{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to configure the write-ahead log level (WAL level) for a blockchain database?","a":"First, understand the blockchain database system you are using, such  as Ethereum, Hyperledger, etc., and its default WAL level."}]}],"pr":"3761989dcaf7e95ed7c3a3fe335c359e34385a0b98722ba6987b0f5ac7c8c880"}