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From Jack Schlederer <>
Subject Restoring and upgrading a standalone index to SolrCloud
Date Wed, 03 Oct 2018 15:42:40 GMT

We currently run Solr 5.4 as our production search backend. We run it in a
master/slave replication architecture, and we're starting an upgrade to
Solr 7.5 using a SolrCloud architecture.

One of our collections is around 20GB and hosts about 200M documents, and
it would take around 6 hours to do a full dataimport from the database, so
we'd like to upgrade the index and restore it to SolrCloud. I've
successfully upgraded the Lucene 5 index to Lucene 6, and then to Lucene 7,
so I think I have an index that can be restored to Solr 7. Do you know if
it's possible to restore an index like this to a SolrCloud environment if I
can get it into a directory that is shared by all the nodes?


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