Abstract: Disclosure method that includes traversing a user instance distribution of user instances of a user on hosts in a cluster to detect whether a trigger condition for user scheduling of adjustment of the user instance distribution is satisfied; migrating the user instance to be migrated out from the one or more hosts from which the user instances are to be migrated out to the one or more second hosts to which the one or more user instances are to be migrated in if the trigger condition for user scheduling is satisfied. The implementations of the present disclosure may schedule resources based on user instance distributions of users on hosts and achieve a balanced distribution of user instances. The implementations further avoid placing user instances of all users into a small number of hosts, increase the ability to prevent risks, and enhance the user experience.

Abstract: A method, apparatus and device for scheduling resources of a cluster comprising a plurality of hosts, each running at least one instance, including acquiring a resource parameter of the cluster; calculating the number of predicted hosts in the cluster according to the resource parameter; determining to-be-migrated hosts and target hosts from the current hosts in the cluster when the number of current hosts in the cluster is greater than the number of predicted hosts; and migrating instances running on the to-be-migrated host to the target host.

Abstract: Disclosure method that includes traversing a user instance distribution of user instances of a user on hosts in a cluster to detect whether a trigger condition for user scheduling of adjustment of the user instance distribution is satisfied; migrating the user instance to be migrated out from the one or more hosts from which the user instances are to be migrated out to the one or more second hosts to which the one or more user instances are to be migrated in if the trigger condition for user scheduling is satisfied. The implementations of the present disclosure may schedule resources based on user instance distributions of users on hosts and achieve a balanced distribution of user instances. The implementations further avoid placing user instances of all users into a small number of hosts, increase the ability to prevent risks, and enhance the user experience.

Abstract: A method, apparatus and device for scheduling resources of a cluster comprising a plurality of hosts, each running at least one instance, including acquiring a resource parameter of the cluster; calculating the number of predicted hosts in the cluster according to the resource parameter; determining to-be-migrated hosts and target hosts from the current hosts in the cluster when the number of current hosts in the cluster is greater than the number of predicted hosts; and migrating instances running on the to-be-migrated host to the target host.