Question:
The following PromQL expression is trying to divide the the node_filesystem_avail_bytes by node_filesystem_size_bytes, and node_filesystem_avail_bytes / node_filesystem_size_bytes. The PromQL expression does not return any results, fix the expression so that it successfully divides the two metric.
This is what the two metrics look like before the division operation:
node_filesystem_avail_bytes{device="/dev/sda2", fstype="vfat", class=”SSD” instance="192.168.1.168:9100", job="test", mountpoint="/boot/efi"}
node_filesystem_size_bytes{device="/dev/sda2", fstype="vfat", instance="192.168.1.168:9100", job="test", mountpoint="/boot/efi"}