Not a solution for the short term but sounds like a good use case to migrate
to Solr 4.X and use DocValues instead of FieldCache for faceting.
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I'm 99% sure that the deleted docs will indeed use up space in the field cache,
at least until the segments that those documents are in are merged - that is
what an optimize will do. Of course, these segments will automatically be
merged eventually, but it might take days for this to happen,
Hi,
70 GB heap and still OOMing? H sure, 14 fields for faceting,
but still - 70 GB heap!
Don't have source handy, but I quickly looked at FC src here -
http://search-lucene.com/c/Lucene:core/src/java/org/apache/lucene/search/FieldCache.java
- I see mentions of delete there, so I would
