I also want to add one other things. I had moved from a single core solr instance on solr 6.6 to the solr cloud few months back. I had ran the indexupgrader tool on the indexes before I moved them to the solr cloud.
On Wed, Sep 19, 2018 at 7:29 PM Shawn Heisey <apa...@elyograg.org> wrote: > On 9/19/2018 8:22 PM, Schaum Mallik wrote: > > I have a 3 zookeeper ensemble and 3 solr nodes running version 7.4.0. > > Recently I had to restart one node and after I did that it started > throwing > > this exception. > <snip> > > Caused by: org.apache.solr.common.SolrException: No coreNodeName > > for > > > CoreDescriptor[name=articles;instanceDir=/opt/solr/server/solr/configsets/articles] > > It is VERY weird for instanceDir to be under the configsets directory. > Especially for SolrCloud. I know you're in cloud mode because the > ZK-related classes are heavily mentioned in the stacktrace. > > Can you share the entire solr.log file after a restart? If that > directory really is the instanceDir, there should be a core.properties > file. What are its contents? > > Did you use the service installer script? If you did, having an > instanceDir underneath configsets is even MORE strange. > > Thanks, > Shawn > >