promqltest: Complete the tests for info annotations
So far, we did not test for the _absence_ of an info annotation
(because many tests triggered info annotations, which we haven't taken
into account so far).
The test for info annotations was also missed for range queries.
This completes the tests for info annotations (and refactors the many
`if` statements into a somewhat more compact `switch` statement).
It fixes most tests to not emit an info annotation anymore. Or it
changes the `eval` to `eval_info` where we actually want to test for
the info annotation.
It also fixes a few spelling errors in comments.
---------
Signed-off-by: beorn7 <beorn@grafana.com>
Signed-off-by: Björn Rabenstein <github@rabenste.in>
Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>
This converts `TestNativeHistogram_SubOperator` to the promql testing framework. It also removes `TestNativeHistogram_Sum_Count_Add_AvgOperator`, which got converted earlier.
Signed-off-by: Neeraj Gartia <neerajgartia211002@gmail.com>
For: #14355
This commit updates Prometheus to adopt stdlib's log/slog package in
favor of go-kit/log. As part of converting to use slog, several other
related changes are required to get prometheus working, including:
- removed unused logging util func `RateLimit()`
- forward ported the util/logging/Deduper logging by implementing a small custom slog.Handler that does the deduping before chaining log calls to the underlying real slog.Logger
- move some of the json file logging functionality to use prom/common package functionality
- refactored some of the new json file logging for scraping
- changes to promql.QueryLogger interface to swap out logging methods for relevant slog sugar wrappers
- updated lots of tests that used/replicated custom logging functionality, attempting to keep the logical goal of the tests consistent after the transition
- added a healthy amount of `if logger == nil { $makeLogger }` type conditional checks amongst various functions where none were provided -- old code that used the go-kit/log.Logger interface had several places where there were nil references when trying to use functions like `With()` to add keyvals on the new *slog.Logger type
Signed-off-by: TJ Hoplock <t.hoplock@gmail.com>
* Make rate possible non-counter annotation consistent
Previously a PossibleNonCounterInfo annotation would be left in cases
where a range-vector selects 1 float data point, even if no more points
are selected in order to calculate a rate.
This change ensures an output float exists before emitting such an
annotation.
This fixes an inconsistency where a series with mixed data (ie, a float
and a native histogram) would emit an annotation without any points.
For example,
```
load 1m
series{label="a"} 1 {{schema:1 sum:10 count:5 buckets:[1 2 3]}}
eval instant at 1m rate(series[1m1s])
```
Would have a PossibleNonCounterInfo annotation.
Wheras
```
load 1m
series{label="a"} {{schema:1 sum:10 count:5 buckets:[1 2 3]}} {{schema:1 sum:15 count:10 buckets:[1 2 3]}}
eval instant at 1m rate(series[1m1s])
```
Would not.
---------
Signed-off-by: Joshua Hesketh <josh@nitrotech.org>
Conflicts:
cmd/prometheus/main.go
docs/command-line/prometheus.md
docs/feature_flags.md
web/ui/build_ui.sh
web/web.go
Resolved by dropping the UTF-8 feature flag and adding the
`auto-reload-config` feature flag.
For the new web ui pick all changes from `main`.
Fix call to newTestEngine(t) in promql/engine_test.go:3214.
`agent` feature-flag it's own cmdline flag now.
Remove `scrape.name-escaping-scheme` argument.
Signed-off-by: Jan Fajerski <jfajersk@redhat.com>
PromQL: add test for mul and div operator
Also, remove the converted test from the engine_test.go file.
This also includes an extension of the test framework to allow NaN/Inf in histogram buckets.
---------
Signed-off-by: Neeraj Gartia <neerajgartia211002@gmail.com>
PromQL engine: Delay deletion of __name__ label to the end of the query evaluation
- This change allows optionally preserving the `__name__` label via the `label_replace` and `label_join` functions, and helps prevent the dreaded "vector cannot contain metrics with the same labelset" error.
- The implementation extends the `Series` and `Sample` structs with a boolean flag indicating whether the `__name__` label should be deleted at the end of the query evaluation.
- The `label_replace` and `label_join` functions can still access the value of the `__name__` label, even if it has been previously marked for deletion. If `__name__` is used as target label, it won't be dropped at the end of the query evaluation.
- Fixes https://github.com/prometheus/prometheus/issues/11397
- See https://github.com/jcreixell/prometheus/pull/2 for previous discussion, including the decision to create this PR and benchmark it before considering other alternatives (like refactoring `labels.Labels`).
- See https://github.com/jcreixell/prometheus/pull/1 for an alternative implementation using a special label instead of boolean flags.
- Note: a feature flag `promql-delayed-name-removal` has been added as it changes the behavior of some "weird" queries (see https://github.com/prometheus/prometheus/issues/11397#issuecomment-1451998792)
Example (this always fails, as `__name__` is being dropped by `count_over_time`):
```
count_over_time({__name__!=""}[1m])
=> Error executing query: vector cannot contain metrics with the same labelset
```
Before:
```
label_replace(count_over_time({__name__!=""}[1m]), "__name__", "count_$1", "__name__", "(.+)")
=> Error executing query: vector cannot contain metrics with the same labelset
```
After:
```
label_replace(count_over_time({__name__!=""}[1m]), "__name__", "count_$1", "__name__", "(.+)")
=>
count_go_gc_cycles_automatic_gc_cycles_total{instance="localhost:9090", job="prometheus"} 1
count_go_gc_cycles_forced_gc_cycles_total{instance="localhost:9090", job="prometheus"} 1
...
```
Signed-off-by: Jorge Creixell <jcreixell@gmail.com>
---------
Signed-off-by: Jorge Creixell <jcreixell@gmail.com>
Signed-off-by: Björn Rabenstein <github@rabenste.in>
Some test queries need their interval adjusted to account for
https://github.com/prometheus/prometheus/pull/13904. Otherwise the
queries don't return enough samples.
promql/engine_test.go:TestHistogramCopyFromIteratorRegression needed the
same, but also the result needed a fix since `increase` interpolates
over the full range.
Signed-off-by: Jan Fajerski <jfajersk@redhat.com>
Björn Rabenstein