I have created a dashboard to display real-time memory status, but I have noticed that there are many empty entries, causing my dashboard to alternate between no data and data. Do you know why there are so many empty entries?
The resource is CPU from VMs for example, the query(influxdb) is as follows:
from(bucket: “vmware”)
|> range(start: v.timeRangeStart, stop: v.timeRangeStop)
|> filter(fn: (r) => r[“vmname”] == “XXX-XXXX”)
|> filter(fn: (r) => r[“_field”] == “usage_average”)
|> filter(fn: (r) => r[“_measurement”] == “vsphere_vm_cpu”)
|> filter(fn: (r) => r[“cpu”] == “instance-total”)
|> aggregateWindow(every: v.windowPeriod, fn: last, createEmpty: true)
|> yield(name: “last”)
The dashboard has the following options:
Calculation: Last
numeric fields
