Btw. you could even modify this expression to check manually every e.g. 15
minutes within the last hour, whether an IP was present at that time
increment within the last hour:
CMSummary offset 1h
and
CMSummary offset 45m
and
CMSummary offset 30m
and
CMSummary offset 15m
and
CMSummary
So you see, theoretically you could even check every minute or so for the
presence, but that would become a long query...
On Fri, May 1, 2020 at 10:55 AM Julius Volz <[email protected]> wrote:
> Do you also need to exclude IPs that are present at the beginning of the
> hour, go missing briefly in between (as in, the time series becomes fully
> absent), but are present again at the end of the hour? We don't have a way
> in PromQL to check whether a series has been absent just briefly within an
> interval, but is there most of the time. We have absent_over_time(), but
> that only checks whether a series has been fully absent over a given time
> range.
>
> But if your IPs behave in such a way that they don't appear / disappear
> that rapidly, you could check which ones were there both at the beginning
> and the end of the interval:
>
> CMSummary offset 1h and CMSummary
>
> On Thu, Apr 30, 2020 at 10:51 PM Arnav Bose <[email protected]> wrote:
>
>> Hi,
>>
>> I know I can check in the graph how long the metric has been available.
>> In my case I want to create a query which will list down the data for a
>> metric which has been available for an hour, excluding the ones which at
>> least went down/missing during the same period.
>>
>> Here is my metric - CMSummary{ipAddr="$$$"}. There are at least 20000
>> different IP sources with this metric. I want to know which ones have been
>> available for the last 1 hr.
>>
>>
>> Thanks,
>> Arnav
>>
>>
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>>
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