Try starting Solr with the “-v” option. That will echo all the jars that are loaded and the paths.
Where _exactly_ is the jar file? You say “in the lib folder of my core”, but that leaves a lot of room for interpretation. Are you running stand-alone or SolrCloud? Exactly how do you start Solr? Details matter Best, Erick > On Oct 9, 2019, at 3:07 AM, guptavaibhav35 <guptavaibha...@gmail.com> wrote: > > Hi, > Kindly help me solve the issue when I am connecting NEO4j with solr. I am > facing this issue in my log file while I have the jar file of neo4j driver > in the lib folder of my core. > > Full Import failed:java.lang.RuntimeException: java.lang.RuntimeException: > org.apache.solr.handler.dataimport.DataImportHandlerException: Could not > load driver: org.neo4j.jdbc.Driver Processing Document # 1 > at > org.apache.solr.handler.dataimport.DocBuilder.execute(DocBuilder.java:271) > at > org.apache.solr.handler.dataimport.DataImporter.doFullImport(DataImporter.java:424) > at > org.apache.solr.handler.dataimport.DataImporter.runCmd(DataImporter.java:483) > at > org.apache.solr.handler.dataimport.DataImporter.lambda$runAsync$0(DataImporter.java:466) > at java.base/java.lang.Thread.run(Thread.java:835) > Caused by: java.lang.RuntimeException: > org.apache.solr.handler.dataimport.DataImportHandlerException: Could not > load driver: org.neo4j.jdbc.Driver Processing Document # 1 > at > org.apache.solr.handler.dataimport.DocBuilder.buildDocument(DocBuilder.java:417) > at > org.apache.solr.handler.dataimport.DocBuilder.doFullDump(DocBuilder.java:330) > at > org.apache.solr.handler.dataimport.DocBuilder.execute(DocBuilder.java:233) > ... 4 more > Caused by: org.apache.solr.handler.dataimport.DataImportHandlerException: > Could not load driver: org.neo4j.jdbc.Driver Processing Document # 1 > at > org.apache.solr.handler.dataimport.DataImportHandlerException.wrapAndThrow(DataImportHandlerException.java:69) > at > org.apache.solr.handler.dataimport.JdbcDataSource.createConnectionFactory(JdbcDataSource.java:159) > at > org.apache.solr.handler.dataimport.JdbcDataSource.init(JdbcDataSource.java:80) > at > org.apache.solr.handler.dataimport.DataImporter.getDataSourceInstance(DataImporter.java:397) > at > org.apache.solr.handler.dataimport.ContextImpl.getDataSource(ContextImpl.java:100) > at > org.apache.solr.handler.dataimport.SqlEntityProcessor.init(SqlEntityProcessor.java:53) > at > org.apache.solr.handler.dataimport.EntityProcessorWrapper.init(EntityProcessorWrapper.java:77) > at > org.apache.solr.handler.dataimport.DocBuilder.buildDocument(DocBuilder.java:434) > at > org.apache.solr.handler.dataimport.DocBuilder.buildDocument(DocBuilder.java:415) > ... 6 more > Caused by: java.lang.ClassNotFoundException: Unable to load > org.neo4j.jdbc.Driver or > org.apache.solr.handler.dataimport.org.neo4j.jdbc.Driver > at > org.apache.solr.handler.dataimport.DocBuilder.loadClass(DocBuilder.java:935) > at > org.apache.solr.handler.dataimport.JdbcDataSource.createConnectionFactory(JdbcDataSource.java:157) > ... 13 more > Caused by: org.apache.solr.common.SolrException: Error loading class > 'org.neo4j.jdbc.Driver' > at > org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:557) > at > org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:488) > at > org.apache.solr.handler.dataimport.DocBuilder.loadClass(DocBuilder.java:926) > ... 14 more > Caused by: java.lang.ClassNotFoundException: org.neo4j.jdbc.Driver > at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:436) > at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:588) > at > java.base/java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:864) > at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) > at java.base/java.lang.Class.forName0(Native Method) > at java.base/java.lang.Class.forName(Class.java:415) > at > org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:541) > ... 16 more > > > > -- > Sent from: https://lucene.472066.n3.nabble.com/Solr-User-f472068.html
