Query: fix exemplar proxying for receivers with multiple tenants #7326
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Signed-off-by: Pedro Tanaka <[email protected]>
When using the exemplars proxy to search for exemplars on receivers, if one receiver had tenants that did not match the selector on the external label it would get skipped completely even if it had a tenant that actually matched Signed-off-by: Pedro Tanaka <[email protected]>
Signed-off-by: Pedro Tanaka <[email protected]>
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fpetkovski
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fpetkovski
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May 3, 2024
pkg/exemplars/proxy.go
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| for m := range matcherSet { | ||
| labelMatchers = append(labelMatchers, m) | ||
| for _, m := range matcherSet { | ||
| if isExternalLabel(m.Name, extLbls) { |
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I wonder if we should propagate labels matchers here, but check them in tsdb.go. Otherwise all tenants in a receiver will match whenever a single tenant matches.
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I guess it will fail when proxying via sidecar? Because we are also passing the query as is there. We could leave this as a follow up and maintain behavior for now.
I think the best approach is to cover on all places, but would require ppl upgrading all components if they are running on distributed mode. Otherwise exemplars queries will not match anything.
Signed-off-by: Pedro Tanaka <[email protected]>
fpetkovski
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May 3, 2024
MichaHoffmann
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May 6, 2024
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