Task queues

The App Engine Task Queue provides an orchestration layer for services to delegate long-running tasks to other services called workers. These workers can then perform the task in an offline asynchronous manner, outside of the request/response lifecycle. The task queue makes it possible to implement resource and time intensive operations while maintaining lightweight front-end services capable of handling large volumes of user requests. This, in turn, makes it possible to scale frontend services and workers independently, creating more elastic and efficient systems.