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Questions tagged [polkadot]

Questions about the Polkadot Relay Chain

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Dockerized Substrate Chain Error

I am trying to build out a Docker container for a Substrate node chain, but I keep getting these errors that I am unable to rectify. here is the Dockerfile # Use the official Rust image as the base ...
dwulf's user avatar
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18 views

What is a minimal requirements for a Frontier Template based blockchain's network?

I'm trying to figure out what a minimal blockchain would look like using substrate's frontier node. What I'm trying to build: A public minimal blockchain network Aura consensus model EVM and Ethereum ...
tinnick's user avatar
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How do I check collators intent in polkadotjs/api like we check for validators?

I want to monitor the intent of my collators using @polkadotjs/api like I am monitoring for my validators using the below codes : async function checkValidatorIntent(url, validatorAddress) { try { ...
Salisu Bako's user avatar
1 vote
1 answer
38 views

Upgrade parachain collator binary from polkadot-sdk v0.9.29 to v1.1.0, failed to launch with error 'Invalid argument: column families not opened'

We're running a parachain on Polkadot Relaychain. The parachain collator binary is built based on polkadot-sdk v0.9.29 When we try to upgrade binary to a new version which is built based on polkadot-...
Brian Wu's user avatar
1 vote
1 answer
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Inherent extrinsic returned unexpected error: Execution aborted due to trap: wasm trap: wasm `unreachable` instruction executed'

Our parachain is running on the polkadot relaychain, when we upgrade the runtime, we're facing the following errors shown in the collator's logs: 2024-05-09 07:43:30.376 INFO tokio-runtime-worker ...
Brian Wu's user avatar
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44 views

Mitigating Single Point of Failure in a Distributed Blockchain Network Setup(Substrate & Polkadot)

We have deployed a blockchain network using five cloud machines distributed across various geographical locations, with each machine running a specific node type crucial for the network’s ...
Humayun Ahmad Rajib's user avatar
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1 answer
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how to create multising account using polkadot extrinsics?

I have been working with multsig wallets i am able to create account using polkadot ui and use it to sign transaction, but i am not able to create account using extrinsics can you please tell how to ...
Karanvir Singh's user avatar
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1 answer
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Trouble Registering Events in Substrate Tutorial's Frontend Transaction: Need Assistance

I'm a beginner following the Substrate tutorial from here. After successfully compiling both the Substrate node and frontend, I've encountered an issue. Problem: When I open the frontend and attempt ...
shivank anchal's user avatar
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55 views

paraValidator session keys requires read permission for non owner

Disclaimer: this topic is about manipulating session keys of a Polkadot validator, these operations are considered very risky for validators, do not try these unless you know 100% what you are doing. ...
bLd's user avatar
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How to store and mapped XCM message on relaychain

I want to send a message (including name, age, gender, etc.) from a parachain to a relay chain. Then, I want to store and map that data with the particular account number on relaychain. Can anyone ...
manish singh's user avatar
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How to add new collator to a running parachain at runtime?

I have a parachain with kusama as relay chain and it is live. I am looking for the right set of steps to add new collators to the running chain in runtime. The initial chainspec does not have any info ...
Mrigesh Patni's user avatar
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1 answer
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If the first ever reserve asset transfer from asset hub to a parachain is of an asset other than DOT it fails with LocalExecutionIncomplete

I've noticed that if the first ever reserve asset transfer from asset hub to a parachain is of an asset other than DOT it fails with LocalExecutionIncomplete, the chopsitcks logs don't show any output....
Sebastian's user avatar
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How can I manage the issue of excessive gas estimation in MetaMask when deploying a dapp contract on my WASM+EVM chain and calling its functions?

i am trying to deploy a dapp contract on my WASM + EVM based substrate chain but while calling the contract functions it gives me high gas estimation, how can i handle this issue?
Arunjot Singh's user avatar
1 vote
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24 views

What should be the proper XCM format?

I'm not sure if these are the right questions to ask, as I'm pretty new to the world of Cross-Consensus Messaging (XCM), but I'm really curious about how to properly create XCM instructions or an XCM ...
Noah's user avatar
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1 answer
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Implementing Load Balancing for Multiple Validator Nodes on AWS: Seeking Suggestions

I've set up two instances on AWS, each running a validator node for a blockchain project. Here’s a quick breakdown of my configuration: First Server: Runs a validator node and a reverse proxy. It's ...
Humayun Ahmad Rajib's user avatar
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23 views

Can't compose_call with call function limited_reserve_transfer_assets - python substrate interface?

