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Posted to dev@lucene.apache.org by "Adrien Grand (JIRA)" <ji...@apache.org> on 2013/03/18 00:15:14 UTC

[jira] [Created] (LUCENE-4847) Sorter API: Fully reuse docs enums

Adrien Grand created LUCENE-4847:
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             Summary: Sorter API: Fully reuse docs enums
                 Key: LUCENE-4847
                 URL: https://issues.apache.org/jira/browse/LUCENE-4847
             Project: Lucene - Core
          Issue Type: Improvement
            Reporter: Adrien Grand
            Assignee: Adrien Grand
            Priority: Minor
             Fix For: 4.3


SortingAtomicReader reuses the filtered docs enums but not the wrapper. In the case of SortingAtomicReader this can be a problem because the wrappers are heavyweight (they load the whole postings list into memory), so an index with many terms with high freqs will make the JVM allocate a lot of memory when browsing the postings lists.

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