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reduce unnecessary vmstorage query (#3031)

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* reduce unnecessary vmstorage query

* reduce unnecessary vmstorage query

* rollback limit logic /api/v1/label/*
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匠心零度 2022-08-30 17:34:23 +08:00 committed by Aliaksandr Valialkin
parent 5d4b1bc742
commit 6d81584d2a
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1 changed files with 6 additions and 1 deletions
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7
app/vmselect/prometheus/prometheus.go
View file

@ -616,7 +616,12 @@ func SeriesHandler(qt *querytracer.Tracer, startTime time.Time, w http.ResponseW
if err != nil { if err != nil {
return err return err
} }
sq := storage.NewSearchQuery(cp.start, cp.end, cp.filterss, *maxSeriesLimit)
minLimit := *maxSeriesLimit
if limit > 0 && limit < *maxSeriesLimit {
minLimit = limit
}
sq := storage.NewSearchQuery(cp.start, cp.end, cp.filterss, minLimit)
metricNames, err := netstorage.SearchMetricNames(qt, sq, cp.deadline) metricNames, err := netstorage.SearchMetricNames(qt, sq, cp.deadline)
if err != nil { if err != nil {
return fmt.Errorf("cannot fetch time series for %q: %w", sq, err) return fmt.Errorf("cannot fetch time series for %q: %w", sq, err)