On 2/22/2021 1:50 PM, Stephen Lewis Bianamara wrote:
<big snip>
(a) At what version did the caffeine cache reach production stability?
(b) Is the caffeine cache, and really all implementations, able to be used
on any cache, or are the restrictions about which cache implementations may
be used for which cache? If the latter, can you provide some guidance?
The caffiene-based cache was introduced in Solr 8.3. It was considered
viable for production from the time it was introduced.
https://issues.apache.org/jira/browse/SOLR-8241
Something was found and fixed in 8.5. I do not know what the impact of
that issue was:
https://issues.apache.org/jira/browse/SOLR-14239
The other cache implementations were deprecated at some point. Those
implementations have been removed from the master branch, but still
exist in the code for 8.x versions.
If you want to use one of the older implementations like FastLRUCache,
you still can, and will be able to for all future 8.x versions. When
9.0 is released at some future date, that will no longer be possible.
The Caffeine-based implementation is probably the best option, but I do
not have any concrete data to give you.
Thanks,
Shawn
