On Jan 28, 2010, at 6:03 AM, kumarlimbu wrote: > > Hi Everyone, > > We are currently using Lucene 1.9. We want to upgrade our application from > 1.9 to 2.9. The reasons for upgrade is we want to get better performance. > > What we are unsure of is whether a Lucene index created using version 1.9 > will be compatible with a new application built using lucene 2.9? Are they > compatible or we are required to recreate the index again with the newer > version of Lucene.
I doubt anyone has tried this, so your best bet will be to test it. It is probably more likely to be successful if you can go from 1.9->2.0 ->2.9, but even that isn't a guarantee depending on some of the back compatibility breaks that have occurred. How hard would it be to simply re-index? > > Thanks in advance. > -- > View this message in context: > http://old.nabble.com/Lucene-index-compatibility-tp27354221p27354221.html > Sent from the Lucene - General mailing list archive at Nabble.com. > -------------------------- Grant Ingersoll http://www.lucidimagination.com/ Search the Lucene ecosystem using Solr/Lucene: http://www.lucidimagination.com/search
