I don't recall what Nutch does, so it's hard to tell. In Solr (Lucene, really), you can: * add documents * update documents * delete documents
Currently, update is really a delete + readd under the hood. It's been like that for 13+ years, but this may change: https://issues.apache.org/jira/browse/LUCENE-4258 Otis -- Solr & ElasticSearch Support http://sematext.com/ On Wed, Apr 3, 2013 at 9:15 PM, Furkan KAMACI <furkankam...@gmail.com> wrote: > OK, This could be a so easy question but I want to learn just a bit more > technical detail of it. > When I use Nutch to send documents to Solr to be indexing there are two > parameters: > > -index and -reindex. > > What Solr does at each one different from the other one?