And it just started appearing again.
It took approximately the same time to show up again as last time, around
1h10.
On Thursday, February 25, 2021 at 11:37:36 AM UTC+1 Constantin Clauzel
wrote:
> Attached file in previous message was broken:
>
> On Thursday, February 25, 2021 at 11:32:52 AM UTC+1 Constantin Clauzel
> wrote:
>
>> Hey,
>>
>> Since this morning I'm experiencing some very weird behaviors with one of
>> my counters.
>> It randomly stays at zero for an hour, then appears again, then again to
>> zero.
>>
>> What is strange is that all other metrics are showing up, meaning
>> prometheus can reach the endpoint, and when I check the endpoint is has the
>> missing counter in it.
>>
>> Is there any possible reason that could explain why a counter suddenly
>> only returns zeros, and then starts working again for no apparent reason?
>>
>> Please find attached how the graphs look.
>>
>> The query that returns all zeros:
>> sum(increase(appbackend_alerts{metric="TEMP", type="TOO_HIGH"}[5m]))
>> sum(increase(appbackend_alerts{metric="HUMI", type="TOO_HIGH"}[5m]))
>>
>> The prometheus endpoint returns all those appbackend_alerts lines:
>>
>> appbackend_alerts{boxID="0",controllerID="xxxxxxxxx",metric="HUMI",type="TOO_HIGH"}
>>
>> 1
>> appbackend_alerts{boxID="0",controllerID="xxxxxxxxx",metric="HUMI",type="TOO_LOW"}
>>
>> 1
>> appbackend_alerts{boxID="0",controllerID="xxxxxxxxx",metric="TEMP",type="TOO_LOW"}
>>
>> 1
>> appbackend_alerts{boxID="0",controllerID="xxxxxxxxx",metric="HUMI",type="TOO_LOW"}
>>
>> 1
>> appbackend_alerts{boxID="0",controllerID="xxxxxxxxx",metric="HUMI",type="TOO_HIGH"}
>>
>> 1
>> appbackend_alerts{boxID="0",controllerID="xxxxxxxxx",metric="HUMI",type="TOO_LOW"}
>>
>> 1
>> appbackend_alerts{boxID="0",controllerID="xxxxxxxxx",metric="HUMI",type="TOO_LOW"}
>>
>> 1
>> appbackend_alerts{boxID="0",controllerID="xxxxxxxxx",metric="HUMI",type="TOO_HIGH"}
>>
>> 1
>> [ ... And may more ]
>>
>> Thanks,
>> Constantin
>>
>
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