Thank you very much for your prompt response. I really appreciate it! Rachid On Jul 12, 2016 17:13, "Shawn Heisey" <apa...@elyograg.org> wrote:
> On 7/12/2016 5:54 PM, Rachid Bouacheria wrote: > > I am running solr 4.10.4 and I would like to upgrade to the latest > version > > 6.1.0 > > > > The documentation I found provides steps to upgrade from 4.10.4 to 5.x > > And it seems like going from 4.x to 5.x is pretty consequent. > > Going from 5.x to 6.1.0 seems to be less effort but still non negligible. > > > > I am wondering if anyone had to do a similar upgrade? If so how did you > do > > it? Upgrade to 5.x and then to 6, or straight from 4.x to 6? > > Any tips or advice are welcome. > > The 6.1.0 version cannot read your 4.x indexes. It can read 5.x and > later indexes. > > If you can "upgrade" by setting up a new Solr install and reindexing > everything, that will always achieve the best results. This is how I do > upgrades. There's no need to worry about the old index format at all. > > If that's not possible, then you will need to convert your index to 5.x > format before upgrading to 6.x. You can do this by upgrading to a 5.x > version first and optimizing all your indexes, or you can use the > IndexUpgrader tool from Lucene, first from 5.x, and then from 6.x, to > upgrade your index in stages. > > https://cwiki.apache.org/confluence/display/solr/IndexUpgrader+Tool > > Thanks, > Shawn > >
