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From "Karl Wettin (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-1265) Identify bottleneck associated with not pooling searchers
Date Thu, 17 Apr 2008 16:11:21 GMT
Identify bottleneck associated with not pooling searchers
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                 Key: LUCENE-1265
                 URL: https://issues.apache.org/jira/browse/LUCENE-1265
             Project: Lucene - Java
          Issue Type: Task
          Components: Search
            Reporter: Karl Wettin


There have been multiple reports suggesting synchronization problems due to great search performace
boost while pooling searchers under heavy load.

I think this should be confirmed. Then identified and fixed,  alternatively add such a pool
to the code base. 

http://www.nabble.com/Multiple-searchers-%28Was%3A-CachingWrapperFilter%3A-why-cache-per-IndexReader-%29-td14916124.html#a14997611
http://www.nabble.com/Solid-State-Drives-vs.-RAMDirectory-td16025864.html

http://wiki.apache.org/lucene-java/ImproveSearchingSpeed
Use one instance of  IndexSearcher.
Share a single  IndexSearcher across queries and across threads in your application.

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