Hello! Let me answer the first part of your question. Please have a look at https://svn.apache.org/repos/asf/lucene/dev/trunk/dev-tools/size-estimator-lucene-solr.xls It should help you make an estimation about your index size.
-- Regards, Rafał Kuć Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch - ElasticSearch > This may not be a well detailed question but I will try to make it clear. > I am crawling web pages and will index them at SolrCloud 4.2. What I want > to predict is the index size. > I will have approximately 2 billion web pages and I consider each of them > will be 100 Kb. > I know that it depends on storing documents, stop words. etc. etc. If you > want to ask about detail of my question I may give you more explanation. > However there should be some analysis to help me because I should predict > something about what will be the index size for me. > On the other hand my other important question is how SolrCloud makes > replicas for indexes, can I change it how many replicas will be. Because I > should multiply the total amount of index size with replica size. > Here I found an article related to my analysis: > http://juanggrande.wordpress.com/2010/12/20/solr-index-size-analysis/ > I know this question may not be details but if you give ideas about it you > are welcome.