``` # 节点CPU使用率 (1-sum(rate(node_cpu_seconds_total{mode="idle"}[1m])) by (instance) / sum(rate(node_cpu_seconds_total[1m]))by(instance)) * 100 # 节点的内存使用率 (1-(node_memory_Buffers_bytes+node_memory_Cached_bytes+node_memory_MemFree_bytes)/node_memory_MemTotal_bytes) * 100 # 主机信息 node_uname_info{job="node-exporter"} # 运行时间 sum(time() - node_boot_time_seconds{job="node-exporter"}) by(instance) # 总内存 node_memory_MemTotal_bytes{job="node-exporter"} # CPU核数 count(node_cpu_seconds_total{job="node-exporter",mode="system"})by(instance) # 磁盘挂载 node_filesystem_size_bytes{instance="node-exporter-dev1:9100"} ```