如何仅当Prometheus中的PC处于启动状态时才能获得时间平均值

Question

I'm currently trying to get the average amount of free RAM in the last week on a Windows PC, using the WMI Exporter ( https://github.com/martinlindhe/wmi_exporter ) and Prometheus with the following query :

avg_over_time(wmi_os_physical_memory_free_bytes{instance="foo"}[1w])

The query inside "avg_over_time" is working correctly, but the problem is the PC is not up 24/7. Since I can't have holes in a range, I was considering the idea of using a recording rules.

The other problem is that the PC doesn't start and stop at known values, so I can't use the following solution : How to get the average over time only during the day in Prometheus because I can't tell the time of the day I need to start collecting.

Is there any recording rule that could concatenate all the information gathered only during the up time of the pc ?

Thanks in advance.

Answer 1

上面的表达式已经avg_over_time您的要求，因为在无法刮除目标并且avg_over_time不会做任何想做的事情之前，没有任何数据。