: I was worried because when i used to use only Lucene for the same indexing, : before optimization there are many files but after optimization i always end : up with just 3 files in my index filder. Just want to find out if this was : ok.
It sounds like you were most likely using the "Compound File Format" (which causes multiple per-field files to be encapsultated into a single file per segment) when you were using Lucene directly (i believe it is the default) but in Solr you are not. check the "<useCompoundFile>" setting(s) in your solrconfig.xml https://lucene.apache.org/java/3_4_0/fileformats.html#Compound%20Files For most Solr users, the compound file format is a bad idea because it can decreases performance -- the only reason to use it is if you are in a heavily constraind setup where you need to be very restrictive about the number of open file handles. -Hoss
