On Thu, Feb 9, 2017 at 6:58 AM, Bryant, Michael <michael.bry...@kcl.ac.uk> wrote: > Hi all, > > I'm converting my legacy facets to JSON facets and am seeing much better > performance, especially with high cardinality facet fields. However, the one > issue I can't seem to resolve is excessive memory usage (and OOM errors) when > trying to simulate the effect of "group.facet" to sort facets according to a > grouping field.
Yeah, I sort of expected this... but haven't gotten around to implementing something that takes less memory yet. If you're faceting on A and sorting by unique(B), then memory use is O(cardinality(A)*cardinality(B)) We can definitely do a lot better. -Yonik
