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app/vmselect/promql: do not return artificial points beyond the last point in time series

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This commit is contained in:
Aliaksandr Valialkin 2019-09-04 16:22:06 +03:00
parent a7d5d611fe
commit f78ffe565f
2 changed files with 6 additions and 6 deletions
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2
app/vmselect/promql/rollup.go
View file

@ -211,7 +211,7 @@ func (rc *rollupConfig) Do(dstValues []float64, values []float64, timestamps []i
rfa.prevValue = nan
rfa.prevTimestamp = tStart - maxPrevInterval
if i > 0 && timestamps[i-1] > rfa.prevTimestamp {
if i < len(timestamps) && i > 0 && timestamps[i-1] > rfa.prevTimestamp {
rfa.prevValue = values[i-1]
rfa.prevTimestamp = timestamps[i-1]
}

10
app/vmselect/promql/rollup_test.go
View file

@ -359,7 +359,7 @@ func TestRollupNoWindowNoPoints(t *testing.T) {
}
rc.Timestamps = getTimestamps(rc.Start, rc.End, rc.Step)
values := rc.Do(nil, testValues, testTimestamps)
valuesExpected := []float64{2, 0, 0, 0, 0, 0, 0, 0}
valuesExpected := []float64{2, 0, 0, 0, nan, nan, nan, nan}
timestampsExpected := []int64{120, 124, 128, 132, 136, 140, 144, 148}
testRowsEqual(t, values, rc.Timestamps, valuesExpected, timestampsExpected)
})
@ -390,7 +390,7 @@ func TestRollupWindowNoPoints(t *testing.T) {
}
rc.Timestamps = getTimestamps(rc.Start, rc.End, rc.Step)
values := rc.Do(nil, testValues, testTimestamps)
valuesExpected := []float64{34, 34, 34, nan}
valuesExpected := []float64{nan, nan, nan, nan}
timestampsExpected := []int64{161, 171, 181, 191}
testRowsEqual(t, values, rc.Timestamps, valuesExpected, timestampsExpected)
})
@ -421,7 +421,7 @@ func TestRollupNoWindowPartialPoints(t *testing.T) {
}
rc.Timestamps = getTimestamps(rc.Start, rc.End, rc.Step)
values := rc.Do(nil, testValues, testTimestamps)
valuesExpected := []float64{12, 44, 34, 34}
valuesExpected := []float64{12, 44, 34, nan}
timestampsExpected := []int64{100, 120, 140, 160}
testRowsEqual(t, values, rc.Timestamps, valuesExpected, timestampsExpected)
})
@ -466,7 +466,7 @@ func TestRollupWindowPartialPoints(t *testing.T) {
}
rc.Timestamps = getTimestamps(rc.Start, rc.End, rc.Step)
values := rc.Do(nil, testValues, testTimestamps)
valuesExpected := []float64{44, 34, 34, 34}
valuesExpected := []float64{44, 34, 34, nan}
timestampsExpected := []int64{100, 120, 140, 160}
testRowsEqual(t, values, rc.Timestamps, valuesExpected, timestampsExpected)
})
@ -480,7 +480,7 @@ func TestRollupWindowPartialPoints(t *testing.T) {
}
rc.Timestamps = getTimestamps(rc.Start, rc.End, rc.Step)
values := rc.Do(nil, testValues, testTimestamps)
valuesExpected := []float64{nan, 54, 44, 34}
valuesExpected := []float64{nan, 54, 44, nan}
timestampsExpected := []int64{0, 50, 100, 150}
testRowsEqual(t, values, rc.Timestamps, valuesExpected, timestampsExpected)
})