Is there a way to revalidate the blockchain without redownloading it?

[amanusk]

Is there a way to perform a re-validation of the blockchain without a complete removal and download? Similar to --reindex and/or --reindex-chainstate in the reference client?

Maybe by deleting some file?

Thanks

[stevenroose]

What scenario do you have in mind for this feature?

[amanusk]

My understanding is that the reference client has this option for a case that the state was saved incorrectly or somehow got corrupted. I don't see a reason why this could not happen in this implementation (please correct me if I am wrong).

(By the way, the state is not saved in some separate directory right? Everything is saved in blocks_ffldb, both blocks data and state data?)

So currently this is not possible? Does running -txindex validate blocks?

Thanks,

[stevenroose]

@amanusk Actually, while working on the gRPC server, I noticed there is a verifychain RPC method that might do exactly what you want. I haven't ported it to gRPC because I was not sure if it made sense. I mean, calling that method could take a week to complete, which is kinda strange, right?

[amanusk]

@stevenroose Thanks for pointing this out. I'll look into it and see if this covers my needs.