*Correction: I was expecting a graph similar to the once for server2 , but
i got :
should be - I was expecting a graph similar to the server1 , but i got :
On Friday 23 February 2024 at 00:58:52 UTC+5:30 Puneet Singh wrote:
> Hi All,
> I have a metric called go_service_status where i use the "sum without"
> operator to determine whether a service is up or down on a server. Now
> there can be a situation where service can be down simultaneously on 2
> master servers and I am unable to figure out a PromQL query to detect that
> situation. Example -
>
>
> *go_service_status{SERVICETYPE="grade1",SERVER_CATEGORY="db1",instance=~"server1:7878"}*
> and it can have 2 possible series -
> go_service_status{HOSTNAME="server1", SERVER_CATEGORY="db1",
> SERVICETYPE="grade1", USER="admin", instance="server1:7878",
> job="customprocessexporter01"} 0
> go_service_status{HOSTNAME="server1", SERVER_CATEGORY="db1",
> SERVICETYPE="grade1", USER="root", instance="server1:7878",
> job="customprocessexporter01"} 1
>
> and in the same way
>
> *go_service_status{SERVICETYPE="grade1",SERVER_CATEGORY="db1",instance=~"server2:7878"}*
> and it can have 2 possible series -
> go_service_status{HOSTNAME="server2", SERVER_CATEGORY="db1",
> SERVICETYPE="grade1", USER="admin", instance="server2:7878",
> job="customprocessexporter01"} 0
> go_service_status{HOSTNAME="server2", SERVER_CATEGORY="db1",
> SERVICETYPE="grade1", USER="root", instance="server2:7878",
> job="customprocessexporter01"} 0
>
>
> Here;s the query using which i figure out status of the service on
> server1. Example -
>
> (sum without (USER) (
> *go_service_status{HOSTNAME="server1",SERVER_CATEGORY="db1",SERVICETYPE="grade1"}*)
>
> < 1)[image: Untitled.png]
>
> so the server1's service is momentarily 0
>
>
> and server2's service is always down , example -
> (sum without (USER) (
> *go_lsf_service_status{HOSTNAME="server2",SERVER_CATEGORY="db1",SERVICETYPE="grade1"}*)
>
> < 1)[image: Untitled.png]
>
>
> Now i tried to find the time duration where both these service were
> simultaneously down / 0 on both server1 and server2 :
> (sum without (USER) (
> *go_service_status{HOSTNAME="server1",SERVER_CATEGORY="db1",SERVICETYPE="grade1"}*)
>
> < 1) and (sum without (USER) (
> *go_service_status{HOSTNAME="server2",SERVER_CATEGORY="db1",SERVICETYPE="grade1"}*)
>
> < 1)
>
>
> I was expecting a graph similar to the once for server2 , but i got :
> [image: Untitled.png]
>
> I think i need to ignore the HOSTNAME label , but unable to figure out the
> way to ignore the HOSTNAME label in combination with sum without clause.
>
> Any help/hint to improve this query will be very useful for me to
> understand the and condition in context of sum without clause.
>
> Thanks,
> Puneet
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