Hi Ofer, We recently helped a customer go through just such an upgrade (or maybe even from 1.3.*). We used a tool that read data from one index and indexed it to the new index without having to reindex the data from the original sources. All fields in the source index were obviously stored. :)
Otis ---- Sematext :: http://sematext.com/ :: Solr - Lucene - Nutch Lucene ecosystem search :: http://search-lucene.com/ ----- Original Message ---- > From: Ofer Fort <o...@tra.cx> > To: "solr-user@lucene.apache.org" <solr-user@lucene.apache.org> > Sent: Fri, April 22, 2011 10:34:26 AM > Subject: Re: Index upgrade from 1.4.1 to 3.1 and 4.0 > > Nobody? > Am I the only one in need of upgrading an index that was created with 1.4.1? > > Thanks for any info > Ofer > > On Friday, April 22, 2011, Ofer Fort <o...@tra.cx> wrote: > > Hi all, > > While doing some tests, I realized that an index that was created with > > solr 1.4.1 is readable by solr 3.1, but nt readable by solr 4.0. > > If I plan to migrate my index to 4.0, and I prefer not to reindex it > > all, what would be my best course of action? > > Will it be possible to continue to write to the index with 3.1? Will > > that make it readable from 4.0 or only the newly created segments? > > If I optimize it using 3.1, will that make it readable also from 4.0? > > Thanks > > Ofer > > >
