Embodiments of a system, method, and computer program product for monitoring task processing in a distributed system are provided. A task controller is provided with a task. The task controller generates a plurality of subtasks from the provided task, where each subtask includes a callback function. The subtasks are distributed for execution to multiple computing devices in the distributed system. As each subtask is executed by a computing device, the callback function is invoked, the invocation generating a message. The message includes the process and status information of the executing subtasks. The process and status information included in the message for each subtask is monitored, analyzed and aggregated, and is transmitted for a display on a client device.