tristanls on "Caused by: java.lang.ClassNotFoundException: org.apache.solr.handler.dataimport.DataImportHandler"

Do I need to do something extra to work with DataImportHandler?

I'm trying to get the DataImportHandler to work. I start dse using:

./bin/dse -v
3.0

./bin/dse cassandra -s

I upload solrconfig.xml, schema.xml, and data-config.xml. The relevant part in solrconfig.xml seems to be:

<requestHandler name="/dataimport"
      class="org.apache.solr.handler.dataimport.DataImportHandler">
    <lst name="defaults">
      <str name="config">data-config.xml</str>
    </lst>
  </requestHandler>

When then trying to start the core via:

curl "http://localhost:8983/solr/admin/cores?action=CREATE&name=test.search"

I receive the following 500 response:

org.apache.solr.common.SolrException: RequestHandler init failure
	at org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:168)
	at org.apache.solr.core.SolrCore.<init>(SolrCore.java:651)
	at org.apache.solr.core.SolrCore.<init>(SolrCore.java:564)
	at org.apache.solr.core.CassandraCoreContainer.create(CassandraCoreContainer.java:306)
	at com.datastax.bdp.cassandra.index.solr.SolrCoreResourceManager.createCore(SolrCoreResourceManager.java:149)
	at com.datastax.bdp.cassandra.index.solr.CassandraCoreAdminHandler.handleCreateAction(CassandraCoreAdminHandler.java:46)
	at org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:142)
	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129)
	at org.apache.solr.servlet.SolrDispatchFilter.handleAdminRequest(SolrDispatchFilter.java:379)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:181)
	at com.datastax.bdp.cassandra.index.solr.CassandraDispatchFilter.doFilter(CassandraDispatchFilter.java:87)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.datastax.bdp.cassandra.audit.SolrHttpAuditLogFilter.doFilter(SolrHttpAuditLogFilter.java:194)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.datastax.bdp.cassandra.index.solr.auth.CassandraAuthorizationFilter.doFilter(CassandraAuthorizationFilter.java:94)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at com.datastax.bdp.cassandra.index.solr.auth.DseAuthenticationFilter.doFilter(DseAuthenticationFilter.java:102)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Thread.java:680)
Caused by: org.apache.solr.common.SolrException: Error loading class 'org.apache.solr.handler.dataimport.DataImportHandler'
	at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:439)
	at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:467)
	at org.apache.solr.core.SolrCore.createRequestHandler(SolrCore.java:538)
	at org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:154)
	... 31 more
Caused by: java.lang.ClassNotFoundException: org.apache.solr.handler.dataimport.DataImportHandler
	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
	at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:627)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:249)
	at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:423)
	... 34 more