As a disclaimer, it can be misleading to draw conclusions on space
efficiency based on such a small index.
Can you compare file sizes by extension across 7.7 and 8.7? You might
need to call IndexWriterConfig#setUseCompoundFile(false) to prevent
the flush from wrapping your segment files in a compound file.
On Wed, Nov 17, 2021 at 6:28 AM xiaoshi wrote:
>
> Hi, everyone.
> I found that the index file of lucene8.7 is larger than the 7.7 version:
> My data source: lucene/demo/src/test/org/apache/lucene/demo/test-files/docs
> The index code is as follows:
> InputStream stream = Files.newInputStream(file)
> Document doc = new Document();
> Field pathField = new StringField("path", file.toString(), Field.Store.YES);
> doc.add(pathField);
> doc.add(new LongPoint("modified", lastModified));
> doc.add(new TextField("contents", new BufferedReader(new
> InputStreamReader(stream, StandardCharsets.UTF_8;
>
>
> Index size
> 8.7: 136K
> 7.7: 116K
> I guess it is caused by LUCENE-9027?
> Can anyone tell me why?
--
Adrien
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