Support label matchers in labels API #3566
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E2E is flaky #3570 |
onprem
reviewed
Dec 12, 2020
| matcherSets = append(matcherSets, matchers) | ||
| } | ||
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| q, err := qapi.queryableCreate(true, nil, storeDebugMatchers, 0, enablePartialResponse, true). |
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Not a nit, just wanted to ask a question. Why did you flip the last argument (skipChunks) to true, and what it does exactly?
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A query result contains two parts, the series metadata like label sets, and the sample values. In this case, since we are just querying labels, we can set skipChunks to not return samples, only labels are fine.
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This is the original issue about this option #1822.
Also this Prometheus pr prometheus/prometheus#8050 has the same idea to improve the performance.
Signed-off-by: Ben Ye <yb532204897@gmail.com>
Signed-off-by: Ben Ye <yb532204897@gmail.com>
Signed-off-by: Ben Ye <yb532204897@gmail.com>
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bwplotka
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Dec 16, 2020
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Signed-off-by: Ben Ye yb532204897@gmail.com
Changes
Fixes #3351
Add
match[]param for LabelNames and LabelValues queries.Now this is implemented via the
Seriesmatching. We can do matchers push down to improve this later.TODO: query frontend also needs
matcherstype for Label names and label values query. Will add them in the next pr.Verification
Add unit tests and E2E tests for this feature.