Is the default wallet must?

Question

I am creating multiple node setup. When started to build EOS environment, this is one of the step https://developers.eos.io/welcome/latest/getting-started/development-environment/create-development-wallet in documentation.

My first question is, do we need to create default wallet always whether it is for production setup or local development?

I created genesis node, in which producer is eosio, I have created wallet other than default, and provide signature provider key as newly generated keys. When I run blockchain its showing logs as:

error 2020-11-06T04:23:49.500 nodeos    producer_plugin.cpp:1393      start_block          ] Not producing block because I don't have any private keys relevant to authority: [0,{"threshold":1,"keys":[{"key":"EOS4v99brHWC5vc9Dsk4fvD9ZDhk8sfAnAqg5os51G8rJpDxknmr6","weight":1}]}]

Do I need to create default wallet and import keys in it to resolve this error?

Second question:

As per my understanding, the genesis node block producer should be eosio and generate other producer accounts for other nodes. Am I correct? Is it must to create a new block producer account for each node?

Please guide.

Edit: The above error was generated because the initial_key in genesis.json was different than the genesis node key.

Answer 1

No, you don't need to create a wallet for each node. It does not communicate with wallet at all.

You should set producer-name and signature-provider options for each block producing node. You need to create an account with the producer-name and set a pair of private and public key for sigining produced block. These keys don't need to same to those of owner or active permission, but when you register block producer by eosio::regproducer, you should call it with the key provided by signature-provider option.