Adjusting virtual machine migration plans based on alert conditions related to future migrations

A computer system for facilitating migration of virtual machines within a computing environment, said computer system comprising:

• a memory;
• and
• a processor in communication with the memory, wherein the computer system is configured to perform a method, said method comprising:
• obtaining, by the processor, a current state of the computing environment, the current state including a current virtual machine-to-host mapping identifying a plurality of virtual machines executing in the current state, the current virtual machine-to-host mapping indicating the plurality of virtual machines currently on a plurality of hosts;
• obtaining, by the processor, a plurality of future virtual machine-to-host mappings, wherein a future virtual machine-to-host mapping identifies one or more virtual machines to be executed on one or more hosts in a future state of the computing environment;
• obtaining, by the processor, a current migration plan to migrate from the current state of the computing environment to another state of the computing environment;
• determining, based on the current virtual machine-to-host mapping and one or more future virtual machine-to-host mappings of the plurality of future virtual machine-to-host mappings, that one or more potential cycle alert conditions exist in the current migration plan, the one or more potential cycle alert conditions indicating that the current migration plan produces one or more future cyclical migrations;
• displaying concurrently, on a graphical user interface, the current virtual machine-to-host mapping and at least one future virtual machine-to-host mapping, the displaying including:
• illustrating, on the graphical user interface, the one or more future cyclical migrations;
• and
• changing, on the graphical user interface, the one or more future cyclical migrations being illustrated responsive to user interaction with a timeline slide bar on the graphical user interface;
• receiving, based on the displaying and the user interaction with the graphical user interface, a migration-related user change;
• eliminating, based on determining that the one or more potential cycle alert conditions exist and based on the migration-related user change, at least one future cyclical migration of the one or more cyclical migrations produced by the current migration plan, the eliminating including adjusting the current migration plan;
• based on adjusting the current migration plan, determining a savings of an optimal mapping at a current time, time A, and determining a savings of an optimal mapping at a future time, time B;
• comparing the savings of the optimal mapping at the current time, time A, and the savings of the optimal mapping at the future time, time B, to determine whether migration is to be performed;
• and
• initiating migration of a virtual machine from one host of the computing environment to another host of the computing environment at a specified time based on adjusting the current migration plan, and the comparing indicating that the migration is to be performed.

A computer-implemented method of facilitating migration of virtual machines within a computing environment, said computer-implemented method comprising:

• obtaining, by a processor, a current state of the computing environment, the current state including a current virtual machine-to-host mapping identifying a plurality of virtual machines executing in the current state, the current virtual machine-to-host mapping indicating the plurality of virtual machines currently on a plurality of hosts;
• obtaining, by the processor, a plurality of future virtual machine-to-host mappings, wherein a future virtual machine-to-host mapping identifies one or more virtual machines to be executed on one or more hosts in a future state of the computing environment;
• obtaining, by the processor, a current migration plan to migrate from the current state of the computing environment to another state of the computing environment;
• determining, based on the current virtual machine-to-host mapping and one or more future virtual machine-to-host mappings of the plurality of future virtual machine-to-host mappings, that one or more potential cycle alert conditions exist in the current migration plan, the one or more potential cycle alert conditions indicating that the current migration plan produces one or more future cyclical migrations;
• displaying concurrently, on a graphical user interface, the current virtual machine-to-host mapping and at least one future virtual machine-to-host mapping, the displaying including:
• illustrating, on the graphical user interface, the one or more future cyclical migrations;
• and
• changing, on the graphical user interface, the one or more future cyclical migrations being illustrated responsive to user interaction with a timeline slide bar on the graphical user interface;
• receiving, based on the displaying and the user interaction with the graphical user interface, a migration-related user change;
• eliminating, based on determining that the one or more potential cycle alert conditions exist and based on the migration-related user change, at least one future cyclical migration of the one or more cyclical migrations produced by the current migration plan, the eliminating including adjusting the current migration plan;
• based on adjusting the current migration plan, determining a savings of an optimal mapping at a current time, time A, and determining a savings of an optimal mapping at a future time, time B;
• comparing the savings of the optimal mapping at the current time, time A, and the savings of the optimal mapping at the future time, time B, to determine whether migration is to be performed;
• and
• initiating migration of a virtual machine from one host of the computing environment to another host of the computing environment at a specified time based on adjusting the current migration plan, and the comparing indicating that the migration is to be performed.