Self-diagnosing systems using matrix barcodes

Systems, methods and computer program products for diagnosing consistency of a software cluster are provided herein. The system includes a deployment manager configured to function as a master node of the software cluster, a plurality of nodes connected to the deployment manager, and an electronic device or devices registered with the deployment manager. The deployment manager can be configured to generate a master matrix barcode and each of the plurality of nodes can be configured to generate a node matrix barcode. The electronic device(s) may be associated with a system administrator and may also be installed with application software. Embodiments may allow the system administrator to encode, manage and analyze diagnostic information of the nodes in the software cluster utilizing the master matrix barcode and the node matrix barcode in an efficient manner.