This is technically BREAKING CHANGE, but it was like this from the beginning: I just notice that we rely in
Prometheus on remote read being sorted. This is because we use selected data from remote reads in MergeSeriesSet
which rely on sorting.
I found during work on https://github.com/prometheus/prometheus/pull/5882 that
we do so many repetitions because of this, for not good reason. I think
I found a good balance between convenience and readability with just one method.
Smaller the interface = better.
Also I don't know what TestSelectSorted was testing, but now it's testing sorting.
Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
* Replaced test validations with testutils on storage/remote/codec_test.go
Signed-off-by: George Felix <george.felix@ubeeqo.com>
* gofmt
Signed-off-by: George Felix <george.felix@ubeeqo.com>
* Removed shouldPass assertion
Signed-off-by: George Felix <gfelixc@gmail.com>
* Fixes to improve readability
Signed-off-by: George Felix <george.felix@ubeeqo.com>
* Fixes based on code review comments
Signed-off-by: George Felix <george.felix@ubeeqo.com>
* Check for duplicate label names in remote read
Also add test to confirm that #5731 is fixed
* Use subtests in TestValidateLabelsAndMetricName
* Really check that expectedErr matches err
Signed-off-by: Vadym Martsynovskyy <vmartsynovskyy@gmail.com>
The labelsets returned from remote read are mutated in higher levels
(like seriesFilter.Labels()) and since the concreteSeriesSet didn't
return a copy, the external mutation affected the labelset in the
concreteSeries itself. This resulted in bizarre bugs where local and
remote series would show with identical label sets in the UI, but not be
deduplicated, since internally, a series might come to look like:
{__name__="node_load5", instance="192.168.1.202:12090", job="node_exporter", node="odroid", node="odroid"}
(note the repetition of the last label)
