On a side note, please feel free to vote for bugs to get the attention
of a committer. Opening a duplicate bug just makes it harder to
straighten out things in the long run and fills JIRA with cruft.
I fully intend to start working on popular issues (hence the need for
votes) after my move in a few weeks. Doing some Lucene work will be a
welcome relief from packing boxes and lugging furniture.
-Grant
Chuck Williams (JIRA) wrote:
[ http://issues.apache.org/jira/browse/LUCENE-398?page=comments#action_12416837 ]
Chuck Williams commented on LUCENE-398:
---------------------------------------
Christian,
I'm going to open a new issue on this in order to rename it, post a revised
patch, and hopefully get the attention of a committer.
Chuck
ParallelReader crashes when trying to merge into a new index
------------------------------------------------------------
Key: LUCENE-398
URL: http://issues.apache.org/jira/browse/LUCENE-398
Project: Lucene - Java
Type: Bug
Components: Index
Versions: unspecified
Environment: Operating System: All
Platform: All
Reporter: Sebastian Kirsch
Assignee: Lucene Developers
Attachments: ParallelReader.diff, ParallelReaderTest1.java,
parallelreader.diff, patch-next.diff
ParallelReader causes a NullPointerException in
org.apache.lucene.index.ParallelReader$ParallelTermPositions.seek(ParallelReader.java:318)
when trying to merge into a new index.
See test case and sample output:
$ svn diff
Index: src/test/org/apache/lucene/index/TestParallelReader.java
===================================================================
--- src/test/org/apache/lucene/index/TestParallelReader.java (revision
179785)
+++ src/test/org/apache/lucene/index/TestParallelReader.java (working copy)
@@ -57,6 +57,13 @@
}
+ public void testMerge() throws Exception {
+ Directory dir = new RAMDirectory();
+ IndexWriter w = new IndexWriter(dir, new StandardAnalyzer(), true);
+ w.addIndexes(new IndexReader[] { ((IndexSearcher)
parallel).getIndexReader() });
+ w.close();
+ }
+
private void queryTest(Query query) throws IOException {
Hits parallelHits = parallel.search(query);
Hits singleHits = single.search(query);
$ ant -Dtestcase=TestParallelReader test
Buildfile: build.xml
[...]
test:
[mkdir] Created dir:
/Users/skirsch/text/lectures/da/thirdparty/lucene-trunk/build/test
[junit] Testsuite: org.apache.lucene.index.TestParallelReader
[junit] Tests run: 2, Failures: 0, Errors: 1, Time elapsed: 1.993 sec
[junit] Testcase: testMerge(org.apache.lucene.index.TestParallelReader):
Caused an ERROR
[junit] null
[junit] java.lang.NullPointerException
[junit] at
org.apache.lucene.index.ParallelReader$ParallelTermPositions.seek(ParallelReader.java:318)
[junit] at
org.apache.lucene.index.ParallelReader$ParallelTermDocs.seek(ParallelReader.java:294)
[junit] at
org.apache.lucene.index.SegmentMerger.appendPostings(SegmentMerger.java:325)
[junit] at
org.apache.lucene.index.SegmentMerger.mergeTermInfo(SegmentMerger.java:296)
[junit] at
org.apache.lucene.index.SegmentMerger.mergeTermInfos(SegmentMerger.java:270)
[junit] at
org.apache.lucene.index.SegmentMerger.mergeTerms(SegmentMerger.java:234)
[junit] at
org.apache.lucene.index.SegmentMerger.merge(SegmentMerger.java:96)
[junit] at
org.apache.lucene.index.IndexWriter.addIndexes(IndexWriter.java:596)
[junit] at
org.apache.lucene.index.TestParallelReader.testMerge(TestParallelReader.java:63)
[junit] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[junit] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[junit] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[junit] Test org.apache.lucene.index.TestParallelReader FAILED
BUILD FAILED
/Users/skirsch/text/lectures/da/thirdparty/lucene-trunk/common-build.xml:188:
Tests failed!
Total time: 16 seconds
$
--
Grant Ingersoll
Sr. Software Engineer
Center for Natural Language Processing
Syracuse University
School of Information Studies
335 Hinds Hall
Syracuse, NY 13244
http://www.cnlp.org
Voice: 315-443-5484
Fax: 315-443-6886
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