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https://issues.apache.org/jira/browse/LUCENE-1483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Miller updated LUCENE-1483:
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    Description: FieldCache and Filters are forced down to a single segment 
reader, allowing for individual segment reloading on reopen.  (was: Here is a 
quick test patch. FieldCache for sorting is done at the individual IndexReader 
level and reloading the fieldcache on reopen can be much faster as only changed 
segments need to be reloaded.)
        Summary: Change IndexSearcher to use MultiSearcher semantics for 
multiple subreaders  (was: Change IndexSearcher to use MultiSearcher semantics 
for sorted searches)

> Change IndexSearcher to use MultiSearcher semantics for multiple subreaders
> ---------------------------------------------------------------------------
>
>                 Key: LUCENE-1483
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1483
>             Project: Lucene - Java
>          Issue Type: Improvement
>    Affects Versions: 2.9
>            Reporter: Mark Miller
>            Priority: Minor
>         Attachments: LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, 
> LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, LUCENE-1483.patch, 
> LUCENE-1483.patch
>
>
> FieldCache and Filters are forced down to a single segment reader, allowing 
> for individual segment reloading on reopen.

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