This isn’t quite right. Solr will rewrite _all_ segments that have _any_ deleted documents in them when optimizing, even one. Given your description, I’d guess that all your segments will have deleted documents, so even if you do specify maxSegments on the optimize command, the entire index will be rewritten.
You’re in a bind, see: https://lucidworks.com/2017/10/13/segment-merging-deleted-documents-optimize-may-bad/. You have this one massive segment and it will _not_ be merged until it’s almost all deleted documents, see the link above for a fuller explanation. Prior to Solr 7.5 you don’t have many options except to re-index and _not_ optimize. So if possible I’d reindex from scratch into a new collection and do not optimize. Or restructure your process such that you can optimize in a quiet period when little indexing is going on. Best, Erick > On Jun 7, 2019, at 2:51 AM, jena <sthita2...@gmail.com> wrote: > > Thanks @Nicolas Franck for reply, i don't see any any segment info for 4.4 > version. Is there any API i can use to get my segment information ? Will try > to use maxSegments and see if it can help us during optimization. > > > > -- > Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html
