* Implement Pretty() function for AST nodes.
Signed-off-by: Harkishen-Singh <harkishensingh@hotmail.com>
This commit adds .Pretty() for all nodes of PromQL AST.
Each .Pretty() prettifies the node it belongs to, and under
no circustance, the parent or child node is touch/prettified.
Read more in the "Approach" part in `prettier.go`
* Refactor functions between printer.go & prettier.go
Signed-off-by: Harkishen-Singh <harkishensingh@hotmail.com>
This commit removes redundancy between printer.go and prettier.go
by taking out the common code into separate private functions.
* Add more unit tests for Prettier.
Signed-off-by: Harkishen-Singh <harkishensingh@hotmail.com>
* Add support for spliting function calls with 1 arg & unary expressions.
Signed-off-by: Harkishen-Singh <harkishensingh@hotmail.com>
This commit does 2 things:
1. It adds support to split function calls that have 1 arg and exceeds the max_characters_per_line
to multiple lines.
2. Splits Unary expressions that exceed the max_characters_per_line. This is done by formatting the child node
and then removing the prefix indent, which is already applied before the unary operator.
This follow a simple function-based approach to access the count and
sum fields of a native Histogram. It might be more elegant to
implement “accessors” via the dot operator, as considered in the
brainstorming doc [1]. However, that would require the introduction of
a whole new concept in PromQL. For the PoC, we should be fine with the
function-based approch. Even the obvious inefficiencies (rate'ing a
whole histogram twice when we only want to rate each the count and the
sum once) could be optimized behind the scenes.
Note that the function-based approach elegantly solves the problem of
detecting counter resets in the sum of observations in the case of
negative observations. (Since the whole native Histogram is rate'd,
the counter reset is detected for the Histogram as a whole.)
We will decide later if an “accessor” approach is really needed. It
would change the example expression for average duration in
functions.md from
histogram_sum(rate(http_request_duration_seconds[10m]))
/
histogram_count(rate(http_request_duration_seconds[10m]))
to
rate(http_request_duration_seconds.sum[10m])
/
rate(http_request_duration_seconds.count[10m])
[1]: https://docs.google.com/document/d/1ch6ru8GKg03N02jRjYriurt-CZqUVY09evPg6yKTA1s/edit
Signed-off-by: beorn7 <beorn@grafana.com>
* Run gofumpt on all files
Getting golangci-lint errors when building on my laptop, possibly because I have newer version of gofumpt then what it was formatted with.
Run gofumpt -w -extra on all files as it will be needed in the future anyway.
* Update golangci-lint to v1.44.2
v1.44.0 upgraded gofumpt so bumping version in CI will help keep formatting correct for everyone
* Address golangci-lint error
Getting 'error-strings: error strings should not be capitalized or end with punctuation or a newline' from revive here.
Drop new line.
Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>
This creates a new `model` directory and moves all data-model related
packages over there:
exemplar labels relabel rulefmt textparse timestamp value
All the others are more or less utilities and have been moved to `util`:
gate logging modetimevfs pool runtime
Signed-off-by: beorn7 <beorn@grafana.com>
* Allow VectorSelector.String() without matchers
Previously this method was panicking because it was trying to allocate a
slice with capacity -1. There's nothing saying that VectorSelector
should have matchers, and it's actually prepared to have zero matcher
strings, so it's worth checking instead of panicking.
Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
* PromQL: Fix start and end keywords masking label and metric names
This commit fixes an issue with the "at modifier" that introduced two
new keywords: `start` and `end`. In grouping options and in metric
names, these keywords took precedence over metric or label names, so
that those metrics and labels could no longer be referenced.
Signed-off-by: Clayton Peters <clayton.peters@man.com>
* Add in additional tests for metrics and/or labels called start/end.
Signed-off-by: Clayton Peters <clayton.peters@man.com>
* *: Cut 2.29.0-rc.0
Signed-off-by: Frederic Branczyk <fbranczyk@gmail.com>
* VERSION: bump to 2.29.0-rc.0
Signed-off-by: Frederic Branczyk <fbranczyk@gmail.com>
* Remove experimental wording on size-based retention
Followup of #9004
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
* Fix PR reference in changelog
Signed-off-by: George Brighton <george@gebn.co.uk>
* Describe EC2 availability zone IDs at most once per refresh (#9142)
Signed-off-by: George Brighton <george@gebn.co.uk>
* Describe EC2 availability zones at most once per SD load
Closes#9142.
Signed-off-by: George Brighton <george@gebn.co.uk>
* Incorporate feedback
Signed-off-by: George Brighton <george@gebn.co.uk>
* Integrate feedback
Signed-off-by: George Brighton <george@gebn.co.uk>
* Add a compatibility note for macOS users.
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
* *: Cut v2.29.0-rc.1
Signed-off-by: Frederic Branczyk <fbranczyk@gmail.com>
* Fix `kuma_sd` targetgroup reporting (#9157)
* Bundle all xDS targets into a single group
Signed-off-by: austin ce <austin.cawley@gmail.com>
* *: cut v2.29.0-rc.2
Signed-off-by: Frederic Branczyk <fbranczyk@gmail.com>
* Rename links
Signed-off-by: Levi Harrison <git@leviharrison.dev>
* bump codemirror-promql to 0.17.0
Signed-off-by: Augustin Husson <husson.augustin@gmail.com>
* *: cut v2.29.0
Signed-off-by: Frederic Branczyk <fbranczyk@gmail.com>
* tsdb: align atomically accessed int64 (#9192)
This prevents a panic in 32-bit archs:
https://pkg.go.dev/sync/atomic#pkg-note-BUGFixed#9190
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
* Release 2.29.1 (#9193)
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
Co-authored-by: Clayton Peters <clayton.peters@man.com>
Co-authored-by: Frederic Branczyk <fbranczyk@gmail.com>
Co-authored-by: George Brighton <george@gebn.co.uk>
Co-authored-by: Austin Cawley-Edwards <austin.cawley@gmail.com>
Co-authored-by: Levi Harrison <git@leviharrison.dev>
Co-authored-by: Augustin Husson <husson.augustin@gmail.com>
This commit adds `@ <timestamp>` modifier as per this design doc: https://docs.google.com/document/d/1uSbD3T2beM-iX4-Hp7V074bzBRiRNlqUdcWP6JTDQSs/edit.
An example query:
```
rate(process_cpu_seconds_total[1m])
and
topk(7, rate(process_cpu_seconds_total[1h] @ 1234))
```
which ranks based on last 1h rate and w.r.t. unix timestamp 1234 but actually plots the 1m rate.
Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>
For a sufficiently complex expression, having to render
thousands of nodes for every subquery type error can take
a while - so don't do that.
Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
* Testify: move to require
Moving testify to require to fail tests early in case of errors.
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
* More moves
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
* Refactor test assertions
This pull request gets rid of assert.True where possible to use
fine-grained assertions.
Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>
