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[8.x] [UA] Remove 7->8 multitype check (#203995) #204038

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merged 1 commit into from
Dec 12, 2024

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jloleysens
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Backport

This will backport the following commits from main to 8.x:

Questions ?

Please refer to the Backport tool documentation

## Summary

Removes the 7->8.x logic for detecting and warning users about custom
types. Specifically, we had a `GET index` call with `include_type_name`
that is no longer supported and would return mappings in the following,
deprecated, multitype form:

```jsonc
{
  "mappings": {
    "<type_name>": { "properties": {  /* properties */ } }
    }
}
```

Now you can only get:

```jsonc
{
  "mappings": {
    "properties": { /* properties */ }
}
```

...including `include_type_name` is causing a 400 response from ES,
blocking UA's ability to reindex. Existing code already handles both of
these forms bc it had to for 7.last, this PR just removes logic
targeting the former (and removes our outdated user-facing warning).

## Resources
* 7->8 removal notice
https://www.elastic.co/guide/en/elasticsearch/reference/7.17/removal-of-types.html
* old docs
https://www.elastic.co/guide/en/elasticsearch/reference/6.8/indices-get-index.html

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
(cherry picked from commit b525d00)

# Conflicts:
#	.github/CODEOWNERS
#	x-pack/plugins/upgrade_assistant/server/lib/reindexing/index_settings.ts
#	x-pack/plugins/upgrade_assistant/server/lib/reindexing/reindex_actions.ts
@jloleysens jloleysens merged commit ee7bbf9 into elastic:8.x Dec 12, 2024
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💚 Build Succeeded

Metrics [docs]

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id before after diff
upgradeAssistant 159.8KB 159.0KB -828.0B

@jloleysens jloleysens deleted the backport/8.x/pr-203995 branch December 16, 2024 12:31
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3 participants