.4.5: curl -H "Content-Type: application/json" -X POST --data '{"jsonrpc":"2.0","method":"...
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Read data from parity .sst Files

I'm working on a c# application that reads the data from ethereum parity and parses it. As of present i managed to read the key value pairs from the files and convert them to hex. While looking at the ...
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Parity syncing in archive mode stuck at block 4839206

I am running Parity inside docker in pod in Kubernets on Google Cloud. The pod is using disk with 2700 GB for storing Ethereum blockchain, and currently disk has about 2100 GB free. Unfortunately for ...
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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
50 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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parity_pendingTransactions method return empty with parity light mode on ropsten testnet

I use parity with light mode and RPC call parity_pendingTransactions always return empty result. I'm using ropsten testnet network. How can I fix this problem ? here the example curl --data '{"...
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is it possible to run pending transactions on local node to see the outcome?

I am looking for a way to execute current pending transactions on local node, to see their outcome and log events, without really mine it. it is some kind of pre-simulation, to see what is going to ...
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Syncing parity light client fast on an embedded device?

I have a embedded device which is quite low in specs about 512mb of ram and 1ghz arm processor. I have installed a cross-compiled light parity-2.4.0. Now the problem is that it takes a lot of time ...
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Is there a call like listsinceblock bitcoin in ethereum?

i would like to record all the incoming transactions to my private network which is having so many ethereum accounts.is there any call to log them like listsinceblock in bitcoin.?
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Adding Recent EIP's to Custom Blockchain

I have a custom blockchain running on Parity 2.3.8. My question is do the recent EIP additions (https://coinswitch.co/news/ethereum-hard-fork-jan-19-know-everything-about-3-upcoming-eth-hard-forks) ...
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17 views

Ethereum parity high IO - slow response for getBalance

We have a strange problem with parity after our smart contract addresses are increased. There is a scheduled process to check for the transaction records and we have web3j calls to getBalance/...
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41 views

Accounts not getting the balance right

I'm trying to get the balance of a set of accounts using Parity RPC and web3.eth.getBalance. The problem is that, some accounts are returning 0 even though they have balance. For instance: https://...
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How do newHeads and event subscriptions behave on past reorgs?

Based on the geth documentation, I understand that a subscription on both newHeads and logs will emit all new heads and events that come from a reorg. However, I couldn't find what the behaviour is ...
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Parity node failing

I am trying to setup a dev parity node, but it is failing with the error, Loading config file from config.toml. Cannot create a file when that file already exists. (os error 183) My config.toml ...
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Parity: if I don't include --no-ancient-blocks will it download blocks all the way back to genesis (after the initial sync)?

In other words, if I have less than 1.5TB to play with, is --no-ancient-blocks essential?
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My parity node ran out of space- I have over 100GB free and am using warp-barrier. Is this normal?

Error message below. This doesn't seem right, I'm only downloading a little over 20k blocks (which is the whole point of warp barrier), how can this really need more than 100GB? Just to clarify, it ...
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Slow sync since Constantinople reason?

Noticed two days ago my live ETH node has not been able to keep up with the network. It is a fast VPS that always was fine until two days ago. Running 2.3.5-stable of Parity. Block generation is ...
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Subtraces of delegatecall in Parity trace

I'm investigating transactions using Parity trace which provides useful data over a transaction flow. Among this data is the Subtraces field which allows me to understand how many sub-calls each ...
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Is there a way to launch an in-memory Parity private chain?

Is there a way to launch a all-in-memory Parity private chain for purpose of, for example, unit testing?
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17 views

Parity UI Error Massage

Every time I close Parity UI it ends with this error message: (Parity-Ethereum v2.4.0-20190221 beta)
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1answer
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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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80 views

Syncing from hardcoded block in parity light client?

I need to sync my parity light client from a hardcoded block. I synced the light client fully in a Debian image and exported the hardcoded sync. I then pasted it in the chain spec file of a desired ...
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Maximum amount of TX per block

Yesterday we did a test. We launched around 1500 transactions simultaneously to our test private blockchain. They all went through perfectly, all at almost the same time (with correct and consecutive ...
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Changing chain specification

We have a private network with 10 nodes actually. It's been working for a couple months now. When we did it, we set up some parameters in the chain specification that are now too small for the growth ...
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127 views

Parity node is slow in syncing ethereum Ropsten net

I'm using a parity node for the purpose of checking transactions, address balances and generate new addresses via the RPC interface. I noticed lately that the balance of the addresses are not updated ...
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43 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 ...
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1answer
43 views

Substrate purge-chain expects a spec file

Working from a substrate-node-template generated with the tools at https://getsubstrate.io, I'm having trouble purging the chain. According to this tutorial, the command ./target/release/substrate-...
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Parity Ethereum service not working

I downloaded the 2.2.7 stable binary for Ubuntu from the Parity website. I set it up as a service, using the standard files. I changed nothing. However when I did; sudo systemctl start parity It did ...
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Difference of parity PoA between Validator Sets and Aura?

It seems there are two PoA consensus algorithms in parity PoA. What is the difference between Validator Sets and Aura?
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What's the difference between the Parity-Ethereum and the Parity client?

If you open https://etherscan.io/nodetracker you can see that the second most prevalent Ethereum client is Parity-Ethereum followed by Parity. What is the difference between these two client types?
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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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32 views

Unable to build parity from source on macOS

Just did a fresh clone from github and: cargo build --release --features final gives me a link error: = note: Undefined symbols for architecture x86_64: "_je_malloc_usable_size", ...
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218 views

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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101 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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1answer
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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 ...