Questions tagged [collator]
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36 questions
0 votes
1 answer
65 views
How to start syncing a parachain collator with Kusama relay chain while a parathread of the Kusama Coretime parachain is onboarding
In the "Run Parachain Collator" section of the Polkadot Wiki here to use Agile Coretime with Parachains, it says "While the parachain is onboarding, start syncing the collator using the ...
- 2,376
1 vote
1 answer
106 views
What are the risks of panicking inside an extrinsic call?
Let's imagine the following extrinsic. #[pallet::call_index(1)] #[pallet::weight(T::WeightInfo::might_panic_extrinsic())] pub fn might_panic_extrinsic(origin: OriginFor<T>) -> DispatchResult {...
- 41
3 votes
0 answers
112 views
Proposals not getting processed, Consensus Issues on Rococo
Context: A parachain in Rococo is missing more block slots than I would expect it to at fairly random times. Version: Polkadot v0.9.42 Number of Collators: 3 Logging: (Perhaps I am missing the correct ...
- 433
2 votes
1 answer
64 views
Specific extrinsic stalls the parachain even though the collation is successfully produced
We have the weird case that extrinsics in general work, but there is a specific extrinsic that stalls the parachain. See https://github.com/integritee-network/parachain/issues/222. This extrinsic ...
- 161
4 votes
1 answer
171 views
The given validation code was rejected by the PVF pre-checking vote
I'm running a local relay for testing, which is all working great. The issue comes in when joining a parachain to the network - I can get as far as submitting an upload for the genesis state and WASM. ...
- 121
5 votes
1 answer
112 views
How many collators can a parachain have?
I think this should be split into 2 questions: How many total collators can a parachain have ? How many collators can collate at the same block height ? I suspect those number would be approximative ...
- 790
3 votes
2 answers
109 views
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 (...
- 549
2 votes
0 answers
129 views
Rococo collator running on aws eks fails and restart every few minutes
I have a rococo collator running on aws eks that keeps failing, here are the logs: 2023-04-23 01:49:19 [Parachain] 💤 Idle (0 peers), best: #0 (0x3865…1210), finalized #0 (0x3865…1210), ⬇ 0 ⬆ 0 ...
- 451
3 votes
1 answer
217 views
How to add a new collator key to a my parachain in a development setup?
I have a relay chain running with two validators. I wanted to connect a parachain with one collator node. I want to use my own key for the collator instead of using the predefined keys like //Alice ...
- 683
1 vote
2 answers
91 views
How to Start Parachain Node with disabled P2P?
Is there a way to start a parachain node in CI and instruct it through a binary flag not to sync with the relay chain? I think it would be the same to say I want the P2P functionality to be off. Thank ...
- 113
4 votes
0 answers
31 views
Inclusion of Collator In Parachain Lease
I understand that allocating a collator node (or a few) to each chain w/a Parachain slot per era is overkill from a trust perspective. However, from a developer's perspective, it would reduce a ...
- 41
1 vote
1 answer
90 views
Are there any incentives for collators?
Collators create PoV blocks and provide them with candidate blocks from the parachian to the relay chain. So they don't do any of the block authoring since this is done by the validators. But is there ...
- 554
1 vote
1 answer
274 views
Collator node starts failing to import blocks with "database" and "block has an unknown parent" errors after its been running for a while
I'm running collators for both kusama and polkadot network, and both started failing to import blocks after running for a while, these are the logs that I'm getting: 2022-12-13 22:49:39 [Relaychain] 💔...
- 451
0 votes
1 answer
99 views
Parachain recovery
Is it possible to recover a parachain from a backup that is around ~500 blocks behind the head block known by the relay chain? In single-chains, this is usually not difficult when you control all the ...
- 280
0 votes
1 answer
67 views
I can't purge all chains
I wanted to purge all chains, a relay chain with 3 validators and 2 parachains with 1 collator per each, so I removed all of their DB folders by using rm -rf command. E.g ; rm -rf /tmp/parachain rm -...
- 57