Thanks Shawn! This is great clarity, really appreciate it. I'll proceed to performance testing of the Caffeine Cache 🎉
Is there a Jira issue needed for tracking these two documentation updates ( here <https://lucene.apache.org/solr/guide/8_8/query-settings-in-solrconfig.html#filtercache> and here <https://github.com/apache/lucene-solr/blob/e732f943a4df1f2c0692ab475e136f4acc271f59/solr/server/solr/configsets/sample_techproducts_configs/conf/solrconfig.xml#L430-L432> )? On Mon, Feb 22, 2021 at 1:16 PM Shawn Heisey <apa...@elyograg.org> wrote: > 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 >
