Without seeing your metric, I have no idea.
Compare the graphs of:
request_Count{key="clientId"}
and
request_Count{key="clientId"} offset 1d
and they should be the same but slid across by 1 day. Unless you've set
your retention time so low that you're retaining less than 1 day's worth of
data?
On Saturday, 14 August 2021 at 04:10:42 UTC+1 Govind Madhu wrote:
> I was checking if I can access metrics over a period of time. But with
> offset 1d, I am not getting anything with this expression
>
> request_Count{key="clientId"} offset 1d
>
> Do you know what could be the reason?
>
> On Saturday, August 14, 2021 at 12:47:51 AM UTC+5:30 Brian Candler wrote:
>
>> That is a range vector, and I still don't know what you're trying to do.
>>
>> An instant vector, like
>> request_Count{key="clientId"} offset 1d
>> should work just fine.
>>
>> On Friday, 13 August 2021 at 18:58:10 UTC+1 Govind Madhu wrote:
>>
>>> Additionally I tried to fetch the metric with an offset of 1d like below.
>>>
>>> request_Count{key="clientId"}[24h] offset 1d
>>>
>>>
>>> It was not coming in console. Current UTC time is 17:53. I tried with an
>>> offset of 6h, it was still not coming.
>>>
>>> When I tried with an offset of 5h53m, I can see some value coming for
>>> the above expression. I was under the impression that with offset you could
>>> get the metric from previous days, but I am unable to get it.
>>>
>>> On Friday, August 13, 2021 at 11:07:22 PM UTC+5:30 Brian Candler wrote:
>>>
>>>> > And additionally, when I evaluate the expression
>>>> request_Count{key="clientId"}[24h], I can see the value coming as 2
>>>>
>>>> That expression gives a range vector as its result: a table of (time X
>>>> value). It doesn't really make sense in the context of a graph, nor an
>>>> alerting query. However the PromQL will let you see it in console mode -
>>>> it returns a table of values across the given interval.
>>>>
>>>
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