As Erick suggests, you should setup an empty 6.x environment, create an empty collection with shards=5 replicationFactor=3 and then re-index all your content from your data source. Once that is in, you can decommission your old cluster.
-- Jan Høydahl, search solution architect Cominvent AS - www.cominvent.com > 7. okt. 2016 kl. 09.55 skrev Neeraj Bhatt <neerajbhatt2...@gmail.com>: > > Hi Eric > > Thanks for suggestion I was able to upgrade one shard one replica data from > 4.1 to 6.2 through index upgrader, but the new problem is since we were > using solr cloud with multiple shards(5) with some replication (3) so do I > need to manually copy all index directory data for each shard upgrade and > for each replica and place it in new index directory of solr 6.2 ? > > This seems to be error prone as there will be 15 index directories > > thanks > > On Tue, Oct 4, 2016 at 8:35 AM, Erick Erickson <erickerick...@gmail.com> > wrote: > >> the very easiest way is to re-index. 10M documents shouldn't take >> very long unless they're no longer available... >> >> When you say you tried to use the index upgrader, which one? You'd >> have to use the one distributed with 5.x to upgrade from 4.x->5.x, then >> use the one distributed with 6x to go from 5.x->6.x. >> >> >> Best, >> Erick >> >> On Mon, Oct 3, 2016 at 8:01 PM, Neeraj Bhatt <neerajbhatt2...@gmail.com> >> wrote: >>> Hello All >>> >>> We are trying to upgrade our production solr with 10 million documents >> from >>> solr cloud (5 shards, 5 nodes, one collection, 3 replica) 4.1 to 6.2 >>> >>> How to upgrade the lucene index created by solr. Should I go into indexes >>> created by each shard and upgrade and replicate it manually ? Also I >> tried >>> using Index upgrader in one replica of one shard as a test but it gives >>> error as it is looking for _4c.si file and it is not there >>> >>> Any idea what is the easy way to upgrade solr cloud with a 10m repsoitory >>> >>> Thanks >>> neeraj >>
