A method for performing remote debugging in a cloud system comprises the steps of: receiving a remote debugging request during a remote debugging session; determining, according to an isolation level of the remote debugging request, a server node from a plurality of server nodes in the cloud system for performing the remote debugging, wherein the isolation level of the remote debugging request comprises at least one of: an exclusive level and a sharing level; and in response to determining the server node, forwarding the remote debugging request to the server node.