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Type: Bug
Resolution: Unresolved
Priority: Undefined
Fix Version/s: None
Affects Version/s: None
Component/s: Tekton Pipelines
Labels:

Blocked:
False
Blocked Reason:
None
Ready:
False
Intelligence Requested:
Market:

SFDC Cases Counter:
SFDC Cases Open:
SFDC Cases Links:

Description of problem:

If tried to select 2 months of data from Pipeline metrics queries, then data received is less than last one month data.(added the screenshots)

1 month data:
http://localhost:9000/api/prometheus-tenancy/api/v1/query_range?start=1718707837.979&end=1721299837.979&step=86400&query=tekton_pipelines_controller_pipelinerun_duration_seconds_sum

3 month data:
http://localhost:9000/api/prometheus-tenancy/api/v1/query_range?start=1713437539.14&end=1721299939.14&step=604800&query=tekton_pipelines_controller_pipelinerun_duration_seconds_sum

There are many decrements in the metrics query output, whether it is data issue or why there are decrements?

ex:
http://localhost:9000/api/prometheus-tenancy/api/v1/query_range?start=1720072210.311&end=1721281810.311&step=86400&query=sum(tekton_pipelines_controller_pipelinerun_duration_seconds_count)
gives me

{ "status": "success", "data": { "resultType": "matrix", "result": [ { "metric": {}, "values": [ [ 1720072210.311, "1" ], [ 1720158610.311, "4" ], [ 1720245010.311, "2" ], [ 1720331410.311, "1" ], [ 1720417810.311, "3" ], [ 1720504210.311, "6" ], [ 1720590610.311, "28" ], [ 1720677010.311, "11" ], [ 1720763410.311, "8" ], [ 1720849810.311, "1" ], [ 1720936210.311, "2" ], [ 1721109010.311, "12" ], [ 1721195410.311, "2" ], [ 1721281810.311, "1" ] ] } ] } }