1. A method for execution by one or more processing modules of one or more computing devices of a dispersed storage network (DSN), the method comprises: receiving a request, wherein the request comprises a read slice request for data; identifying a session associated with the request; queueing a task associated with the request and the session; prior to being ready to execute the task, determining whether a decode threshold is met message is received, wherein the decode threshold is met message indicates that sufficient slices have been received to decode the data; when the decode threshold is met message has been received, cancelling the task; when the decode threshold is met message has not been received and when ready to execute the task, determining whether the session is still active based on a timeout or a detection of disconnection with a requesting entity or an end of session message has been received; when the session is not active, cancelling the task; and when the session is still active, executing the task when task resources are available.