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Re: Restrict Lucene search in concrete document ids - Lucene - [mail # user]
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...Exactly what method in which class of which version of lucene are you trying to override? There is no "Bits" method. There is no "indexReader.Documents" method. I said this...
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Author: Ian Lea,
2012-10-22, 13:12
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Re: Removing Indexed field data. - Lucene - [mail # user]
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...As Aditya said, you'll need to recreate that document. http://wiki.apache.org/lucene-java/LuceneFAQ#How_do_I_update_a_document_or_a_set_of_documents_that_are_already_indexed.3F ...
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Author: Ian Lea,
2012-10-22, 13:07
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Re: Restrict Lucene search in concrete document ids - Lucene - [mail # user]
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...I would expect a filter to be quicker than adding thousands of clauses because Filters are just bit sets and operations are extremely fast. But never take performance predictions, particular...
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Author: Ian Lea,
2012-10-17, 15:03
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Re: Lucene updateDocument deletes the document, but the counts keep increasing - Lucene - [mail # user]
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...I guess so. I don't pay much attention to these figures but presumably IndexReader.numDocs() and numDeletedDocs() will adjust as deletions get merged away. Try it and see. ...
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Author: Ian Lea,
2012-10-17, 13:40
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Re: Lucene updateDocument deletes the document, but the counts keep increasing - Lucene - [mail # user]
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...Yes, IndexWriter.updateDocument() deletes and then adds. See the javadocs. So your index will have deleted docs. Why do you care? They'll go away eventually as segments get merge...
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Author: Ian Lea,
2012-10-17, 13:03
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Re: Lucene index on NFS - Lucene - [mail # user]
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...I agree that reliability/corruption is not an issue. I would also put it that performance is likely to suffer, but that's not certain. A fast disk mounted over NFS can be quicker...
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Author: Ian Lea,
2012-10-02, 12:56
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Re: Lucene index on NFS - Lucene - [mail # user]
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...You'll certainly need to factor in the performance of NFS versus local disks. My experience is that smallish low activity indexes work just fine on NFS, but large high activity indexes...
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Author: Ian Lea,
2012-10-02, 09:10
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Re: Index size doubles every time when I synchronize the RAM-based index with the FD-based index - Lucene - [mail # user]
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...Are you loading it from disk, adding loads of docs then writing it back to disk? That would do it. How many docs in the memory index? How many on disk? What version o...
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Author: Ian Lea,
2012-09-30, 20:02
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Re: multireader.deleteDocuments transfer to IndexWriter.deleteDocuments ? - Lucene - [mail # user]
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...So you've got a MultiReader over some number of indexes, and in order to delete stuff matched with that MultiReader you need an IndexWriter for the specific index that holds the selected ter...
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Author: Ian Lea,
2012-09-25, 11:05
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Re: Why does giving more JVM memory to lucene make queries run it faster? - Lucene - [mail # user]
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...Most programs in all languages like plenty of memory. If you Google "lucene memory usage" you'll get hits on articles by Lucene developers and plenty more. Some bits may be more ...
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Author: Ian Lea,
2012-09-21, 09:15
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