[ http://issues.apache.org/jira/browse/LUCENE-648?page=all ]
Grant Ingersoll resolved LUCENE-648.
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Resolution: Won't Fix
Won't fix, as I think it is agreed that compression should be handled outside
of Lucene and then stored as a binary value
> Allow changing of ZIP compression level for compressed fields
> -------------------------------------------------------------
>
> Key: LUCENE-648
> URL: http://issues.apache.org/jira/browse/LUCENE-648
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Index
> Affects Versions: 1.9, 2.0.0, 2.1, 2.0.1
> Reporter: Michael McCandless
> Priority: Minor
>
> In response to this thread:
> http://www.gossamer-threads.com/lists/lucene/java-user/38810
> I think we should allow changing the compression level used in the call to
> java.util.zip.Deflator in FieldsWriter.java. Right now it's hardwired to
> "best":
> compressor.setLevel(Deflater.BEST_COMPRESSION);
> Unfortunately, this can apparently cause the zip library to take a very long
> time (10 minutes for 4.5 MB in the above thread) and so people may want to
> change this setting.
> One approach would be to read the default from a Java system property, but,
> it seems recently (pre 2.0 I think) there was an effort to not rely on Java
> System properties (many were removed).
> A second approach would be to add static methods (and static class attr) to
> globally set the compression level?
> A third method would be in document.Field class, eg a
> setCompressLevel/getCompressLevel? But then every time a document is created
> with this field you'd have to call setCompressLevel since Lucene doesn't have
> a global Field schema (like Solr).
> Any other ideas / prefererences for either of these methods?
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