Snapshot Tool

[mvandeberg]

The snapshot tool needs to capture existing accounts and witnesses.

From the accounts, the only fields we care about are:

name
json_metadata
posting
memo_key

For witnesses, the only fields we care about are:

owner

Other field are either populated by the blockchain, or will be replaced during conversion to the testnet.

The script also needs a list of the top 30 witnesses. While we only need 21 for block production, we will vote for 30 because that is the maximum number of witness votes allowed and will maximize the number of witnesses that can easily participate in the test net.

The output of this should be an array of accounts and an array of witnesses, either as a JSON formatted string, or in the native array/object format of the scripting environment.

[theoreticalbts]

The tinman snapshot command's purpose is to create a JSON blob of all the information from mainnet that goes into creating the testnet's fastgen transactions.

Currently tinman snapshot includes all account data returned by the API for all accounts, and DGPO.

What you're suggesting is that tinman snapshot also include data about the witnesses, and filter some of the unneeded data from accounts.

IMHO filtering fields is a non-goal right now. It doesn't matter if the snapshot's a little bigger than it needs to be, it will probably never escape the machine it's generated on.

So I'd say just have tinman snapshot dump all the witness data as well and let txgen decide what it does / doesn't want.

Also, this might be different depending on whether you want a type (a) or type (b) testnet #22.

[theoreticalbts]

To clarify, the only thing that needs to be done for this ticket is witness data needs to be added to tinman snapshot.