This question relates to building the call_params for the compose_call function. I have the params for the rest correct, but have trouble building the assets attribute params? Here's a reference I ...
ConfusedSubstrateNoob's user avatar
1 vote
1 answer
38 views

XCM: messageQueue.Processed

I'm new to the world of Cross-Consensus Messaging (XCM). I'm trying to send an XCM message from Rococo AssetHub to Trappist to transfer funds from an asset that I've created on both chains, but I ...
Noah's user avatar
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How to send data from parachain to relaycahin

Hello everyone I am working on a project where I need to send some data or messages from my custom parachain to a custom relaychain, then I want to map with a particular account and store it on ...
manish singh's user avatar
1 vote
2 answers
34 views

How do I find out what caused a reserved balance, and what I should do to free it up

I have a reserved balance on my account of n DOT but I cannot remember what I did that would cause the amount to be reserved. Is there a way that I can discover the reason for the reservation, and ...
T9b's user avatar
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4 answers
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Superuser xcm origin being used on reserve asset transfer from asset hub to parachain

I'm testing a reserve asset transfer from polkadot asset hub to a parachain using chopsticks, the transfer is failing, I think this is because the xcm origin being used for the reserve asset transfer ...
Sebastian's user avatar
  • 411
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0 answers
12 views

How to debug memory usage by collator?

I was wondering what would be the best way to debug the memory usage by a collator? I started a new collator for an existing polkadot parachain, it is currently syncing and sometimes the memory spikes ...
Sebastian's user avatar
  • 411
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0 answers
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Unfortunately error when submitting transactions in polkadot

In my project when I submit the transaction I'm getting [error: polkadotxcm.filtered]
Preethi M's user avatar
1 vote
0 answers
9 views

GOV1 referendum voting giving error on 0.1x voting balance

I was making a small service for calling the aye and nye and it is not working for 0.1x voting balance but working fine for every other option it is giving error propsExtrinsic.signAndSend is not a ...
Shubham Gupta's user avatar
0 votes
2 answers
76 views

Unroutable Error when performing reserve asset transfer of DOT from parachain to asset hub

I'm getting an "Unroutable" Error when performing reserve asset transfer of DOT from parachain to polkadot asset hub. I have tested it on rococo using the same wasm for the parachain and I'm ...
Sebastian's user avatar
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0 votes
2 answers
21 views

Unable to connect to polkadot node running on wsl to polkadot js app

I am running polkadot-sdk on wsl I start the node: ./target/release/polkadot --dev and then when I try connecting it to polkadotjs app on browser in windows it doesn't connect It just says - "...
Rishi's user avatar
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1 answer
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How to transfer assets from parachain to relay chain

As I'm new to substrate and polkadot I don't know how to transfer assets from parachain to relay chain using xcm can anyone please help me to do this.
Preethi M's user avatar
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1 answer
33 views

I want to Send data to relaychain from parachain?

I want to send JSON or normal String Message from Parachain to relay chain but i new in the substrate and I am finding it difficult. I am using the Polkadot-sdk template for relaychain and substrate-...
manish singh's user avatar
1 vote
0 answers
16 views

Rpc call showing empty in evm integrated chain?

i have been working on polkadot layer 0 chain. i have integrated evm frontier on layer 0 chain and everything is working fine .when i try to call rpc (eth.getcode) it is showing empty . can some ...
Karanvir Singh's user avatar
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1 answer
24 views

What is the formula of calculating the era points in polkadot?

I've been delving into the era points system on Polkadot, but I'm encountering confusion regarding how the total points for validators are calculated. There are currently 297 active validators, and in ...
Arunjot Singh's user avatar
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0 answers
31 views

Rpc methods not decorated

Goal I'm trying to decorate the rpc methods to be able to interact with api.tx. If anyone has faced this issue, what has helped you out? Issue I'm not able to access tx method inside of api, which I ...
Peter Kim's user avatar
0 votes
0 answers
17 views

Get lock details from convictionVoting (even after deleting votes)

How can we see the lock duration for Referenda (convictionVoting) if the votes are deleted? On Polkadot and Kusama, if you delete your Referenda Votes it's not possible to see the details of the ...
DerekC's user avatar
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0 answers
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Error deploying to https://contracts-ui.substrate.io/instantiate

I wrote a smart contract ,it compliled but when deploying to https://contracts-ui.substrate.io/instantiate it doesn't deploy I get this error Invalid contract file format. Please upload the generated ...
Davy King's user avatar
0 votes
1 answer
25 views

Error while creating Vector

#![cfg_attr(not(feature = "std"), no_std, no_main)] // use ink_lang as ink; #[ink::contract] mod memory_game { use ink::{ prelude::vec::Vec }; #[ink(storage)] pub ...
Davy King's user avatar
2 votes
1 answer
55 views

How to run a `polkadot-dev` or `kusama-dev` node?

