psoting on behalf of neoman, alt_schema.xml <http://lucene.472066.n3.nabble.com/file/n4103405/alt_schema.xml>
details about index Number of documents: 350 million number of shards: 4 number of nodes:8 replicatorFactor: 1(default/no additional replication). Total RAM on each server node: 16 GB number of documents per shard: close to 80 million. documents gets added to index every 15 mins in a batch job and yes, as you mentioned updates to documents is also happening -- View this message in context: http://lucene.472066.n3.nabble.com/Major-GC-does-not-reduce-the-old-gen-size-tp4096880p4103405.html Sent from the Solr - User mailing list archive at Nabble.com.