'Prometheus metric value compared to "crawl Time" in grafana
I have metric that exports "current time" from the device in UNIX time, now I would like to compare that time with "crawling time", but I seem to have some problems with that.
I tried multiple ways:
- Get "instant" data where unixtime is lower than the current time ( time() function )
example:
my_device_time{somelable="asd"} < (time() - 120)
Should return me rows that have a time difference of 2 or more minutes but do not seem to work.
The second (preferred way) would be something like that (in grafana):
my_device_time{somelable="asd"} < (crawledTime() - 60)
So questions:
is it possible to get Time field as unixtimestamp for compare or how should i compare metric value (unixtime) against current timestamp with promql
Solution 1:[1]
timestamp(my_device_time) - my_device_time()
timestamp() will return crawl time in unixtime, so found the solution on my own.
Sources
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Source: Stack Overflow
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Solution 1 |