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lib/storage: reduce the maximum inverted index scans before giving up to label filters matching by metric name

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The new value reduces the amount of wasted work during index scans over big number of time series.
This commit is contained in:
Aliaksandr Valialkin 2019-11-05 13:24:22 +02:00
parent d2f688c550
commit f48e97263c
1 changed files with 1 additions and 1 deletions
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lib/storage/index_db.go
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@ -2091,7 +2091,7 @@ func (is *indexSearch) updateMetricIDsAll(metricIDs *uint64set.Set, accountID, p
// The maximum number of index scan loops per already found metric.
// Bigger number of loops is slower than updateMetricIDsByMetricNameMatch
// over the found metrics.
const maxIndexScanLoopsPerMetric = 400
const maxIndexScanLoopsPerMetric = 100
func (is *indexSearch) intersectMetricIDsWithTagFilter(tf *tagFilter, filter *uint64set.Set) (*uint64set.Set, error) {
if filter.Len() == 0 {