Pressure & Disk
Node MemoryPressure
Section titled “Node MemoryPressure”kube_node_status_condition{condition="MemoryPressure", status="true"} == 1Node DiskPressure
Section titled “Node DiskPressure”kube_node_status_condition{condition="DiskPressure", status="true"} == 1Node NetworkUnavailable
Section titled “Node NetworkUnavailable”kube_node_status_condition{condition="NetworkUnavailable", status="true"} == 1Node NotReady
Section titled “Node NotReady”kube_node_status_condition{condition="Ready", status="true"} == 0Filesystem root quasi pieno
Section titled “Filesystem root quasi pieno”100 - (node_filesystem_avail_bytes{mountpoint="/"} / node_filesystem_size_bytes{mountpoint="/"}) * 100 > 85Filesystem containers (/var/lib/containers) quasi pieno
Section titled “Filesystem containers (/var/lib/containers) quasi pieno”100 - (node_filesystem_avail_bytes{mountpoint="/var/lib/containers"} / node_filesystem_size_bytes{mountpoint="/var/lib/containers"}) * 100 > 85Inode quasi esauriti
Section titled “Inode quasi esauriti”100 - (node_filesystem_files_free / node_filesystem_files * 100) > 85Disk IO saturation (tempo medio in coda/attesa)
Section titled “Disk IO saturation (tempo medio in coda/attesa)”rate(node_disk_io_time_seconds_total[5m])Predict linear: volume PVC pieno in 4 giorni
Section titled “Predict linear: volume PVC pieno in 4 giorni”predict_linear(kubelet_volume_stats_available_bytes[6h:5m], 4 * 24 * 3600) < 0