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Questions tagged [session]

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3 votes
1 answer
36 views

chain stop producing block after adding pallet-session

I'm working on the pow substrate chain with grandpa. For that I integrate the pallet-session and substrate-validator-set[https://github.com/gautamdhameja/substrate-validator-set/tree/master] to join ...
Deepak Chaudhary's user avatar
0 votes
1 answer
88 views

Solochain mainnet experiencing problems finalizing blocks after a few months

We are operating a custom Solochain NPOS blockchain with Substrate. After running a stable testnet for months, we promoted to mainnet version 1. Initially the mainnet was operating normally, with ...
Lucas Cardeal's user avatar
1 vote
0 answers
18 views

Which one is ExternalTrigger in BABE?

in this document it mentioned ExternalTrigger. So which pallet could be ExternalTrigger for BABE. and How to implement EpochChangeTrigger? It also said that pallet-session could be used, but pallet-...
MinhK's user avatar
  • 125
0 votes
1 answer
93 views

setting up pallet_session genesis keys in running chain

I am running a solo chain with Genesis authorities set up for AURA and GRANPA. Now I have to add new validators and for that, I am planning to add substrate_validator_set and pallet_session. During ...
Faraz Ahmad's user avatar
1 vote
1 answer
54 views

subxt: How to submit pallet_session::set_keys() extrinsic?

I have generated the session keys using the author.rotateKeys() RPC call. The keys are of type Vec<u8> and the length is 128 bytes. I am trying to call the set_keys() method from pallet_session ...
akhil nichenametla's user avatar
3 votes
1 answer
49 views

Error in integration of pallet-session in chain-spec

I'm trying to add parachain-staking pallet in the solochain which is based on POA with Aura. For that I need to integrate pallet session but in the integrating of pallet-session in chain spec I'm ...
Deepak Chaudhary's user avatar
1 vote
1 answer
60 views

Way to force a new Session when using pallet_session?

There are likely reasons for this, but I'm not sure what they are yet. In a parachain using pallet_session, is there a way for sudo/root/governance to force a session to rotate faster/cut a session ...
Wil W's user avatar
  • 433
2 votes
1 answer
110 views

How to get the current session keys used by an active validator?

There are api.query.session.nextKeys and api.query.session.queuedKeys for obtaining the next session keys for a validator (doc). But how do I query the current the session keys used by an active ...
btwiuse's user avatar
  • 291
1 vote
1 answer
91 views

Getting Error when i push session keys session.NoAssociatedValidatorId

I'm getting the error session.NoAssociatedValidatorId while inserting session keys, Although my Explorer is connect to same explorer and Keys are generated by using RPC->RotateKeys(). Any sort of ...
BlockBird's user avatar
2 votes
2 answers
45 views

How to query the waiting validators in past eras?

Getting the current active validators could be done. Also getting the past Active validators also can be queried using EraStakers in staking pallet. How to query waiting validators by Era Index?
Immanuel John's user avatar
3 votes
0 answers
51 views

Unified Accounts [closed]

We have followed the comets of moonBeam and implemented Unified Accounts. Now we're facing issues while adding session keys for aura, grandpa and I'm online. we're using this method for Aura and ...
BlockBird's user avatar
1 vote
0 answers
60 views

After skipping epoch, not able to perform any extrinsic

I bump into Session changes on reversion question and tried out the solution given by @bkchr, there was no unexpected epoch change error after an epoch is skipped due to finalisation getting stopped. ...
Shubham Gupta's user avatar
4 votes
1 answer
51 views

Custom session keys in Chainspec for Mainnet config

I've seen some Substrate repo's where the SessionKeys (Aura, Babe, Grandpa, etc) are used with unchecked_into() .While the stash/controller keys are only used with into(). These are some examples: ...
Discardo's user avatar
  • 436
3 votes
1 answer
296 views

What happens in epoch of a blockchain?

I have been working on a substrate blockchain. I want to know about the events and process happening in each epoch of blockchain and what are the concepts behind the epoch?
Karanvir Singh's user avatar
2 votes
0 answers
77 views

Offence reported by ImOnline pallet for running nodes

I'm playing around with a custom hybrid PoW/PoA block production mechanism based on sp_consensus_pow import queue. As the PoW results are generated outside of Substrate, a trusted authority node set ...
Yury Yukhananov's user avatar

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