Kibana - problem with highlighting

[lecztomek]

Kibana version: 8.10.2

Elasticsearch version: 8.10.2

Server OS version: Ubuntu 22.04.3 LTS

Browser version: Google Chrome Version 118.0.5993.88 (Official Build) (64-bit)

Browser OS version: Windows 10 Pro

Original install method (e.g. download page, yum, from source, etc.): docker-compose

Describe the bug:
When searching error occured:
Kibana - The content length is bigger than the maximum allowed string (536870888).
If Stack Management-> Advanced Settings -> Highlight results is false searching works correctly.

Steps to reproduce:

1. About 300 Documents each with text field "message" (each should has size around 4 MB)
2. In Discovery try to search some phrase existing in each documents.message
3. The content length is bigger than the maximum allowed string (536870888) error should appear
   (if count of searching results is to small errors not occured)
4. Change Stack Management-> Advanced Settings -> Highlight results to false
5. Try searching again

Expected behavior:
Highlighting should working correctly.

Screenshots (if relevant):

Errors in browser console (if relevant):

Provide logs and/or server output (if relevant):

Any additional context:

[elasticmachine]

Pinging @elastic/kibana-data-discovery (Team:DataDiscovery)

[lukasolson]

Hmm, I think this is less of an issue related to highlighting and more of an issue related to the size of your fields. When I ingest the data you've suggested, I run into the error regardless of whether highlighting is turned on or off. Can you provide screenshots showing with/without the error with the exact same data set by toggling highlighting?

Related: #98497

[lukasolson]

Closing for inactivity. Feel free to re-open if you can provide the details requested above.