We have a fairly large service catalogue and a growing Knowledge Base which for the most part both work totally fine. However recently (across a few versions of LDSD, current version 2016.1) I have seen that after heavy use parts of the system seem to lock up.
In the case of the Knowledge base, after lots of searches or new articles being created the search facility completely stops, basically never returns results (search at top right of analyst screen). Enter a search and the page just spins and never even times out.
In the case of the Service Catalogue, after numerous updates (saving of pages) we are still able to search but the save facility seems to be compromised and in the same way on hitting save the page just spins and never saves nor times out.
In both scenarios I have to either recycle the pools or restart IIS on the web server to return the normal functionality. I tried rebuilding both the KB and SC but this did not change the behaviour.
Does anyone have any ideas on what this could be? I've trawled the community but seem to be in a unique position.