Fight-through nodes with disposable virtual machines and rollback of persistent state

A computing system comprising:

• a shared database, and
• one or more computing devices configured to:
• initialize, from one or more common templates, a virtual machine that executes on one or more computing devices of the computing system;
• responsive to an occurrence of an initiation condition of a transaction, assign the transaction to the virtual machine;
• generate, as part of the virtual machine processing the transaction, a database modification request associated with the transaction;
• responsive to the database modification request associated with the transaction, perform a modification to the shared database that is persisted independently of the virtual machine;
• generate checkpoint data associated with the transaction;
• responsive to a trigger, discard the virtual machine;
• and
• responsive to a rollback request, use the checkpoint data associated with the transaction to roll back the modification to the shared database performed responsive to the database modification request associated with the transaction.

A non-transitory computer readable data storage medium having instructions stored thereon that, when executed, cause a computing system to:

• initialize, from one or more common templates, a virtual machine that executes on one or more computing devices of the computing system;
• responsive to an occurrence of an initiation condition of a transaction, assign the transaction to the virtual machine;
• generate, as part of the virtual machine processing the transaction, a database modification request associated with the transaction;
• responsive to the database modification request associated with the transaction, perform a modification to a shared database that is persisted independently of the virtual machine;
• generate checkpoint data associated with the transaction;
• responsive to a trigger, discard the virtual machine;
• and
• responsive to a rollback request, use the checkpoint data associated with the transaction to roll back the modification to the shared database performed responsive to the database modification request associated with the transaction.