
Hi @Hardie-8943,
Thanks for posting in Q&A and congratulations on solving this issue .
Here I will provide a summary of this post for your information.
[sharepoint search crawler get nothing from sharepoint local sites]
Expectation:
Search crawl can't get content from sharepoint local sites content source.
Run a full crawl, no error messages, however the crawl log still shows few content.
Result:
After troubleshooting by the customer, it is because the crawler can not crawl through haproxy HA.
The final solution is to put the hosts file in both search server.
You could accept it as answer and it will do great help to those who meet the similar question in this forum.