Did not finalize blocks in sequential order.

[elshan-eth]

Hi

I restarted kusama node and next launch I had the error: Did not finalize blocks in sequential order.

[bkchr]

CC @andresilva

[andresilva]

Can you provide some more details about how you did the initial sync? Were you using the default options for everything (i.e. polkadot --chain kusama?).

[elshan-eth]

I used: polkadot --name "kusama node" --chain kusama --listen-addr /ip4/0.0.0.0/tcp/5050/ws --sync Fast --rpc-cors all

[andresilva]

This is almost certainly caused by the usage of fast sync (which is still a relatively new feature). I suppose you don't have any logs for this (just the generic default logs won't provide enough info to figure it out), so we'll need to replicate this on our side.

cc @arkpar

[arkpar]

Fast sync is only allowed on a clean start with an empty database. Otherwise the node should print a message and fall back to full sync. Furthermore it won't work on kusama until paritytech/substrate#9239 is merged.

[elshan-eth]

Thank you!

[bkchr]

@CryptoBadBoy I assume this can be closed then?