We are using Solr 5.2.1 and JDK 7. We do create a static index in one cluster (solr cluster 1) and ship that index to another cluster (Solr cluster 2). Solr Cluster 2 is the one where queries will be fired.
Due to some unavoidable reasons, we want to upgrade Solr Cluster 1 to JDK 8. But, we can't upgrade Solr cluster 2 to JDK 8 in near future. Does the backed up index from Solr cluster 1 which uses JDK 8 works when restored in Solr cluster 2 which uses JDK 7?
