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https://issues.apache.org/jira/browse/LUCENE-1193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Otis Gospodnetic reopened LUCENE-1193:
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> OOM exception while sorting on more than 1 field
> ------------------------------------------------
>
> Key: LUCENE-1193
> URL: https://issues.apache.org/jira/browse/LUCENE-1193
> Project: Lucene - Java
> Issue Type: Bug
> Components: Search
> Affects Versions: 2.3
> Environment: LINUX, JRUN4, APACHE, 3GB RAM
> Reporter: vaidy
>
> Lucene Index contains 2.1 Million records (indexed from 2.1 million records
> from sqlserver DB).
> Lucene Index file Size 256MB
> Lucene version: 2.3
> Searching works fine when we sort the results on a single field. However, if
> the search results is sorted on more than one field we get Out of Memory
> exception.
> We restrict the number of search results to 250
> Out of Memory exception is quite consistent in 2.3. We recently moved from
> 2.0 to 2.3.
> Version 2.0 also used to give the OOM but not this frequent.
> {color:red}
> *Code Snippet:*
> final QueryParser parser;
> StandardAnalyzer analyzer = new StandardAnalyzer();
> String sSearchQuery = "MUSIC";
> Sort oSort = null;
> public static final String G2KEYFIELDS = "G2KEYFIELDS";
> oSort = new Sort(new SortField[]{
> new SortField
> (GroupsConstants.LAST_MODIFIED,SortField.INT,true),
> new SortField(GroupsConstants.GROUPNAME)
> });
>
> parser = new QueryParser(G2KEYFIELDS, analyzer);
> final Vector ids = new Vector();
> FSDirectory dir = null;
> IndexSearcher searcher = null;
> try {
> dir = FSDirectory.getDirectory(index);
> searcher = new IndexSearcher(dir);
> Query query = parser.parse(sSearchQuery);
> Hits hits = searcher.search(query, oSort);
> for (int i = 0; i != hits.length() && i != 250; ++i) {
> final Document doc = hits.doc(i);
> Integer oiGroupId=new Integer(doc.getField
> (GroupsConstants.IDENTITY).stringValue());
> if(!ids.contains(oiGroupId)){
> ids.addElement(oiGroupId);
> }
> }
> searcher.close();
> dir.close();
> {color}
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