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Questions tagged [recovery]

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How to properly execute a parachain backup and recover the chain state

I'm trying to execute a recovery from a manually stalled parachain. I'm doing the following, Backup the base-path folder for the block #30 Let the parachain produce more blocks, until #40 Brick the ...
Alexandre Ribeiro's user avatar
3 votes
0 answers

Recovering a Bricked (no block production) Parachain on Rococo, Kusama, & Polkadot

Introduction In the Substrate ecosystem, a bricked parachain – one that has halted block production – presents a unique set of challenges. This situation can occur in various environments, notably on ...
Cedric Decoster's user avatar
3 votes
2 answers

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

For standalone nodes we can revert chain using badBlocks on chainspec or by exporting the desired blocks and restarting network by reimporting them. But in case of parachains each block header is ...
lordofdalords's user avatar
0 votes
1 answer

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 ...
Rodrigo Quelhas's user avatar
4 votes
1 answer

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

I'm particularly interested in the role of backups and state stored on disk in the recovery process. In terms of preparations, we are early enough in our project lifecycle to put in place whatever ...
beyond-code's user avatar
2 votes
1 answer

Database rollback

Is there a command or an easy way to rollback the changes to a node's RocksDb to force the node to go back in its history and start fresh from previous block numbers? For example if the node has seen ...
Alex Sed's user avatar
  • 590
2 votes
1 answer

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

Goal To use a full snapshot at some block height of one chain and selectively pull in select parts of this state. Use cases Migrating state from another chain. Example: A snapshot of only assets ...
Nuke's user avatar
  • 1,842