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https://issues.apache.org/jira/browse/LUCENE-648?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Grant Ingersoll closed LUCENE-648.
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> Allow changing of ZIP compression level for compressed fields
> -------------------------------------------------------------
>
>                 Key: LUCENE-648
>                 URL: https://issues.apache.org/jira/browse/LUCENE-648
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Index
>    Affects Versions: 1.9, 2.0.0, 2.0.1, 2.1
>            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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