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https://issues.apache.org/jira/browse/LUCENE-916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12502398
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Ben Dotte commented on LUCENE-916:
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I'm also having this problem. I'm trying to use Compass and originally reported
the problem in their forum:
http://forums.opensymphony.com/thread.jspa?threadID=87305&tstart=0
But I agree this seems more like a problem with Lucene itself. I have written a
junit testcase that only uses Lucene objects that generates the same exception
I was getting in Compass:
public class CompassSortTest extends TestCase
{
public void testLuceneMultiSearcherSort() throws Exception
{
RAMDirectory dir1 = new RAMDirectory();
RAMDirectory dir2 = new RAMDirectory();
Analyzer analyzer = new StandardAnalyzer();
IndexWriter writer1 = new IndexWriter(dir1, analyzer, true);
writer1.optimize();
writer1.close();
IndexWriter writer2 = new IndexWriter(dir2, analyzer, true);
Document doc = new Document();
doc.add(new Field("displayName", "obj1", Store.YES,
Index.TOKENIZED));
doc.add(new Field("id", "1", Store.YES, Index.UN_TOKENIZED));
doc.add(new Field("sortField", "3", Store.NO,
Index.UN_TOKENIZED));
writer2.addDocument(doc);
writer2.optimize();
writer2.close();
IndexSearcher searcher1 = new IndexSearcher(dir1);
IndexSearcher searcher2 = new IndexSearcher(dir2);
MultiSearcher multiSearcher = new MultiSearcher(new
Searchable[] {searcher1, searcher2});
QueryParser parser = new QueryParser("displayName", analyzer);
Query query = parser.parse("o*");
Sort sort = new Sort("sortField");
Hits hits = multiSearcher.search(query, sort);
assertEquals("2", hits.doc(0).get("id"));
assertEquals("3", hits.doc(1).get("id"));
assertEquals("1", hits.doc(2).get("id"));
}
}
The problem occurs when using a MultiSearcher that has at least one
IndexSearcher tied to a Directory with no documents in it. If I have 2
IndexSearchers, each with 1 document the test passes. It is only when one of
the IndexSearchers has no documents that the test fails. The exception I get is
"no terms in field sortField - cannot determine sort type" on
FieldCacheImpl.java line 331.
> It is not possible to sort with sorttype auto on a field that does not exist
> ----------------------------------------------------------------------------
>
> Key: LUCENE-916
> URL: https://issues.apache.org/jira/browse/LUCENE-916
> Project: Lucene - Java
> Issue Type: Bug
> Components: Search
> Affects Versions: 1.9, 2.0.0, 2.0.1, 2.1, 2.2
> Reporter: Daan de Wit
>
> When sorting with type auto on a field that does not exist, a
> RuntimeException is thrown from FieldCacheImpl.java line 346. This is
> especially a problem when using MultiSearcher. This issue is related to:
> http://issues.apache.org/jira/browse/LUCENE-374
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