In a production system, a queue processor is not running.

Queue Processors in Pega: Queue processors are responsible for asynchronous processing of queued tasks. They can be configured to run on different types of nodes.

Types of Nodes:

Web user nodes: Handle user requests.

Real-time nodes: Handle real-time processing tasks.

Background nodes: Handle background processes such as agents and queue processors.

Stream nodes: Handle stream processing and Kafka services.

Potential Root Cause: If a queue processor is not running, it is likely due to an issue with the node type that handles background processes, which are the background nodes. If the background node is down, the queue processor will not function properly.

References:

Pega documentation on node types and their functions.

Pega Platform 8.x help files related to queue processors and background processing.