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Merge pull request #13559 from prometheus/beorn7/promql

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promql: Fix wrongly scoped range vectors
This commit is contained in:
Björn Rabenstein 2024-02-12 14:34:33 +01:00 committed by GitHub
parent b66b0a5288 553d92affd
commit 1efca80956
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3 changed files with 14 additions and 9 deletions
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3
model/labels/labels_test.go
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@ -708,7 +708,8 @@ func TestScratchBuilder(t *testing.T) {
func TestLabels_Hash(t *testing.T) {
lbls := FromStrings("foo", "bar", "baz", "qux")
require.Equal(t, lbls.Hash(), lbls.Hash())
hash1, hash2 := lbls.Hash(), lbls.Hash()
require.Equal(t, hash1, hash2)
require.NotEqual(t, lbls.Hash(), FromStrings("foo", "bar").Hash(), "different labels match.")
}

6
promql/engine.go
View file

@ -1494,10 +1494,14 @@ func (ev *evaluator) eval(expr parser.Expr) (parser.Value, annotations.Annotatio
otherInArgs[j][0].F = otherArgs[j][0].Floats[step].F
}
}
// Evaluate the matrix selector for this series
// for this step, but only if this is the 1st
// iteration or no @ modifier has been used.
if ts == ev.startTimestamp || selVS.Timestamp == nil {
maxt := ts - offset
mint := maxt - selRange
// Evaluate the matrix selector for this series for this step.
floats, histograms = ev.matrixIterSlice(it, mint, maxt, floats, histograms)
}
if len(floats)+len(histograms) == 0 {
continue
}

8
promql/testdata/functions.test vendored
View file

@ -221,19 +221,19 @@ eval instant at 50m deriv(testcounter_reset_middle[100m])
# intercept at t=0: 6.818181818181818
# intercept at t=3000: 38.63636363636364
# intercept at t=3000+3600: 76.81818181818181
eval instant at 50m predict_linear(testcounter_reset_middle[100m], 3600)
eval instant at 50m predict_linear(testcounter_reset_middle[50m], 3600)
{} 76.81818181818181
# intercept at t = 3000+3600 = 6600
eval instant at 50m predict_linear(testcounter_reset_middle[100m] @ 3000, 3600)
eval instant at 50m predict_linear(testcounter_reset_middle[50m] @ 3000, 3600)
{} 76.81818181818181
# intercept at t = 600+3600 = 4200
eval instant at 10m predict_linear(testcounter_reset_middle[100m] @ 3000, 3600)
eval instant at 10m predict_linear(testcounter_reset_middle[50m] @ 3000, 3600)
{} 51.36363636363637
# intercept at t = 4200+3600 = 7800
eval instant at 70m predict_linear(testcounter_reset_middle[100m] @ 3000, 3600)
eval instant at 70m predict_linear(testcounter_reset_middle[50m] @ 3000, 3600)
{} 89.54545454545455
# With http_requests, there is a sample value exactly at the end of