Hi SOLR Community, Just following up here with an update. I found this article which goes into depth on the field cache though stops short of discussing how it handles eviction. Can anyone confirm if this info is right?
https://lucidworks.com/post/scaling-lucene-and-solr/ Also, can anyone speak to how the field cache handles evictions? Best, Stephen On Wed, Feb 24, 2021 at 4:43 PM Stephen Lewis Bianamara < stephen.bianam...@gmail.com> wrote: > Hi SOLR Community, > > I've been trying to understand how the field cache in SOLR manages > its evictions, and it is not easily readable from the code or documentation > the simple question of when and how something gets evicted from the field > cache. This cache also doesn't show hit ratio, total hits, eviction ratio, > total evictions, etc... in the web UI. > > For example: I've observed that if I write one document and trigger a > query with a sort on the field, it will generate two entries in the field > cache. Then if I repush the document, the entries get removed, but will > otherwise stay there seemingly forever. If my query matches 2 docs, same > thing but with 4 entries (2 each). Then, if I rewrite one of the docs, > those two entries go away but not the two from the first one. This > obviously implies that there are implications to write throughput > performance based on this cache, so the fact that it is not configurable by > the user and doesn't have very clear documentation is a bit worrisome. > > Can someone here help out and explain how the filter cache handles > evictions, or perhaps send me the documentation if I missed it? > > > Thanks! > Stephen >