Since the removal of the polkadot and kusama runtimes from the polkadot-sdk, running one of those chains with -dev or -local runs a rococo node. How can I get a polkdadot-dev\-local or kusama-dev\...
Alberto Nicolas Penayo's user avatar
1 vote
0 answers
29 views

Facing problem in fetching all Preimages using rpc

At certain time, it shows this error.
Shiv Kumar ATR646's user avatar
0 votes
0 answers
9 views

Pallet compilations of collectibles workshop fails due to non-existing branch

On the first step after the prerequesites we are supposed to create a test pallet (https://docs.substrate.io/tutorials/collectibles-workshop/03-create-pallet/) ... for that we need to update the ...
user5196's user avatar
1 vote
0 answers
18 views

parachain not producing blocks?

I am using relay chain of polkadot with branch 1.1.0 of polkadot sdk. i have my relay chain running with era and epoch time of 2 minutes each . while changing lease period to 10 minutes and keeping ...
Karanvir Singh's user avatar
0 votes
1 answer
39 views

i need to find a faster way to load/show all my assets on Polakdot testnet Westend

I use Polakdot.js library to show all of my assets on the Westend testnet in my dapp. It takes around 5 seconds to load/show all my assets. For now it seems to me that this library doesn't have the ...
Nikola Grujičić's user avatar
2 votes
1 answer
98 views

Facing issue in connecting polkadot UI with nodes running on gcp [updated]

I'm running 3 validator nodes on different vm instances on gcp but I'm not able to connect these node with the polkadot UI. Here are the commands which I'm using to run the nodes: ./target/release/...
Deepak Chaudhary's user avatar
0 votes
1 answer
39 views

Where is the plain chain spec for kusama that i can use with a kusama runtime locally?

How to run polakdot/kusama runtime + node with a full functionality locally? what chain spec can I use? where the plan chain spec are located for just a ready to start for local env with 2 nodes? ...
rust.dev's user avatar
  • 519
1 vote
0 answers
26 views

how to know about token implementation?

I have a questions about Tokens in polkadot ecosystem , If I am on parachain and this parachain A uses a token from another parachain B , if this token implements on_transfer hook does this hook will ...
castle_chain's user avatar
1 vote
0 answers
52 views

how can i achieve 10000 tps in layer zero polkadot based chain

I have my blockchain deployed on production . i want some addition in my chain. i want my chain to have 10000 tps .How can i achieve that in my current layer0 chain without using multiple parachains ....
Karanvir Singh's user avatar
2 votes
1 answer
49 views

The necessity of bitfields in Polkadot, and potential replacement with threshold signatures

My question is related to the usage of bitfields in data availability system, described in https://spec.polkadot.network/chapter-anv. Polkadot uses bitfields to know if a relay-chain block is stored ...
Oguzhan Ersoy's user avatar
0 votes
0 answers
24 views

How to give a polkadot referendum Track the authority to mint an Asset on asset hub?

The goal is to give a polkadot referendum Track the authority to mint an Asset on asset hub. We want to avoid Root referendum because that requires 100,000 DOT decision deposit. We would like to ...
Ramsey - Decentration's user avatar
0 votes
1 answer
32 views

How to compose XCM call, which sends xcm message from a normal account on relay to a normal account on parachain(1000), and executes encoded call?

I am attempting to compose an XCM call that sends a message from the relay chain to AssetHub, from one normal account (on Rococo) to the same normal account (on AH), and then executes a call. Once it ...
Ramsey - Decentration's user avatar
1 vote
1 answer
55 views

How can i update polkadot js metadata from inside my app?

i need to check in my dapp when the metadata of my wallet is expired and show a popup telling the user that he needs to update his metadata by clicking an update button on that popup. i need to do ...
Nikola Grujičić's user avatar
1 vote
1 answer
74 views

Opening crowdloan for already running parachain with same ParaId

Previously, if a parachain wants to continue running and extend lease on Polkadot/Kusama, after winning first slot with crowdloan, it would need to perform direct bid or to get slot with different ...
NZT's user avatar
  • 23
0 votes
1 answer
49 views

I have an error while compiling the substrate node

I got this error after trying to install the substrate-contract-node : 1) I download rustc rustc --version rustc 1.75.0 (82e1608df 2023-12-21) 2) I cloned the repo I followed the instruction to ...
castle_chain's user avatar
2 votes
0 answers
34 views

how can we add external links on the proposal?

I have created a custom chain using Substrate version 0.9.36, and I've been using the governance module. When adding a proposal, there's a default column for external links set to "none." I ...
Gagandeep Dogra ATR594's user avatar
1 vote
0 answers
28 views

TXs in pendingExtrinsics() not always being picked up and then added in the block

When adding many batchAll TXs containing mint() and freeze() assets to AssetHub Rococo chain, there are times when TXs in rpc -> author -> pendingExtrinsics() just sit there and don't get ...
Ramsey - Decentration's user avatar

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