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Posted to dev@lucene.apache.org by "Amir Hadadi (JIRA)" <ji...@apache.org> on 2018/03/17 16:44:00 UTC

[jira] [Created] (LUCENE-8213) offload caching to a dedicated threadpool

Amir Hadadi created LUCENE-8213:
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             Summary: offload caching to a dedicated threadpool
                 Key: LUCENE-8213
                 URL: https://issues.apache.org/jira/browse/LUCENE-8213
             Project: Lucene - Core
          Issue Type: Improvement
          Components: core/query/scoring
    Affects Versions: 7.2.1
            Reporter: Amir Hadadi


IndexOrDocValuesQuery allows to combine non selective range queries with a selective lead iterator in an optimized way. However, the range query at some point gets cached by a querying thread, which negates the optimization of IndexOrDocValuesQuery for that specific query.

It would be nice to see a caching implementation that offloads to a different thread pool, so that queries involving IndexOrDocValuesQuery would have consistent performance characteristics.



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