Questions tagged [relay-chain]
The relay-chain tag has no usage guidance.
94
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How do I modify the chain spec for a local relay chain to have an additional relay chain validator? (I already have two: Alice and Bob)
I am referring this documentation on preparing a local relay chain in which they have provided a plain sample relay chain spec. Also, I have cloned this release locally. The documentation says that
...
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Designing a Mechanism to Improve the Efficiency of Applications Deployed on Parachains?
As I was going through the mechanism of working of parachains , I came across a scenario that currently the time taken from collator producing a block on a parachain, to that block becoming finalised, ...
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RPC node is rebooting itself from time to time
Node is working correct but there is a moment that shows the following error messages and reboots:
2023-10-12 19:39:26 Accepting new connection 170/10000
2023-10-12 19:39:26 Accepting new connection ...
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Incorrect transaction fee estimation when payout
I have been working on payout in my L0 relay chain blockchain .While making payout I have observed the transaction fee that is deducted from my account and the actual fee that is been deducted are ...
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What version of polkadot relaychain and substrate-parachain-template can be used?
I am following this tutorial:
https://docs.substrate.io/tutorials/build-a-parachain/prepare-a-local-relay-chain/
While downloading the source code for relaychain I encountered the error:
"fatal: ...
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57
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can't start test network using zombienet-macos
I am using polkadot from polkadot-sdk github repo and from this article to Simulate parachains in a test network, it says to checkout latest release of polkadot which might be git checkout release-v1....
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RelaychainwithChainbridge
We have tried to connect my relay chain with Chainbridge, but I got errors (SUB to ETH and ETH to SUB). I could not replace the existing relay chain with my relay chain. Please let me know the ...
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How a parachain will connect to polkadot relaychain when the hundred parachain limit is reached?
There is a limitation of polkadot, such that a total of 100 slots for parachains. I have following questions:
How many slots are auctioned till date?
How a parachain will connect to polkadot ...
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2
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28
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Rococo Slot Request problem on adding file
When requesting Rococo slots here, there are two options:
Upload your Genesis Head (genesis state) - Do not submit a compressed
file.
Upload your Validation Code (genesis runtime Wasm) - Do not
...
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Thread 'main' panicked at 'Validator in session 1 missing keys!'
Now I am acquiring testnet slots in rococo, In modify-the-chain-specification-file steps 5, it says Add the public key for your account to the session keys section. I added like this,
but while ...
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Error with block built on Import failed: Unexpected epoch change
I am using release-v1.0.0 of polkadot. I am going through this tutorial and running two relay chain node but got this error,
Error with block built on ...
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129
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unexpected argument '--ws-port' found
I am preparing local relay chain from this tutorial. Configure polkadot and added raw-local-chainspec.json file but while running first validator, it gives this error.
ganesholi@Ganeshs-MacBook-Air ...
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Is it possible to start a parachain from block number greater than 1?
Basically I am asking if we can slot in an existing parachain that has been running for sometime, so has a few hundred blocks into a relay chain like kusama/polkadot. I know the relay chain requires ...
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How do you EOL/wind up/shutdown a relay chain and parachain?
Is there any documentation on how to gracefully and securely wind up a relay, parallel or on-demand (aka parathreads) chain?
Here the chain(s) are in the wild/live/production. They could be either ...
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64
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Failed to Decode Error?
I was trying to transfer nft from relay chain to parachain through transact instruction of Xcm.
Here is snippet of code I am using
Xcm(vec
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50
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Getting error while biding in relaychain for adding my parachain into relay-chain
I'm trying to connect my parachain to a relay-chain locally via auction.
I bid in the auction and set the auction ending period to 2 minutes,
The bidding process is done but after the bidding I got ...
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1002: Verification Error: Runtime error: Execution failed: Execution aborted due to trap: wasm trap: wasm `unreachable`
I've added pallet-nft and pallet-uniques in Relay Chain. All the things are working fine but when I'm signing the transaction in the pallet-uniques fn create(collection,admin), it is showing me this ...
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92
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Upgrade parachain without sudo
I have a parachain with no sudo pallet. However, in order to perform an upgrade, the first step authorize requires Root origin.
As a workaround, I have tried to run ForceScheduleCodeUpgrade from the ...
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48
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Error- Connecting Parachain to Relay Chain: Unsupported or Invalid BabeApi Version
I have already run a relay chain on two ports, but when I try to connect my parachain to the relay chain, I encounter the following error. I have attached a screenshot of the error to this message.
I ...
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Other: IO error: lock hold by current process, acquire time 1685847508 acquiring thread 196910: /tmp/chains/dev/frontier/db/LOCK: No locks available
I'm adding EVM compatibility to relay chain whie doing so I faced this error after running my blockchain.
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the trait bound `<RuntimeApi as ConstructRuntimeApi<sp_runtime::generic::Block<, OpaqueExtrinsic>>` is not satisfied
`the trait bound` `<RuntimeApi as ConstructRuntimeApi<sp_runtime::generic::Block<sp_runtime::generic::Header<u32, BlakeTwo256>, OpaqueExtrinsic>, sc_service::client::client::Client&...
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How polkadot open their slot for auction?
I was make a private network in relay-chain and parachain and connected parachain into relay chain through sudo assign slot pallet & slot locally.
but i want to add my parachain into relay-chain ...
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How to connect to Polkadot Relay-Chain through the code of moonbeam parachain?
I want to connect polkadot relay chain but i'm not able to select keys for the customSpec generated by the binary of Moonbeam-Parachain. The customSpec is this->
{
"name": &...
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37
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What happens when parachain is waiting for slot?
