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changelog: Cloud output v2 #3161

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Aug 10, 2023
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changelog: Cloud output v2 #3161

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changelog: Cloud output entry
codebien Jul 4, 2023
10123c9
Squashing cloud output v2 changelog
olegbespalov Aug 10, 2023
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Mentioning the binary format
codebien Aug 10, 2023
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33 changes: 12 additions & 21 deletions release notes/v0.46.0.md
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Expand Up @@ -82,9 +82,19 @@ if (__ITER === 0) {

Thanks @chrismoran-mica for contribution 🙇‍♂️.

### `<big_feature_1>` `#pr`
### Cloud Output v2 [#3117](https://github.com/grafana/k6/issues/3117)

_what, why, and what this means for the user_
After years of great service, we decided to refresh the k6 Cloud output introducing a more efficient end-to-end solution for ingesting the generated tests' metrics. The main change regards the protocol used for flushing metrics that is now a binary based payload over HTTP.

The new output reduces the load generators' used resources for tests that produce many metrics. There is no significant difference in the user experience; it's expected to be the same.

The one thing worth highlighting is that the new output is strict about tags and drops tags if they are reserved:
- `test_run_id` as it is reserved for internal k6 Cloud operations
- any tag with a key that starts with two underscores (`__`), that is marked by Prometheus convention as reserved

At the moment this is not yet the default Cloud output for the test runs executed from local machines (`k6 run -o cloud`), but it is expected to be transparently enabled in the upcoming weeks.

The full list of related PRs: [#3104](https://github.com/grafana/k6/pull/3104), [#3108](https://github.com/grafana/k6/pull/3108), [#3120](https://github.com/grafana/k6/pull/3120), [#3125](https://github.com/grafana/k6/pull/3125), [#3162](https://github.com/grafana/k6/pull/3162), [#3169](https://github.com/grafana/k6/pull/3169), [#3182](https://github.com/grafana/k6/pull/3182), [#3186](https://github.com/grafana/k6/pull/3186), [#3187](https://github.com/grafana/k6/pull/3187), [#3193](https://github.com/grafana/k6/pull/3193), [#3195](https://github.com/grafana/k6/pull/3195), [#3206](https://github.com/grafana/k6/pull/3206), [#3226](https://github.com/grafana/k6/pull/3226), [#3157](https://github.com/grafana/k6/pull/3157), [#3172](https://github.com/grafana/k6/pull/3172).

### `<big_feature_n>` `#pr`

Expand All @@ -95,7 +105,6 @@ _what, why, and what this means for the user_
_Format as `<number> <present_verb> <object>. <credit>`_:
- _`#999` Gives terminal output prettier printing. Thanks to `@person` for the help!_

- [#3157](https://github.com/grafana/k6/pull/3157) and [#3172](https://github.com/grafana/k6/pull/3172) Add a `MaxTimeSeriesInBatch` configuration option.
- [#3176](https://github.com/grafana/k6/pull/3176) Adds a `js/promises` package, which enables extension developers to easily create promises that will be dispatched to the eventloop using the `New` function.
- [#3181](https://github.com/grafana/k6/pull/3181) Adds a `RunOnEventLoop` method to the `modulestest.Runtime` type, which allows extensions developers to run code on the event loop from their tests.

Expand All @@ -116,24 +125,6 @@ _Format as `<number> <present_verb> <object>. <credit>`_:
- [#3131](https://github.com/grafana/k6/pull/3131) Updates our Pull Request template to be more structured and include a checklist for contributors.
- [#3177](https://github.com/grafana/k6/pull/3177) Updates the version of golangci-lint we use to the latest version.

### Cloud output v2

// TODO @codebien

* [3104](https://github.com/grafana/k6/pull/3104) Retry and flushers pool
* [3108](https://github.com/grafana/k6/pull/3108) Flush chunks
* [3120](https://github.com/grafana/k6/pull/3120) Unlimited size for body payload
* [3125](https://github.com/grafana/k6/pull/3125) Use a static remote service url
* [3162](https://github.com/grafana/k6/pull/3162) Warn about labels that have reserved names
* [3169](https://github.com/grafana/k6/pull/3169) Compact histogram
- [#3182](https://github.com/grafana/k6/pull/3182) Fix off-by-one error for spans
- [#3186](https://github.com/grafana/k6/pull/3186) Be less noisy when handling errors
- [#3187](https://github.com/grafana/k6/pull/3187) Create batches for single bucket flush
- [#3193](https://github.com/grafana/k6/pull/3193) Downscale the batch size
- [#3195](https://github.com/grafana/k6/pull/3195) Make sure to use the overwritten config
- [#3206](https://github.com/grafana/k6/pull/3206) Implement concurrent pushes accross batches
- [#3226](https://github.com/grafana/k6/pull/3226) don't go over maxSeriesInBatch

## _Optional_ Roadmap

_Discussion of future plans_
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