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Merge release-2.26.0 branch to main. (#8678) 

* Cut 2.26.0-rc.0 release. (#8640)

* Cut 2.26.0-rc.0

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Addressed comments.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Addressed comments.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Curate 2.26 changelog

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>

* bump codemirror-promql to v0.14.0 (#8653)

Signed-off-by: Augustin Husson <husson.augustin@gmail.com>

* fix: Wrap text in CodeMirror expression editor (#8665)

Fixes https://github.com/prometheus/prometheus/issues/8663

Signed-off-by: Julius Volz <julius.volz@gmail.com>

* Quick documentation of the exemplars feature on the disabled features (#8655)

page.

Signed-off-by: Callum Styan <callumstyan@gmail.com>

* Cut 2.26.0 (#8676)

* Cut 2.26.0-rc.1

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

* Moved to full release.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

Co-authored-by: Julien Pivotto <roidelapluie@inuits.eu>
Co-authored-by: Augustin Husson <husson.augustin@gmail.com>
Co-authored-by: Julius Volz <julius.volz@gmail.com>
Co-authored-by: Callum Styan <callumstyan@gmail.com>
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  1. 26
      CHANGELOG.md
  2. 2
      VERSION
  3. 8
      docs/disabled_features.md
  4. 2
      web/ui/react-app/package.json
  5. 5
      web/ui/react-app/src/App.css
  6. 1
      web/ui/react-app/src/pages/graph/CMExpressionInput.tsx
  7. 18
      web/ui/react-app/yarn.lock

26
CHANGELOG.md
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@ -1,3 +1,29 @@
## 2.26.0 / 2021-03-31
Prometheus is now built and supporting Go 1.16 (#8544). This reverts the memory release pattern added in Go 1.12. This makes common RSS usage metrics showing more accurate number for actual memory used by Prometheus. You can read more details [here](https://www.bwplotka.dev/2019/golang-memory-monitoring/).
Note that from this release Prometheus is using Alertmanager v2 by default.
* [CHANGE] Alerting: Using Alertmanager v2 API by default. #8626
* [CHANGE] Prometheus/Promtool: As agreed on dev summit, binaries are now printing help and usage to stdout instead of stderr. #8542
* [FEATURE] Remote: Add support for AWS SigV4 auth method for remote_write. #8509
* [FEATURE] Scaleway Discovery: Add Scaleway Service Discovery. #8555
* [FEATURE] PromQL: Allow negative offsets. Behind `--enable-feature=promql-negative-offset` flag. #8487
* [FEATURE] **experimental** Exemplars: Add in-memory storage for exemplars. Behind `--enable-feature=exemplar-storage` flag. #6635
* [FEATURE] UI: Add advanced auto-completion, syntax highlighting and linting to graph page query input. #8634
* [ENHANCEMENT] Digital Ocean Discovery: Add `__meta_digitalocean_image` label. #8497
* [ENHANCEMENT] PromQL: Add `last_over_time`, `sgn`, `clamp` functions. #8457
* [ENHANCEMENT] Scrape: Add support for specifying type of Authorization header credentials with Bearer by default. #8512
* [ENHANCEMENT] Scrape: Add `follow_redirects` option to scrape configuration. #8546
* [ENHANCEMENT] Remote: Allow retries on HTTP 429 response code for remote_write. Disabled by default. See [configuration docs](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#remote_write) for details. #8237 #8477
* [ENHANCEMENT] Remote: Allow configuring custom headers for remote_read. See [configuration docs](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#remote_read) for details. #8516
* [ENHANCEMENT] UI: Hitting Enter now triggers new query. #8581
* [ENHANCEMENT] UI: Better handling of long rule and names on the `/rules` and `/targets` pages. #8608 #8609
* [ENHANCEMENT] UI: Add collapse/expand all button on the `/targets` page. #8486
* [BUGFIX] TSDB: Eager deletion of removable blocks on every compaction, saving disk peak space usage. #8007
* [BUGFIX] PromQL: Fix parser support for special characters like`炬`. #8517
* [BUGFIX] Rules: Update rule health for append/commit fails. #8619
## 2.25.2 / 2021-03-16
* [BUGFIX] Fix the ingestion of scrapes when the wall clock changes, e.g. on suspend. #8601

