{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to solve the problem of nodes running out of space?","a":"Data migration: Move some data from the current node to other nodes or storage devices to free up space. This can be done while ensuring minimal impact on system performance and  data accessibility."}]}],"pr":"1556e6a68183a9e570b3fe387bf4b7e02e5595f676027e32f4c8ef1cef3845df"}