Hi all, I've been testing 2.3.2 this week and found a memory leak with
multiple clause Boolean queries.
The clauses must be added as occur::MUST or occur::MUST_NOT for the leak
to show.
Could someone verify this for me?
I'm running under Windows, Visual Studio 2008 using DLL build.
Here's some sample code to reproduce it:
void DoTest(CuTest *tc)
{
StandardAnalyzer a((const TCHAR**)_T("\0"));
RAMDirectory ram;
IndexWriter writer(&ram, &a, true);
Document doc;
doc.add(*(_CLNEW Field(_T("first"), _T("Blah blah blah aaa")
, Field::STORE_YES | Field::INDEX_TOKENIZED)));
writer.addDocument(&doc);
writer.close();
IndexSearcher searcher(&ram);
BooleanQuery *q = _CLNEW BooleanQuery();
Term *t = _CLNEW Term(_T("first"), _T("aaa"));
q->add(_CLNEW TermQuery(t ), true, BooleanClause::MUST);
_CLDECDELETE(t);
// adding second clause causes leak
// less leaks with BooleanClause::MUST_NOT
// no leaks with BooleanClause::SHOULD
t = _CLNEW Term(_T("first"), _T("blah"));
q->add(_CLNEW TermQuery(t), true, BooleanClause::MUST);
_CLDECDELETE(t);
// of course I can also reproduce simply using the query parser
// Query* q = QueryParser::parse(_T("+blah +aaa "), _T("first"),
&a);
Hits* h = searcher.search(q);
_CLLDELETE(h);
_CLLDELETE(q);
}
Here is the MS mem leak dump:
Dumping objects ->
{1454} normal block at 0x03ACAB00, 1024 bytes long.
Data: < > 00 03 00 00 00 00 00 00 00 00 00 00 00 00 00
00
{1453} normal block at 0x03ACDE58, 8 bytes long.
Data: < > B8 CA AC 03 20 D3 AC 03
.\CLucene\search\ConjunctionScorer.cpp(32) : {1452} normal block at
0x03ACDE08, 16 bytes long.
Data: < {...@j X > BC 7B 40 6A CD CD CD CD 58 DE AC 03 02 00 00
00
.\CLucene\search\TermQuery.cpp(154) : {1443} normal block at 0x03ACD320,
560 bytes long.
Data: < @j (U > E8 86 40 6A 10 FF CD 00 04 D2 AC 03 28 55 AB
03
.\CLucene\index\SegmentReader.cpp(540) : {1440} normal block at
0x03ACD1A8, 100 bytes long.
Data: < >j >j > 94 8B 3E 6A CD CD CD CD A4 8B 3E 6A CD CD CD
CD
.\CLucene\search\TermQuery.cpp(154) : {1436} normal block at 0x03ACCAB8,
560 bytes long.
Data: < @j (U > E8 86 40 6A 10 FF CD 00 9C C9 AC 03 28 55 AB
03
.\CLucene\config\threads.cpp(43) : {1434} normal block at 0x03ACCA60, 24
bytes long.
Data: <h6 > 68 36 BC 00 FF FF FF FF 00 00 00 00 00 00 00
00
.\CLucene\index\CompoundFile.cpp(118) : {1433} normal block at
0x03ACC9E0, 64 bytes long.
Data: <( ?j ?j` > 28 20 3F 6A CD CD CD CD 14 20 3F 6A 60 CA AC
03
.\CLucene\index\SegmentReader.cpp(540) : {1432} normal block at
0x03ACC940, 100 bytes long.
Data: < >j >j > 94 8B 3E 6A CD CD CD CD A4 8B 3E 6A CD CD CD
CD
Object dump complete.
Thanks for your time - it's extremely appreciated!
Bill
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