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2 votes
Accepted

Parachain recovery

From what I understand you have a stalled parachain, maybe not event running ? From which you kept a db backup. If that is the scenario you should be able to launch your para with that backup. ...
Alejandro Martínez's user avatar
2 votes

How do I recover quickly if the number of healthy nodes for my parachain reaches zero?

Even though most of the answers depend on the exact configuration of the systems being run. I feel I can give you a few pointers here. Backups / snapshots. They are the key to ensure access to the ...
Alejandro Martínez's user avatar
2 votes

Database rollback

It depends. If block n is finalized which is the most possible case, then there's no easy way to achieve this goal. You can only fork this chain, and start a new chain. You can fork in the following ...
ironman_ch_parami's user avatar
1 vote
Accepted

Is it possible to revert a para chain to previous block?

No, there is no way to revert a parachain block that was accepted by the relay chain. I mean you can revert the block locally in your database, but that will not revert anything in the relay chain.
bkchr's user avatar
  • 11.6k
1 vote

Is it possible to revert a para chain to previous block?

If blocks between current block and your revert target block are all pending, you can do it. But if not, I think there's no way to achieve that.
ironman_ch_parami's user avatar
1 vote
Accepted

How to selectively populate state from a snapshot of one chain onto another?

If you read the code for fork-off-substrate, you will see that it ultimately collects a list of "module prefixes", and then queries storage using that list. Right now it collects a list of ...
Shawn Tabrizi's user avatar
  • 16.1k

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