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 connect to Rinkeby without using Geth / Parity?

First let me explain my development environment. I am using Jupyter Notebook to play around with the Web3.py front-end code and Remix for the Solidity smart contract code. I am using the Metamask ...
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Process address deposit from contract

Our service handles thousands (currently 10000+) of users and each user has his own Ethereum deposit address. To detect a new deposit we: Scan each block to get a list of transactions Get a list of ...
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Good source for TPS and transaction latency / finality for private Ethereum blockchains

I am looking for a good source / sources to compare TPS and transaction latency (How long it takes to send a transaction until it is mined) for different private blockchain solutions. Especially I am ...
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Sending ETH or Tokens from the command line to be integrated in a PHP script

I'm relatively new to using ETH on the command line. Do I use Geth or Parity? All I want to do is be able to send some ETH or Tokens from my eth private key. Which way is the best way to do it? I plan ...
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Parity doesn't send a notification to ethminer

I can't get the ethminer to work with my private network. I start the parity in stratum mode, passing my own config file as a parameter, and then launch the ethminer. He successfully logs in and ...
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Set up hardforks parameters in parity JSON chain spec file for private network

I want to set up a private network for tests using parity, which will function in the same way as the current mainnet, but with very low block mining complexity. Is Is it true that for this I need to ...
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Implications of IP change on boot node?

I have a private blockchain using Parity. One of the bootnodes may have to change the IP. What is the correct way to do this and what are the implications of this? This question implies questions ...
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Congestion tx not found in mempool

I have a parity node running and am watching the txpool for incoming tx's to a specific address. I need to catch the tx in the mempool. The node is in France and the tx's are sent from Ireland. All is ...
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How I can get parity logs for non-mainchain blocks?

There's no much info on how parity event log works. What happens to event logs that correspond to block which is not mainchain anymore? Are they unrecoverably lost? For such an occasion, is there any ...
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It is very slow to sync by parity in archive mode

I am syncing by parity in archive mode. tracing="on" pruning="archive" fat_db="on" Currently it is around 4,880,000 blocks but very slow, 0.2~0.8 blk/s. I am afraid it will take serveral months ...
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Parity version while running

I'm running a Parity node in a docker container. I've installed it with docker pull parity/parity:stable some time ago. How can I know which version of Parity I'm running? (without stopping the node)....
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How can I export/show private key on parity cli?

I did this command on parity parity --chain mainnet account new I got the address but, How can I export or see the private key?
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Validator Contract deployment

Hello When I try to deploy below contract i get this error Open new block failed with error Error(Engine(FailedSystemCall("Engine error (Failed to make system call: Bad jump destination 0)")), ...
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How does Geth query the blockchain?

This question has probably been already answered somewhere else but I didn't find anything on the internet so I'm asking here. I wonder how clients such as Geth query the blockchain to get specific ...
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Parity POA Smart Contract Method Always Fails

I have set up a private POA Network according to the tutorial from the parity homepage. I have two nodes running on localhost:8540 and localhost:8541. I have connected MetaMask to my first node and am ...
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What is txpool equivalent in Parity?

I'm aware of txpool module in Geth where it able to show how many transactions in the pending and queue state. How to get the same result in Parity node? The parity_alltransactions looks like ...
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Deploy contract to Parity dev chain using Remix

I'm trying to deploy a contract via remix to my local development chain. However, the transaction never gets mined and is pending forever. When I use a node script it works (at least I receive the ...
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“Method not found” when trying to parity_subscribe to eth_getFilterChanges

Parity Ethereum version: 2.5.1-beta, tested on 2.4.6 as well Operating system: Linux (Ubuntu) Installation: binary Fully synchronized: yes Network: ethereum Restarted: yes I'm using a websocket. I ...
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Rinkeby ethereum block stuck at 4321234

I'm trying to sync rinkeby using parity with patch to support rinkenby but now it's stuck at block 4321234. Does anyone have solution to pass that block without having to resync from the beginning? ...
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How to access Parity node's mempool with web3.py?

I'm running a Parity node with parity --jsonrpc-api all, then connecting to it in python3 with w3 = web3.Web3(web3.HTTPProvider('http://localhost:8545')). I can call print(w3.eth.getBlock('latest'))...
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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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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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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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160 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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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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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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What would be optimal number of block confirmation for Ethereum PoA network?

There are answers related to the number of confirmations is considered secure in Ethereum. @Waqar Lim To sum up, it always depends on your application and the attached value to consider which ...
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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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220 views

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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Parity UI Error Massage

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