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https://github.com/prometheus/prometheus
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2ea8df4734
Native histograms without a zero threshold aren't federated properly. This adds a test to prove the specific failure mode, which is that histograms with a zero threshold of zero are federated as classic histograms. The underlying reason is that the protobuf parser identifies a native histogram by detecting a zero bucket or by detecting integer buckets. Therefore, a float histogram with a zero threshold of zero and an unpopulated zero bucket falls through the cracks (no integer buckets, no zero bucket). This commit also addse a test case for the latter. Signed-off-by: beorn7 <beorn@grafana.com> |
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|---|---|---|
| .. | ||
| interface_test.go | ||
| interface.go | ||
| openmetricslex.l | ||
| openmetricslex.l.go | ||
| openmetricsparse_test.go | ||
| openmetricsparse.go | ||
| promlex.l | ||
| promlex.l.go | ||
| promparse_test.go | ||
| promparse.go | ||
| promtestdata.nometa.txt | ||
| promtestdata.txt | ||
| protobufparse_test.go | ||
| protobufparse.go | ||
| README.md | ||
Making changes to textparse lexers
In the rare case that you need to update the textparse lexers, edit promlex.l or openmetricslex.l and then run the following command:
golex -o=promlex.l.go promlex.l
Note that you need golex installed:
go get -u modernc.org/golex