Monitoring item selection method and device, and storage medium

A monitoring item selection device, comprising:

• a memory:
• a communication interface that is communicatively coupled to a monitoring target device via a network;
• and
• a processor communicatively coupled to the memory the communication interface;
• wherein the processor, having an operation information acquisition unit, periodically acquires operation information from the monitoring target device,
• wherein the acquired operation information indicates resources of the monitoring target device and nodes that run on the monitoring target device and utilize the resources of the monitoring target device to execute processing, wherein the processor periodically acquires the operation information when a predetermined time period has elapsed from a prior time that operation information was received from the monitoring target device;
• extracts a relation between the nodes and a relation between the nodes and the resources based on the acquired operation information;
• wherein the relation between the nodes and the relation between the nodes and the resources are extracted based on only a part of the acquired operation information that was updated, and the relation between the nodes and relation between the nodes and the resources are updated based on an extraction result;
• stores, in the memory, the acquired operation information, the extracted relation between the nodes, and the extracted relation between the nodes and the resources, wherein the processor stores an updated part of the stored acquired operation information, the stored extracted relation between the nodes, and the stored extracted relation between the nodes and the resources are updated when new operation information is acquired;
• on a condition that a change related to a process in the monitoring target device is determined, updates an inter-node direct relation table and an inter-node reachable relation table according to the updated part of the acquired operation information;
• and
• a monitoring item selection device selects monitoring items of the monitoring target device based on only a part of the stored extracted relation between the nodes and stored extracted relation between the nodes and the resources that were updated and the monitoring items of the monitoring target device are selected by updating the monitoring items stored based on a selection result;
• searches for a process to become a source node in the monitoring target device based at least in part on the acquired operation information by an inter-node relation extraction unit extracting the process after a configuration change and a relation between respective processes, and updating the inter-node direct relation table and the inter-node reachable relation table based on an extraction result;
• and
• sends, by the monitoring item selection device, an update to the monitoring target device relating to updated acquired operation information.