Abnormality detection method and a non-transitory computer-readable storage medium for storing abnormality detection program

A non-transitory computer-readable storage medium storing an abnormality detection program which causes a processor of a computer to perform processing, the computer being equipped with a multi-queue network interface card (NIC) having multiple queues, the processing including:

• calculating, for each of the multiple queues included in the multi-queue NIC, an occurrence degree of a packet loss by multiplying a first time period in which a receiving process corresponding to that queue is in a waiting state and an arrival frequency of packets each received by the receiving process and stored into that queue, the receiving process being one of a plurality of processes each configured to receive a packet via the multi-queue NIC, each of the multiple queues being associated with any one of the plurality of processes;
• distributing the number of packet losses occurred in the multi-queue NIC to each of the multiple queues by multiplying, for each of the multiple queues, the calculated occurrence degree and the number of packet losses;
• and
• determining, for each of the multiple queues, whether an abnormality occurs in the receiving process corresponding to that queue, by comparing a range defined between an upper limit and a lower limit and a correspondence relationship between an operation state of the receiving process corresponding to that queue and the number of packet losses distributed to that queue.