I did the process from 4.0 to 4.10 (I have disk docValues in my index) with a IndexUpgrader tool. Indeed, I don't know if from 1.4 to 4.10 this process works ... But googling a bit I found this http://stackoverflow.com/questions/25450865 /migrate-solr-1-4-index-files-to-4-7 Is like Erick said, you will need to do this process in several steps before reach 5.x \--
/Yago Riveiro  On Jun 1 2016, at 5:22 pm, Erick Erickson <erickerick...@gmail.com> wrote: > https://lucene.apache.org/core/4_1_0/core/org/apache/lucene/index/IndexUpgra der.html > > I'm not sure how far back this tool will work, i.e. I don't know if it'll successfully go from 1.4 -> 5.x. You may have to pull a Solr 3x version to upgrade from 1.4->3x, then a 4x version to upgrade 3x->4x and then finally a 5x version 4x->5x. If the IndexUpgraderTool even existed in 3x (that was a long time ago!). > > You can get old Solr versions here: <http://archive.apache.org/dist/lucene/solr/> > > Best, Erick > > On Wed, Jun 1, 2016 at 8:57 AM, <t...@sina.com> wrote: > Hi, Yago, > Could you tell me the IndexUpgrade tool exactly? It is a tool released in the Solr binary or some command line? > ThanksLiu Peng > > \----- 原始邮件 ----- > 发件人：Yago Riveiro <yago.rive...@gmail.com> > 收件人：solr-user <solr-user@lucene.apache.org>, solr- u...@lucene.apache.org, t...@sina.com > 主题：Re: Can Solr 5.5 recognize the index result generated by SolrIndexer of old version Nutch ? > 日期：2016年06月01日 17点58分 > > > > > You need to upgrade your index to version 4.10 using the IndexUpgrade tool. > > > \-- > > Yago Riveiro > > > On 1 Jun 2016 10:53 +0100, t...@sina.com, wrote: > > Hi, > > We plan to upgrade the solr server to 5.5.0. And we have a customized crawler based on Nutch 1.2 and Solr 1.4.1. > > > > So, the question is: can Solr 5.5 recognize the index result generated by SolrIndexer of Nutch 1.2? > > Thanks > > > > >
