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Unanswered Questions

39 questions with no upvoted or accepted answers
14 votes
0 answers
94 views

Outbound network traffic linearly growing with offchain protocol and recommendations for handling traffic growth

Issue We are experiencing a behaviour on our standalone/parachain node where the Network Bps on our cloud provider linearly increases throughout the lifecycle of our protocol. The increase continues ...
5 votes
0 answers
49 views

Adhering to size limit of a block

We do track weight during block creation/block import, but weight only cares about execution time and with 2D weights also about storage proof size. We do keep track of size in propose here but only ...
3 votes
0 answers
25 views

Difficulty Storing Consensus-Derived Value in Storage: Observing Value in Pallet Log but Not in Storage

I'm trying to store a value obtained from the consensus, specifically sc_consensus_babe::fn import_block. While I can observe the value in the pallet through the log, it doesn't seem to be stored in ...
3 votes
0 answers
43 views

How to assign some number to the miners in POW substrate chain?

I'm working with POW substrate chain and I want to assign some number to the miners according to the work they have done earlier. Is it possible? If yes can we fetch those numbers during the block ...
3 votes
0 answers
38 views

Are justifications of finalized block canonical?

Justifications are external to the signed part of the Substrate block, meaning they change after block is produced initially. However, I'm wondering if there is any assumption in Substrate (or ...
3 votes
0 answers
100 views

sending an http request in unit tests?

I'm trying to arrange some unit tests for a local http server connectivity my node communicates with. While the node has no troubles while sending requests, I face difficulties trying to build basic ...
3 votes
0 answers
22 views

Offchain Storage lock vs compare-set/mutate function

While using offchain workers when do we want to use a StorageLock and when would we want to use a mutate function on StorageValueRef since both of them are kind of lock on db.
3 votes
0 answers
81 views

In need for "end of block" inherent

I'm working on a wrapped chain, inspired by frontier. We have a pallet, that contains a VM, that creates blocks that are pushed onto the outer block digest in the on_finalize hook. In our block header ...
3 votes
1 answer
321 views

How to implement a POC for a new consensus algorithm in substrate?

I am currently working on a substrate project that uses the PoA consensus algorithm. I would like to implement a POC for a new consensus algorithm. I have some experience with substrate but I'm new to ...
2 votes
0 answers
46 views

Proof-of-Work Substrate Chain with Multiple Validators

I'm working on a Proof-of-Work (POW) substrate chain. Assuming we have four validators, all of which have enabled on-chain workers (OCW), is it accurate to state that each validator's OCW fetches data ...
2 votes
0 answers
47 views

hybrid consensus

I try to implement the hybrid consensus from the substrate recipes book but it keeps failing. I tried to use the sha3 algorithm for PoW but I keep getting this error: "the trait PowAlgorithm<...
2 votes
0 answers
86 views

Switching from `Aura` to `Babe` consensus causes error "Incomplete block import pipeline" on genesis block

I am trying to switch from Aura to Babe consensus. After successful building and node start I am getting an error "Block import error: Incomplete block import pipeline.". This happens with ...
2 votes
0 answers
51 views

PoW custom consensus with remote calls

I'm trying to implement a new consensus in Substrate. The consensus is similar to PoW but requires querying other nodes to generate the work/proof. Would implementing the PowAlgorithm trait and ...
2 votes
0 answers
97 views

Using a substrate crate for a standard rust project

I just discovered substrate. I would like to use, as a dependency a substrate crate which uses sp_io and sp_runtime offchain feature. The naive code I wrote fails because of "Externalities" ...
2 votes
0 answers
41 views

How do pallet and consensus model/algorithm/infrastructure work together?

Hi guys I am new to blockchain and susbtrate, so these questions would be stupid to you...But I really need some help here... How does substrate ensure anything has been done inside the pallet will ...

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