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https://issues.apache.org/jira/browse/LUCENENET-27?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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George Aroush reassigned LUCENENET-27:
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Assignee: George Aroush
> Problem with multiple indices and multisearcher
> -----------------------------------------------
>
> Key: LUCENENET-27
> URL: https://issues.apache.org/jira/browse/LUCENENET-27
> Project: Lucene.Net
> Issue Type: Bug
> Environment: Windows XP, Visual Studio Pro 2005, Lucene .net 1.9
> Final RC build 007
> Reporter: Vivek Gupta
> Assigned To: George Aroush
>
> Hi,
> I am working on a project where we have created an application that searches
> an index that is created by a service. The service continually watches a
> directory and updates the index. This part works fine. I have now added a
> second index created by another application. I would like to be able to
> search across both indexes. So I made changes to my first application so
> that it uses multisearcher passing in an array of searchers for both of the
> indexes I want to search. However, this seems to result in an error (shown
> further down). Also, both indexes have the same fields and either one works
> fine by itself, it is just when multisearcher is introduced that I end up
> with a problem.
> Here is the error I get:
> Object reference not set to an instance of an object.
> at Lucene.Net.Store.FSIndexInput.ReadInternal(Byte[] b, Int32 offset,
> Int32 len) in C:\development\Lucene.Net.1.9.rc7\Store\FSDirectory.cs:line 740
> at Lucene.Net.Store.BufferedIndexInput.ReadBytes(Byte[] b, Int32 offset,
> Int32 len) in
> C:\development\Lucene.Net.1.9.rc7\Store\BufferedIndexInput.cs:line 53
> at Lucene.Net.Index.CompoundFileReader.CSIndexInput.ReadInternal(Byte[] b,
> Int32 offset, Int32 len) in
> C:\development\Lucene.Net.1.9.rc7\Index\CompoundFileReader.cs:line 246
> at Lucene.Net.Store.BufferedIndexInput.Refill() in
> C:\development\Lucene.Net.1.9.rc7\Store\BufferedIndexInput.cs:line 74
> at Lucene.Net.Store.BufferedIndexInput.ReadByte() in
> C:\development\Lucene.Net.1.9.rc7\Store\BufferedIndexInput.cs:line 36
> at Lucene.Net.Store.IndexInput.ReadVInt() in
> C:\development\Lucene.Net.1.9.rc7\Store\IndexInput.cA first chance exception
> of type 'System.NullReferenceException' occurred in Lucene.Net.dll
> s:line 63
> at Lucene.Net.Index.TermBuffer.Read(IndexInput input, FieldInfos
> fieldInfos) in C:\development\Lucene.Net.1.9.rc7\Index\TermBuffer.cs:line 70
> at Lucene.Net.Index.SegmentTermEnum.Next() in
> C:\development\Lucene.Net.1.9.rc7\Index\SegmentTermEnum.cs:line 130
> at Lucene.Net.Index.SegmentTermEnum.ScanTo(Term term) in
> C:\development\Lucene.Net.1.9.rc7\Index\SegmentTermEnum.cs:line 166
> at Lucene.Net.Index.TermInfosReader.ScanEnum(Term term) in
> C:\development\Lucene.Net.1.9.rc7\Index\TermInfosReader.cs:line 175
> at Lucene.Net.Index.TermInfosReader.Get(Term term) in
> C:\development\Lucene.Net.1.9.rc7\Index\TermInfosReader.cs:line 168
> at Lucene.Net.Index.TermInfosReader.Terms(Term term) in
> C:\development\Lucene.Net.1.9.rc7\Index\TermInfosReader.cs:line 236
> at Lucene.Net.Index.SegmentReader.Terms(Term t) in
> C:\development\Lucene.Net.1.9.rc7\Index\SegmentReader.cs:line 317
> at Lucene.Net.Search.PrefixQuery.Rewrite(IndexReader reader) in
> C:\development\Lucene.Net.1.9.rc7\Search\PrefixQuery.cs:line 49
> at Lucene.Net.Search.BooleanQuery.Rewrite(IndexReader reader) in
> C:\development\Lucene.Net.1.9.rc7\Search\BooleanQuery.cs:line 514
> at Lucene.Net.Search.IndexSearcher.Rewrite(Query original) in
> C:\development\Lucene.Net.1.9.rc7\Search\IndexSearcher.cs:line 276
> at Lucene.Net.Search.MultiSearcher.Rewrite(Query original) in
> C:\development\Lucene.Net.1.9.rc7\Search\MultiSearcher.cs:line 333
> at Lucene.Net.Search.Query.Weight(Searcher searcher) in
> C:\development\Lucene.Net.1.9.rc7\Search\Query.cs:line 98
> at Lucene.Net.Search.Hits..ctor(Searcher s, Query q, Filter f) in
> C:\development\Lucene.Net.1.9.rc7\Search\Hits.cs:line 41
> at Lucene.Net.Search.Searcher.Search(Query query, Filter filter) in
> C:\development\Lucene.Net.1.9.rc7\Search\Searcher.cs:line 54
> at Lucene.Net.Search.Searcher.Search(Query query) in
> C:\development\Lucene.Net.1.9.rc7\Search\Searcher.cs:line 45
> Thanks,
> Vivek Gupta
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