Description: Node health monitoring is the process of checking the health status of nodes in a computing cluster. This process is essential to ensure the availability and performance of applications running in the cluster. Nodes are the physical or virtual machines that run containers or applications, and thus their health is crucial for the overall functioning of the system. Health monitoring involves collecting metrics and data on resource usage, such as CPU, memory, and storage, as well as detecting failures or issues in the nodes. Tools like Prometheus and Grafana are commonly used to visualize and analyze this data, allowing administrators to quickly identify any anomalies. Additionally, many orchestration platforms provide built-in mechanisms, such as liveness and readiness probes, which allow administrators to define specific conditions under which a node is considered healthy or not. This not only helps maintain cluster stability but also facilitates the automation of recovery tasks, such as restarting failed nodes or redistributing workloads. In summary, node health monitoring is an essential practice in managing computing clusters, ensuring that applications run efficiently and reliably.
