26 Commits (5aa3d8260a7335a0da6946dea82f608cafa46c20)

Author	SHA1	Message	Date
Bryan Boreham	3aaf2c3c9d	[TESTS] Add second native histogram with exemplars in TestProtobufParse ... This test fails. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	1 year ago
Bryan Boreham	e8ecc11816	[TESTS] Fix up item numbers in TestProtobufParse ... If an error is thrown by the test, these numbers help you see which item is wrong. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	1 year ago
Bryan Boreham	eff3a13e19	model/textparse: parsers take a labels SymbolTable ... This allows strings to be interned to save memory. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	2 years ago
Ziqi Zhao	a93859a52f	Prometheus support parse exemplars from native histogram (#13488) ... scrape: support parsing exemplars from native histogram --------- Signed-off-by: Ziqi Zhao <zhaoziqi9146@gmail.com> Signed-off-by: Björn Rabenstein <github@rabenste.in> Co-authored-by: Björn Rabenstein <github@rabenste.in>	2 years ago
Bryan Boreham	17f48f2b3b	Tests: use replacement DeepEquals in more places ... Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	2 years ago
Bryan Boreham	c83e1fc574	textparse: remove MetricType alias ... No backwards-compatibility; make a clean break. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	2 years ago
Bryan Boreham	8065bef172	Move metric type definitions to common/model ... They are used in multiple repos, so common is a better place for them. Several packages now don't depend on `model/textparse`, e.g. `storage/remote`. Also remove `metadata` struct from `api.go`, since it was identical to a struct in the `metadata` package. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	2 years ago
Arianna Vespri	9fb1e9715c	Go on adding protobuf parsing for unit ... Signed-off-by: Arianna Vespri <arianna.vespri@yahoo.it>	2 years ago
Arthur Silva Sens	5082655392	Append Created Timestamps (#12733) ... * Append created timestamps. Signed-off-by: Arthur Silva Sens <arthur.sens@coralogix.com> * Log when created timestamps are ignored Signed-off-by: Arthur Silva Sens <arthur.sens@coralogix.com> * Proposed changes to Append CT PR. Changes: * Changed textparse Parser interface for consistency and robustness. * Changed CT interface to be more explicit and handle validation. * Simplified test, change scrapeManager to allow testability. * Added TODOs. Signed-off-by: bwplotka <bwplotka@gmail.com> * Updates. Signed-off-by: bwplotka <bwplotka@gmail.com> * Addressed comments. Signed-off-by: bwplotka <bwplotka@gmail.com> * Refactor head_appender test Signed-off-by: Arthur Silva Sens <arthur.sens@coralogix.com> * Fix linter issues Signed-off-by: Arthur Silva Sens <arthur.sens@coralogix.com> * Use model.Sample in head appender test Signed-off-by: Arthur Silva Sens <arthur.sens@coralogix.com> --------- Signed-off-by: Arthur Silva Sens <arthur.sens@coralogix.com> Signed-off-by: bwplotka <bwplotka@gmail.com> Co-authored-by: bwplotka <bwplotka@gmail.com>	2 years ago
Matthieu MOREL	9c4782f1cc	golangci-lint: enable testifylint linter (#13254) ... Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>	2 years ago
zenador	32ee1b15de	Fix error on ingesting out-of-order exemplars (#13021) ... Fix and improve ingesting exemplars for native histograms. See code comment for a detailed explanation of the algorithm. Note that this changes the current behavior for all kind of samples slightly: We now allow exemplars with the same timestamp as during the last scrape if the value or the labels have changed. Also note that we now do not ingest exemplars without timestamps for native histograms anymore. Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com> Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com> Co-authored-by: Björn Rabenstein <github@rabenste.in> --------- Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com> Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com> Signed-off-by: zenador <zenador@users.noreply.github.com> Co-authored-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com> Co-authored-by: Björn Rabenstein <github@rabenste.in>	2 years ago
Arthur Silva Sens	ef8e6ae780	Parse created timestamps from Prometheus Protobuf (#12973) ... Signed-off-by: Arthur Silva Sens <arthur.sens@coralogix.com>	2 years ago
beorn7	3d9a830f2f	textparse: Expose #12731 in protobufparse_test.go ... Signed-off-by: beorn7 <beorn@grafana.com>	2 years ago