2
VERSION
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@ -1 +1 @@
2.25.2
2.26.0

8
docs/disabled_features.md
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@ -46,3 +46,11 @@ More details can be found [here](querying/basics.md#offset-modifier).
The remote write receiver allows Prometheus to accept remote write requests from other Prometheus servers. More details can be found [here](storage.md#overview).
## Exemplars Storage
`--enable-feature=exemplar-storage`
[OpenMetrics](https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#exemplars) introduces the ability for scrape targets to add exemplars to certain metrics. Exemplars are references to data outside of the MetricSet. A common use case are IDs of program traces.
Exemplar storage is implemented as a fixed size circular buffer that stores exemplars in memory for all series. Enabling this feature will enable the storage of exemplars scraped by Prometheus. The flag `storage.exemplars.exemplars-limit` can be used to control the size of circular buffer by # of exemplars. An exemplar with just a `traceID=<jaeger-trace-id>` uses roughly 100 bytes of memory via the in-memory exemplar storage.

2
web/ui/react-app/package.json
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@ -29,7 +29,7 @@
"@types/react-resize-detector": "^5.0.0",
"@types/sanitize-html": "^1.20.2",
"bootstrap": "^4.2.1",
"codemirror-promql": "^0.13.0",
"codemirror-promql": "^0.14.0",
"css.escape": "^1.5.1",
"downshift": "^3.4.8",
"enzyme-to-json": "^3.4.3",

5
web/ui/react-app/src/App.css
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@ -32,8 +32,11 @@ input[type='checkbox']:checked + label {
text-transform: capitalize;
}
.expression-input {
/* Using a more specific selector here to be able to override Bootstrap's default input group styles. */
.input-group.expression-input {
margin-bottom: 10px;
/* Prevent the input group from wrapping around when the editor content is too long for a line. */
flex-wrap: nowrap;
}
.expression-input .cm-expression-input {

1
web/ui/react-app/src/pages/graph/CMExpressionInput.tsx
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@ -128,6 +128,7 @@ const CMExpressionInput: FC<CMExpressionInputProps> = ({
closeBrackets(),
autocompletion(),
highlightSelectionMatches(),
EditorView.lineWrapping,
keymap.of([
...closeBracketsKeymap,
...defaultKeymap,

18
web/ui/react-app/yarn.lock
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@ -3418,12 +3418,12 @@ coa@^2.0.2:
chalk "^2.4.1"
q "^1.1.2"
codemirror-promql@^0.13.0:
version "0.13.0"
resolved "https://registry.yarnpkg.com/codemirror-promql/-/codemirror-promql-0.13.0.tgz#5cfae3bf23522686dc8d8af0c02444d38df2662a"
integrity sha512-KM9Da+lY0p9A4/tMDx4TH8Fr8/4XSQK+yjcsJ2NT6QwJMwUP4IS2LHqzGS5Jx40eAJJU2U+R/Qh+PJrSF9tE0g==
codemirror-promql@^0.14.0:
version "0.14.0"
resolved "https://registry.yarnpkg.com/codemirror-promql/-/codemirror-promql-0.14.0.tgz#a5ad500e68a379ba6bded40ec0f9ff2940015bcd"
integrity sha512-CqjfzVehB1ES5fbw8cRtRXG8Ykhshctqsqn8VtHXUg+QAilGBHu6+jlC7neLHdyfsTvKNhvvzwsZgRKhQVR5qA==
dependencies:
lezer-promql "^0.17.0"
lezer-promql "^0.18.0"
lru-cache "^6.0.0"
collection-visit@^1.0.0:
@ -7412,10 +7412,10 @@ levn@^0.3.0, levn@~0.3.0:
prelude-ls "~1.1.2"
type-check "~0.3.2"
lezer-promql@^0.17.0:
version "0.17.0"
resolved "https://registry.yarnpkg.com/lezer-promql/-/lezer-promql-0.17.0.tgz#9dcd19f08f34dc8d82572cc7f4ed78f7256af8fe"
integrity sha512-2oU+SnUkBVPCdH9907XMweA9sAO1H1YmMtTR+4FW2QfIc/T7UtjYD6Yy+zxkCm/6zwq56AdWM4jYQpoUHS02dA==
lezer-promql@^0.18.0:
version "0.18.0"
resolved "https://registry.yarnpkg.com/lezer-promql/-/lezer-promql-0.18.0.tgz#7eea8cb02f8203043560415d7a436e9903176ab2"
integrity sha512-4ZQGyiU4JoL14rhtuAEmlSKHhu0dcBiLsqjF+RyouZNojUiLh6vyBFwrtPgAdD58s4j8+J21dOO/yUnaJvoGkw==
lezer-tree@^0.13.0, lezer-tree@^0.13.2:
version "0.13.2"

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