For saving Memory: 1. allocate as much memory to the JVM (especially if you are using 64bit OS) 2. You can set "omitNorms=true" for your date & id fields (actually for all fields where index-time boosting & length normalization isn't required. This will require a full reindex) 3. Are you sorting on all document available in index. Try to limit it using filter queries. 4. Avoid match all docs query like, q=*:* (if you are using this) 5. If you could do away with sorting on ID field, and sort on field with lesser unique terms
Hope this helps -- View this message in context: http://lucene.472066.n3.nabble.com/Out-of-memory-on-sorting-tp2960578p2988336.html Sent from the Solr - User mailing list archive at Nabble.com.