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From Ben Hood <0x6e6...@gmail.com>
Subject Re: IndexNotFoundException
Date Mon, 06 Jun 2011 15:58:19 GMT
Ian,

Thanks a lot for the heads up. I didn't even know those detailed
release notes existed - I just looked on the main release page and
searched a bit through JIRA.

Cheers,

Ben

On Mon, Jun 6, 2011 at 2:57 PM, Ian Lea <ian.lea@gmail.com> wrote:
> In the release notes for 3.1.0 under Changes in backwards
> compatibility policy it says
>
> LUCENE-2386: IndexWriter no longer performs an empty commit upon new
> index creation. Previously, if you passed an empty Directory and set
> OpenMode to CREATE*, IndexWriter would make a first empty commit. If
> you need that behavior you can call writer.commit()/close()
> immediately after you create it.
>
> https://issues.apache.org/jira/browse/LUCENE-2386
>
> --
> Ian.
>
>
> On Mon, Jun 6, 2011 at 10:58 AM, Ben Hood <0x6e6562@gmail.com> wrote:
>> Hi,
>>
>> I'm trying to upgrade from 3.0.2 to 3.2.0 and am running into the
>> following issue when trying to boot an IndexSearcher:
>>
>> Exception in thread "main"
>> org.apache.lucene.index.IndexNotFoundException: no segments* file
>> found in org.apache.lucene.store.NIOFSDirectory@/tmp/804f7160-9023-11e0-9123-0022192d0d03
>> lockFactory=org.apache.lucene.store.NativeFSLockFactory@7a6d084b:
>> files: [write.lock]
>>        at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:711)
>>        at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:75)
>>        at org.apache.lucene.index.IndexReader.open(IndexReader.java:428)
>>        at org.apache.lucene.index.IndexReader.open(IndexReader.java:288)
>>        at org.apache.lucene.search.IndexSearcher.<init>(IndexSearcher.java:107)
>>        at net.lshift.diffa.kernel.util.IndexWriterTest.main(IndexWriterTest.java:21)
>>
>> I've created a stripped down test case that reproduces the issue (see below).
>>
>> Is there something I'm doing wrong here? I would have assumed that
>> after the IndexWriter constructor has returned, then the necessary
>> index segments would in the directory on disk, or is this operation
>> asynchronous?
>>
>> Thanks for any help,
>>
>> Cheers,
>>
>> Ben
>>
>> ------
>>
>> package net.lshift.diffa.kernel.util;
>>
>> import com.eaio.uuid.UUID;
>> import org.apache.lucene.analysis.standard.StandardAnalyzer;
>> import org.apache.lucene.index.IndexWriter;
>> import org.apache.lucene.index.IndexWriterConfig;
>> import org.apache.lucene.search.IndexSearcher;
>> import org.apache.lucene.store.FSDirectory;
>> import org.apache.lucene.util.Version;
>>
>> import java.io.File;
>>
>> public class IndexWriterTest {
>>
>>  public static void main(String[] args) throws Exception {
>>    FSDirectory dir = FSDirectory.open(new File("/tmp/" + new
>> UUID().toString()));
>>    IndexWriterConfig config = new
>> IndexWriterConfig(Version.LUCENE_32, new
>> StandardAnalyzer(Version.LUCENE_32));
>>    config.setOpenMode(IndexWriterConfig.OpenMode.CREATE);
>>    IndexWriter writer = new IndexWriter(dir, config);
>>    IndexSearcher searcher = new IndexSearcher(dir, true);
>>  }
>>
>> }
>>
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>>
>
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