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