Nodemanager resource usage metrics sometimes are negative

When we collect real-time metrics of resource usage in NM, we found those values sometimes are invalid.
For example, the following are values when collected at some point:

"milliVcoresUsed":-5808,
"currentPmemUsage":-1,
"currentVmemUsage":-1,
"cpuUsagePercentPerCore":-968.1026
"cpuUsageTotalCoresPercentage":-24.202564,
"pmemLimit":2147483648,
"vmemLimit":4509715456

There are many negative values, there may a bug in NM.
We should fix it, because the real-time metrics of NM is pretty important for us sometimes.