[SOLR-4860] MoreLikeThisHandler doesn't work with numeric or date fields in 4.x

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.2
• Fix Version/s: 4.6
• Component/s: MoreLikeThis
• Assignee: Unassigned
• Reporter: Thomas Seidl
• Created: 26/May/13 15:53
• Updated: 06/Aug/15 15:22
• Resolved: 06/Aug/15 15:22

Description

After upgrading to Solr 4.2 (from 3.x), I realized that my MLT queries no longer work. It happens if I pass an integer (solr.TrieIntField), float (solr.TrieFloatField) or date (solr.DateField) field as part of the mlt.fl parameter. The field's multiValued setting doesn't seem to matter.

This is the error I get:

NumericTokenStream does not support CharTermAttribute.

java.lang.IllegalArgumentException: NumericTokenStream does not support CharTermAttribute.
	at org.apache.lucene.analysis.NumericTokenStream$NumericAttributeFactory.createAttributeInstance(NumericTokenStream.java:136)
	at org.apache.lucene.util.AttributeSource.addAttribute(AttributeSource.java:271)
	at org.apache.lucene.queries.mlt.MoreLikeThis.addTermFrequencies(MoreLikeThis.java:781)
	at org.apache.lucene.queries.mlt.MoreLikeThis.retrieveTerms(MoreLikeThis.java:724)
	at org.apache.lucene.queries.mlt.MoreLikeThis.like(MoreLikeThis.java:578)
	at org.apache.solr.handler.MoreLikeThisHandler$MoreLikeThisHelper.getMoreLikeThis(MoreLikeThisHandler.java:348)
	at org.apache.solr.handler.MoreLikeThisHandler.handleRequestBody(MoreLikeThisHandler.java:167)
	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
	at org.apache.solr.core.SolrCore.execute(SolrCore.java:1817)
	at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:639)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:345)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:141)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:560)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:382)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1006)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
	at org.eclipse.jetty.server.Server.handle(Server.java:365)
	at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:485)
	at org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:53)
	at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
	at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:635)
	at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
	at org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)
	at org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:264)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
	at java.lang.Thread.run(Thread.java:679)

The configuration I use can be found here: http://drupalcode.org/project/search_api_solr.git/tree/HEAD:/solr-conf/4.x

If I just misconfigured something, then sorry and please tell me what I'd need to change. Any help would be appreciated!

Issue Links

• relates to: SOLR-7351 MoreLikeThis component doesn't work with dates