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From "Ryan Zezeski (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-4509) Disable Stale Check - Distributed Search (Performance)
Date Wed, 27 Feb 2013 17:53:14 GMT
Ryan Zezeski created SOLR-4509:
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             Summary: Disable Stale Check - Distributed Search (Performance)
                 Key: SOLR-4509
                 URL: https://issues.apache.org/jira/browse/SOLR-4509
             Project: Solr
          Issue Type: Improvement
          Components: search
         Environment: 5 node SmartOS cluster (all nodes living in same global zone - i.e.
same physical machine)
            Reporter: Ryan Zezeski
            Priority: Minor


By disabling the Apache HTTP Client stale check I've witnessed a 2-4x increase in throughput
and reduction of over 100ms.  This patch was made in the context of a project I'm leading,
called Yokozuna, which relies on distributed search.

Here's the patch on Yokozuna: https://github.com/rzezeski/yokozuna/pull/26

Here's a write-up I did on my findings: http://www.zinascii.com/2013/solr-distributed-search-and-the-stale-check.html

I'm happy to answer any questions or make changes to the patch to make it acceptable.

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