I tried to migrate the caching solution for our custom external DAM connector to the build-in cache mechanism, instead of using the Caffeine library. I was hoping to give us thus easier controll over manual initiated cache flushes.

However i had to discover that all read/write operations are blocking and thus requests which load a lot of assets became unbarably slow, as well as throwing a lot of exceptions about caches beeing locked. This is certainly nothing one wants to deal with when trying to optimize such operations and the documentation (https://docs.magnolia-cms.com/product-docs/6.2/Modules/List-of-modules/Cache-modules/Caching-arbitrary-objects.html) should mention this.

Idealy the underlying issue of the caches probally hving multi-threading issues, should be solved