{"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":"In the configuration file, search for  or add configuration items related to the WAL level. For example, in Ethereum, you can..."}]}],"pr":"dec9dde913e90186c1ad4940f376632fcb7ebb370eee6e5faa83b8ca2022fd7c"}