Thanks Shawn, will try and it out without re-indexing and see how that goes.
Nitin On Tue, Sep 23, 2014 at 9:00 AM, Shawn Heisey <s...@elyograg.org> wrote: > On 9/23/2014 8:40 AM, Nitin Agarwal wrote: > > Hi, we are planning for a Solr Cloud upgrade from 4.7.1 to 4.10. I have > > identified the following steps for the upgrade > > > > 1. Update solrconfig.xml to be compliant with 4.10. > > 2. Update the required jar files and war files from Solr 4.10 > distribution. > > 3. Verified we are using Java 1.7. > > > > Now comes the question of data - index, do I need to recreate the indexes > > from scratch, basically trunk and load or is there some other way to > > upgrade the indexes? > > All Solr 4.x versions will read the index from previous 4.x and 3.x > versions. It is recommended that you completely reindex for any > upgrade, but it should not be absolutely necessary. If that doesn't > work, it's either a bug or a result of config/schema changes. > > Thanks, > Shawn > >