Klin, You need to use the new version's solrconfig.xml, with modifications as necessary. Start by looking at the current solrconfig, what was modified there?
Did you re-index? If you cannot reindex then you should upgrade to 5.n then to 6.m. Cheers -- Rick On October 24, 2017 11:21:48 PM EDT, SOLR4189 <klin892...@yandex.ru> wrote: >Before two days we upgraded our SOLR servers from 4.10.1 version to >6.5.1. We >explored logs and saw too many errors like: > >1) >org.apache.solr.common.SolrException; >null:java.lang.NullPointerException > at >org.apache.solr.search.grouping.distributed.responseprocessor.StoredFieldsShardResponseProcessor.process(StoredFieldsShardResponseProcessor.java:41) > at >org.apache.solr.handler.component.QueryComponent.handleGroupedResponses(QueryComponent.java:771) > . . . > >We don't know from which queries it throws. > >2) Second error or something strange that we saw in logs - sometimes >SOLR >service restarts automatically without any error > >Can somebody help to us? Does someone have problems like ours? > > > > >-- >Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html -- Sorry for being brief. Alternate email is rickleir at yahoo dot com