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lib/storage: fall back to global inverted index if a filter match too many time series in per-day index

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Previously this resulted to error message. The query may succeed via search in global index.
This commit is contained in:
Aliaksandr Valialkin 2019-12-03 14:46:39 +02:00
parent 54741ee578
commit a247236f61
1 changed files with 8 additions and 6 deletions
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14
lib/storage/index_db.go
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@ -2120,7 +2120,8 @@ func (is *indexSearch) tryUpdatingMetricIDsForDateRange(metricIDs *uint64set.Set
okGlobal = ok
}
if err != nil {
errGlobal = fmt.Errorf("cannot search for metricIDs on date %d: %s", date, err)
dateStr := time.Unix(int64(date*24*3600), 0)
errGlobal = fmt.Errorf("cannot search for metricIDs for %s: %s", dateStr, err)
}
mu.Unlock()
}()
@ -2146,7 +2147,7 @@ func (is *indexSearch) tryUpdatingMetricIDsForDate(date uint64, metricIDs *uint6
}
var result *uint64set.Set
maxDateMetrics := maxMetrics * 20
maxDateMetrics := maxMetrics * 50
if tfFirst == nil {
result = &uint64set.Set{}
if err := is.updateMetricIDsForDateAll(result, date, maxDateMetrics); err != nil {
@ -2156,7 +2157,7 @@ func (is *indexSearch) tryUpdatingMetricIDsForDate(date uint64, metricIDs *uint6
// according to startDateForPerDayInvertedIndex.
return true, nil
}
return false, fmt.Errorf("cannot obtain all the metricIDs for date %d: %s", date, err)
return false, fmt.Errorf("cannot obtain all the metricIDs: %s", err)
}
} else {
m, err := is.getMetricIDsForDateTagFilter(tfFirst, date, tfs.commonPrefix, maxDateMetrics)
@ -2171,7 +2172,8 @@ func (is *indexSearch) tryUpdatingMetricIDsForDate(date uint64, metricIDs *uint6
result = m
}
if result.Len() >= maxDateMetrics {
return false, fmt.Errorf("more than %d time series found; narrow down the query or increase `-search.maxUniqueTimeseries`", maxDateMetrics)
// Too many time series found by a single tag filter. Fall back to global search.
return false, nil
}
for i := range tfs.tfs {
@ -2189,8 +2191,8 @@ func (is *indexSearch) tryUpdatingMetricIDsForDate(date uint64, metricIDs *uint6
return false, err
}
if m.Len() >= maxDateMetrics {
return false, fmt.Errorf("more than %d time series found for tag filter %s; narrow down the query or increase `-search.maxUniqueTimeseries`",
maxDateMetrics, tf)
// Too many time series found by a single tag filter. Fall back to global search.
return false, nil
}
if tf.isNegative {
result.Subtract(m)