Note that time() isn't actually the current time, but the instant at which
the query relates to. Do a graph of "time()" in the Prometheus web
interface to see this.
If you want the current value of the clock on a node via node_exporter,
then the metric you're looking for is "node_time_seconds".
If you want to check whether the node's clock is wrong, then you can use an
alerting rule like this:
- alert: ClockSync
expr: abs(node_time_seconds - timestamp(node_time_seconds)) > 5
for: 15m
labels:
severity: warning
annotations:
summary: 'Clock is out of sync ({{$value|humanize}} seconds)'
On Wednesday, 27 July 2022 at 09:08:54 UTC+1 [email protected] wrote:
> https://prometheus.io/docs/prometheus/latest/querying/functions/#time
>
>
>
> On Wed, Jul 27, 2022 at 5:57 AM BHARATH KUMAR <[email protected]>
> wrote:
>
>> Hello,
>>
>> How to get the current time in epochs in the Prometheus query?
>>
>> Like can we get this info using Node Exporter metrics or any timestamp
>> function we can use to get that?
>>
>> Any leads?
>>
>> Thanks & regards,
>> Bharath Kumar.
>>
>> On Tuesday, 26 July 2022 at 22:00:00 UTC+5:30 BHARATH KUMAR wrote:
>>
>>> Hi,
>>>
>>> I had a table with column name *last loggedin time* in grafana
>>> dashboard.
>>>
>>> This will give info regarding on particular server at what time the user
>>> had accessed that server last time
>>>
>>> The Prometheus query is as below:
>>>
>>> (max_over_time(last_time_user_logged_in_time{instance=~"$ip"}[5m]) * 1000)
>>>
>>> Now I need to compare during the last 24 hours, how many servers are not
>>> accessed.
>>> at the end of the query, I want to compare some epochs so that I will
>>> give output, but the epoch we need to pass is dynamic.
>>>
>>> How to do that?
>>>
>>> Any suggestions please?
>>>
>>> Thanks & regards,
>>> Bharath Kumar.
>>>
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>>
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