A classic on the importance of prototyping with your data and on the intractability of sizing in the abstract:
https://lucidworks.com/blog/sizing-hardware-in-the-abstract-why-we-dont-have-a-definitive-answer/ This might be of use: https://svn.apache.org/repos/asf/lucene/dev/trunk/dev-tools/size-estimator-lucene-solr.xls but note this thread: https://mail-archives.apache.org/mod_mbox/lucene-java-user/201503.mbox/%3cCALZAj3KMiStgiFZb=RTAEqDg8dpPYcmaj25T26Hi+=c7cal...@mail.gmail.com%3e perhaps: http://docs.alfresco.com/4.1/concepts/solrnodes-memory.html -----Original Message----- From: Sznajder ForMailingList [mailto:bs4mailingl...@gmail.com] Sent: Wednesday, May 27, 2015 12:34 PM To: solr-user@lucene.apache.org Subject: HW requirements Hi , Could you give me some hints wrt HW requirements for Solr if I need to index about 400 Gigas of text? Thanks Benjamin