Hi Erick/Robi, Thanks for your replies! one more question, if I go with solrcloud and having PULL/TLOG replication mixed in the cluster, by the documentation, this would have Master/Slave mode benefit as well, does that seem feasible to you? are there any projects adopting this new feature in 7.0/7.1 ?
Thanks Drooy On Thu, Dec 14, 2017 at 7:15 PM, Erick Erickson <erickerick...@gmail.com> wrote: > Completely agree with Robert. I'd also add that you should _not_ copy > your configs from 4x. Start with the 7x configs and add any > customizations but don't change things like luceneMatchVersion and the > like. > > If you simply _cannot_ reindex, take a look at > https://github.com/cominvent/solr-tools/blob/master/ > upgradeindex/upgradeindex.sh > > On Thu, Dec 14, 2017 at 2:24 PM, Petersen, Robert (Contr) > <robert.peters...@ftr.com> wrote: > > From what I have read, you can only upgrade to the next major version > number without using a tool to convert the indexes to the newer version. > But that is still perilous due to deprications etc > > > > > > So I think best advice out there is to spin up a new farm on 7.1 > (especially from 4.x), make a new collection there, reindex everything into > it and then switch over to the new farm. I would also ask the question are > you thinking to go to master/slave on 7.1? Wouldn't you want to go with > solr cloud? > > > > > > I started with master/slave and yes it is simpler but there is that one > single point of failure (the master) for indexing, which is of course > easily manually overcome by purposing a slave as the new master and > repointing the remaining slaves at the new master however this is a > completely manual process you try to avoid in cloud mode. > > > > > > I think you'd need to think this through more fully with the new > possibilities available and how you'd want to migrate given your existing > environment is so far behind. > > > > > > Thanks > > > > Robi > > > > ________________________________ > > From: Drooy Drooy <drooy2...@gmail.com> > > Sent: Thursday, December 14, 2017 1:27:53 PM > > To: solr-user@lucene.apache.org > > Subject: Solr upgrade from 4.x to 7.1 > > > > Hi All, > > > > We have an in-house project running in Solr 4.7 with Master/Slave mode > for > > a few years, what is it going to take to upgrade it to SolrCloud with > > TLOG/PULL replica mode ? > > > > I read the upgrade guides, none of them talking about the jump from 4.x > to > > 7. > > > > Thanks much > > > > ________________________________ > > > > This communication is confidential. Frontier only sends and receives > email on the basis of the terms set out at http://www.frontier.com/email_ > disclaimer. >
