Its rather strange stacktrace(at the bottom). An entire 10000+ dataset finishes up only to end up crashing & burning due to a log statement :)
Based on what I can tell from the stacktrace and the 4.x trunk source code, it seems that the follwoign log statement dies: //LogUpdateProcessorFactory.java:188 log.info( ""+toLog + " 0 " + (elapsed) ); Eventually at the strict cast: //NamedList.java:127 return (String)nvPairs.get(idx << 1); I was wondering what kind of mistaken data would I have ended up getting misplaced into: //LogUpdateProcessorFactory.java:76 private final NamedList<Object> toLog; To cause the java.util.ArrayList cannot be cast to java.lang.String issue? Could it be due to the multivalued fields that I'm trying to index? Is this a bug or just a mistake in how I use DIH, please let me know your thoughts! SEVERE: Full Import failed:java.lang.ClassCastException: java.util.ArrayList cannot be cast to java.lang.String at org.apache.solr.common.util.NamedList.getName(NamedList.java:127) at org.apache.solr.common.util.NamedList.toString(NamedList.java:263) at java.lang.String.valueOf(String.java:2826) at java.lang.StringBuilder.append(StringBuilder.java:115) at org.apache.solr.update.processor.LogUpdateProcessor.finish(LogUpdateProcessorFactory.java:188) at org.apache.solr.handler.dataimport.SolrWriter.close(SolrWriter.java:57) at org.apache.solr.handler.dataimport.DocBuilder.execute(DocBuilder.java:265) at org.apache.solr.handler.dataimport.DataImporter.doFullImport(DataImporter.java:372) at org.apache.solr.handler.dataimport.DataImporter.runCmd(DataImporter.java:440) at org.apache.solr.handler.dataimport.DataImporter$1.run(DataImporter.java:421)