[ML] Reduce ml async bundle loading on Kibana page load

[walterra]

Summary

WORK IN PROGRESS

Checklist

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• Any text added follows EUI's writing guidelines, uses sentence case text and includes i18n support
• Documentation was added for features that require explanation or tutorials
• Unit or functional tests were updated or added to match the most common scenarios
• Flaky Test Runner was used on any tests changed
• Any UI touched in this PR is usable by keyboard only (learn more about keyboard accessibility)
• Any UI touched in this PR does not create any new axe failures (run axe in browser: FF, Chrome)
• If a plugin configuration key changed, check if it needs to be allowlisted in the cloud and added to the docker list
• This renders correctly on smaller devices using a responsive layout. (You can test this in your browser)
• This was checked for cross-browser compatibility

Risk Matrix

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Before closing this PR, invite QA, stakeholders, and other developers to identify risks that should be tested prior to the change/feature release.

When forming the risk matrix, consider some of the following examples and how they may potentially impact the change:

Risk	Probability	Severity	Mitigation/Notes
Multiple Spaces—unexpected behavior in non-default Kibana Space.	Low	High	Integration tests will verify that all features are still supported in non-default Kibana Space and when user switches between spaces.
Multiple nodes—Elasticsearch polling might have race conditions when multiple Kibana nodes are polling for the same tasks.	High	Low	Tasks are idempotent, so executing them multiple times will not result in logical error, but will degrade performance. To test for this case we add plenty of unit tests around this logic and document manual testing procedure.
Code should gracefully handle cases when feature X or plugin Y are disabled.	Medium	High	Unit tests will verify that any feature flag or plugin combination still results in our service operational.
See more potential risk examples

For maintainers

• This was checked for breaking API changes and was labeled appropriately

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[kibana-ci]

💔 Build Failed

• Buildkite Build
• Commit: f729092
• Interpreting CI Failures
• Storybooks Preview

Failed CI Steps

• Jest Tests #10
• Jest Tests #10
• Jest Tests #14
• Jest Tests #14
• Check Types

Test Failures

• [job] [logs] Jest Tests #10 / anomaly_scores show a popover on a mouse click
• [job] [logs] Jest Tests #10 / anomaly_scores show a popover on a mouse click
• [job] [logs] Jest Tests #10 / anomaly_scores showing a popover on a mouse click
• [job] [logs] Jest Tests #10 / anomaly_scores showing a popover on a mouse click
• [job] [logs] Jest Tests #10 / create_description_list it calls the narrow date range function on click
• [job] [logs] Jest Tests #10 / create_description_list it calls the narrow date range function on click
• [job] [logs] Jest Tests #10 / create_description_list it should call the narrow date range with the interval
• [job] [logs] Jest Tests #10 / create_description_list it should call the narrow date range with the interval
• [job] [logs] Jest Tests #10 / create_description_list it should the narrow date range with the score
• [job] [logs] Jest Tests #10 / create_description_list it should the narrow date range with the score
• [job] [logs] Jest Tests #10 / create_explorer_link it returns expected link
• [job] [logs] Jest Tests #10 / create_explorer_link it returns expected link

Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
apm	1866	1881	+15
infra	1502	1522	+20
ml	2038	2039	+1
securitySolution	5814	5829	+15
total			+51

Public APIs missing comments

Total count of every public API that lacks a comment. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats comments for more detailed information.

id	before	after	diff
@kbn/ml-embeddables	-	6	+6
@kbn/ml-locator	-	31	+31
@kbn/ml-ui-actions	18	20	+2
ml	67	55	-12
total			+27

Any counts in public APIs

Total count of every any typed public API. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats any for more detailed information.

id	before	after	diff
@kbn/ml-locator	-	2	+2

Async chunks

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

id	before	after	diff
apm	3.4MB	3.4MB	+3.2KB
infra	1.6MB	1.6MB	+30.0B
ml	4.6MB	4.5MB	-59.5KB
securitySolution	20.4MB	20.4MB	+15.8KB
total			-40.5KB

Public APIs missing exports

Total count of every type that is part of your API that should be exported but is not. This will cause broken links in the API documentation system. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats exports for more detailed information.

id	before	after	diff
@kbn/ml-locator	-	4	+4
ml	102	101	-1
total			+3

Page load bundle

Size of the bundles that are downloaded on every page load. Target size is below 100kb

id	before	after	diff
ml	76.0KB	74.3KB	-1.7KB

Unknown metric groups

API count

id	before	after	diff
@kbn/ml-embeddables	-	6	+6
@kbn/ml-locator	-	33	+33
@kbn/ml-ui-actions	18	20	+2
ml	154	141	-13
total			+28

async chunk count

id	before	after	diff
ml	110	107	-3

History

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@elasticmachine merge upstream