Hi All, I have SOLR 3.6 running currently, i am planning to upgrade this to SOLR 4.10. Below were the thoughts we could come up with.
1. in place upgrade I would be making the SOLR 4.10 slave of 3.6 and copy the indexes, and optimize this index. will optimizing the Lucene 3.3 index on SOLR 4 instance(with Lucene 4.10) change the index structure to Lucene 4.10? if not what would be the version? if i enable docvalues on certain fields before issuing optimize, will it be able to incorporate ( create .dvd & .dvm files ) that in the newly created index? 2. Re-Index the data Seeking advice for minimum time to upgrade this with most features of SOLR 4.10 Thanks in Advance Best Regards, Abhishek