That sounds like https://issues.apache.org/jira/browse/SOLR-11406 if i'm not mistaken?
-Stefan On Sep 27, 2017 8:20 PM, "Wayne L. Johnson" <wjohn...@familysearch.org> wrote: > I’m testing Solr 7.0.0. When I start with an empty index, Solr comes up > just fine, I can add documents and query documents. However when I start > with an already-populated set of documents (from 6.5.0), Solr will not > start. The relevant portion of the traceback seems to be: > > Caused by: java.lang.NullPointerException > > at java.util.Objects.requireNonNull(Objects.java:203) > > … > > at java.util.stream.ReferencePipeline.reduce( > ReferencePipeline.java:479) > > at org.apache.solr.index.SlowCompositeReaderWrapper.<init>( > SlowCompositeReaderWrapper.java:76) > > at org.apache.solr.index.SlowCompositeReaderWrapper.wrap( > SlowCompositeReaderWrapper.java:57) > > at org.apache.solr.search.SolrIndexSearcher.<init>( > SolrIndexSearcher.java:252) > > at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java: > 2034) > > ... 12 more > > > > In looking at the de-compiled code (SlowCompositeReaderWrapper), lines > 72-77, and it appears that one or more “leaf” files doesn’t have a > “min-version” set. That’s a guess. If so, does this mean Solr 7.0.0 can’t > read a 6.5.0 index? > > > > Thanks > > > > Wayne Johnson > > 801-240-4024 > > wjohnson...@ldschurch.org > > [image: familysearch2.JPG] > > >