beorn7	c58e20ad0e	histogram: Identify native histograms even without observations ... Native histograms without observations and with a zero threshold of zero look the same as classic histograms in the protobuf exposition format. According to https://github.com/prometheus/client_golang/issues/1127 , the idea is to add a no-op span to those histograms to mark them as native histograms. This commit enables Prometheus to detect that no-op span and adds a doc comment to the proto spec describing the behavior. Signed-off-by: beorn7 <beorn@grafana.com>	2 years ago
beorn7	2ea8df4734	histogram: Expose #12305 ... 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>	2 years ago
beorn7	1c3bd04bea	histograms: Modify test to expose bug #12552 ... Signed-off-by: beorn7 <beorn@grafana.com>	2 years ago
beorn7	9e500345f3	textparse/scrape: Add option to scrape both classic and native histograms ... So far, if a target exposes a histogram with both classic and native buckets, a native-histogram enabled Prometheus would ignore the classic buckets. With the new scrape config option `scrape_classic_histograms` set, both buckets will be ingested, creating all the series of a classic histogram in parallel to the native histogram series. For example, a histogram `foo` would create a native histogram series `foo` and classic series called `foo_sum`, `foo_count`, and `foo_bucket`. This feature can be used in a migration strategy from classic to native histograms, where it is desired to have a transition period during which both native and classic histograms are present. Note that two bugs in classic histogram parsing were found and fixed as a byproduct of testing the new feature: 1. Series created from classic _gauge_ histograms didn't get the _sum/_count/_bucket prefix set. 2. Values of classic _float_ histograms weren't parsed properly. Signed-off-by: beorn7 <beorn@grafana.com>	3 years ago
György Krajcsovits	e9b2d87443	Revert change to model/textparse/protobufparse_test.go ... Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>	3 years ago
György Krajcsovits	071426f72f	Add unit test for bucket limit appender ... Refactors textparser test to use a common test utility to create protobuf representation from MetricFamily Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>	3 years ago
beorn7	3f977e89ab	textparse: Add tests for float and gauge histograms ... Signed-off-by: beorn7 <beorn@grafana.com>	3 years ago
Fish-pro	6ed71a229e	Use errors.Is to check for a specific error ... Signed-off-by: Fish-pro <zechun.chen@daocloud.io>	3 years ago
Bryan Boreham	8d350d9e0c	Update package model/textparse tests for new labels.Labels type ... We don't want to touch the result labels now we create them differently. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	3 years ago
Marc Tudurí	f7df3b86ba	histograms: parse float histograms from proto definition (#11149) ... * histograms: parse float histograms from proto definition Signed-off-by: Marc Tuduri <marctc@protonmail.com> * Improve comment Signed-off-by: Marc Tuduri <marctc@protonmail.com> * Ignore float buckets Signed-off-by: Marc Tuduri <marctc@protonmail.com> * Refactor Histogram() function Signed-off-by: Marc Tuduri <marctc@protonmail.com> * Fix test_float_histogram Signed-off-by: Marc Tuduri <marctc@protonmail.com> * Update model/textparse/protobufparse.go Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> Signed-off-by: Marc Tudurí <marctc@protonmail.com> * Update protobufparse.go Signed-off-by: Marc Tudurí <marctc@protonmail.com> * Update scrape.go Signed-off-by: Marc Tudurí <marctc@protonmail.com> * Update scrape/scrape.go Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> Signed-off-by: Marc Tudurí <marctc@protonmail.com> Signed-off-by: Marc Tuduri <marctc@protonmail.com> Signed-off-by: Marc Tudurí <marctc@protonmail.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>	3 years ago
beorn7	89fb7117c3	textparse: Remove TODO that is actually done ... Signed-off-by: beorn7 <beorn@grafana.com>	3 years ago
beorn7	c40b105efd	histograms: Move to new exposition protobuf format ... This is an incompatible protobuf change. Instrumented targets must include https://github.com/prometheus/client_golang/pull/1092 to make this work. Signed-off-by: beorn7 <beorn@grafana.com>	3 years ago