Is there a way to produce and finalize blocks when a parachain is waiting for a slot on polkadot. Lets consider a scenario where there is a parachain who has applied for the slot on polkadot but did ...
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How to configure polkadot + parachain locally to validate parachain block each 6 sec?
I want to spin up parachain LOCALLY faster. each 6 sec.
How to configure polkadot with parachain?
I have seen this and this
and this post
So my zombienet contains
polkadot(obviusly😊)
and two ...
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238
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(Parachain) cannot create a runtime error=Other("cannot deserialize module: unknown Opcode(192)")
I was following the substrate SDK official documentation for building a parachain on the Polkadot blockchain, and in the connect a local parachain tutorial(https://docs.substrate.io/tutorials/build-a-...
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How much do relaychain node hardware requirements dictate the parachain collator hardware requirements?
Cumulus ties the parachain and the relaychain together, allowing to exchange essential information necessary for the block production of the parachain. Since a parachain collator must build a block (...
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the trait `From<xcm::v3::NetworkId>` is not implemented for `AccountId`
I was making a new way to add sovereign accounts for a particular Network ID. Like in this https://github.com/paritytech/polkadot/blob/HEAD/xcm/xcm-builder/src/location_conversion.rs
pub struct ...
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How to create a Polkadot chain spec for development purposes?
I want to setup my own custom Relay chain for development purposes.
Is there a way to generate a local chain spec for Polkadot (Rococo) something like this:
./target/release/polkadot build-spec --...
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1010: Invalid Transaction: Transaction has a bad signature
I am getting this error on the block explorer "Extrinsics" tab the moment I add a debug related code into a Hello pallet into the node-template repo.
E.g:
#[pallet::call_index(0)]
#[pallet::...
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54
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Horizontally scaling one chain
Is it possible to combine a relay chain with several compatible parachains to create one single logical chain with shared account balances?
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cannot bind unix socket: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } error
I'm getting the following error while running rococo alice validator node in kubernetes cluster:
cannot bind unix socket: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system&...
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Send upward message to unlock parachain
After PR5451, it is possible to "unlock" parachain so that the state can be set by the parachain account on relaychain. But its unclear how to send this message from the parachain to ...
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Can we migrate the existing solo chain blocks to another substrate chain?
I've been working on data migration from the existing solo chain to the Relay Chain. I've already fetched most of the data but i need to know about fetching the blocks. Is there any way to fetch the ...
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31
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Error generating Raw Chainspec from Plain Chainspec in Substrate
I am trying to generate raw chain spec from plain chain spec, but it won't let me:
✗ ./target/release/node-template build-spec --chain plain-local-chainspec.json --raw > chain-spec.json
Error: ...
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How to migrate data from Solo to Relay Chain?
I'm trying to migrate data from one existing solo chain to relay chain. How should I achieve it?
I`m taking ideas from Centrifuse chain which is migrating accounts and their balances, proxy,and ...
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What is the purpose of Sovereign account? How is the balance of Soverign for a Parachain decided or calculated?
I think that balance of Sovereign account on Relay chain should be total token supply for that parachain?
Basically what's the relation between soverign account balance and parachain?
How does it ...
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76
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Command to insert keys in Polkadot Relay Chain and Parachain for Custom Validators in ChainSpec?
I have the keys separate in a file. I don't want to insert keys for polkadot js app for each node running the relay chain. Same for collator for parachain.
What is command to insert keys through CLI?
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How to get PeerID or local node identity in bash script to enable running other node using it as bootnode in a command in script?
I want to write a script that runs node01, node02, node03 in relay chain network setup.
How do I get local node identity generated from running node 01?
Also I am confused on how the first validator ...
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Collation wasn't advertised to any validator. version: polkadot-v0.9.36
When i am start running my parachain i am getting this issue Collation wasn't advertised to any validator.
During this issue the parachain cannot produce and block also.
Please help me if you have ...
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What should be ideal hardware specifications for a Parachain?
We are working on a parachain and planning to integrate with Polkadot relay chain.
When we deployed our parachain on testnet and tried to integrate with Rococo, we realised that less than 500 GB and 8 ...
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In custom Rococo staging and Westend staging network parachain is not producing blocks
I have made the rococo relay chain and parachain network successfully following this tutorial, and was also able to generate the network with custom keys on relay chain and parachain with rococo-local ...
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108
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Xcm V2Traits Error UntrustedTeleportLocation
When I'm sending assets from relay chain to a parachain by using Limited Teleport assets. I`m facing this issue
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What reference hardware can a parachain use to benchmark & generate weights?
The 2022 tracking issue for Substrate benchmarks mentions that Polkadot uses this reference hardware of this specification to generate weights:
Reference Hardware
The transaction weights in Polkadot ...
Nuke♦
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Transfer Assets with XCM
We have successfully created the HRMP channel between two parachains and a relay chain.We want to transfer assets from one parachain(p1) to another parachain(P2), the channel is created from P1 to P2 (...
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Para header not found after moving to another relay chain
In one of our testnets, we moved the parachain (:= P) to another relay chain (:= R). Unfortunately, we have not been able to produce blocks after moving over. I think to have overseen/misinterpreted a ...
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Error while generating polkadot relay chain specs
I am using following link to run polkadot relay chain and connect substrate parachain node with it as parachain.
https://docs.substrate.io/tutorials/connect-relay-and-parachains/prepare-a-local-relay-...
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Get sender accountid when transfering assets from relaychain to parachain
I have a local rococo relay chain and my own parachain.
For AssetTransactor type of xcm_executor I use my own implementation of TransactAsset trait.
When I send tokens from relaychain to parachain ...
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