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From Rikke Willer <>
Subject Core reloading and searcher query warming in Solr 4.0
Date Thu, 01 Sep 2011 07:51:14 GMT

when reloading a core, it seems that the execution of firstSearcher and newSearcher events
will happen after the new core takes over from the old. This will effectively stall querying
until the caches on the new core are warmed (which can take quite a long time on large installations).
Is this correctly observed, and if so, is there a way to postpone the core swap?


solr-impl-version 4.0-SNAPSHOT 1160273M - hudson - 2011-08-22 14:23:02
lucene-spec-version 4.0-SNAPSHOT
lucene-impl-version 4.0-SNAPSHOT 1160273 - hudson - 2011-08-22 14:18:48

from solrconfig.xml:



  <listener event="firstSearcher" class="solr.QuerySenderListener">
<xi:include href="warming_queries.xml" xmlns:xi=""/>
 <listener event="newSearcher" class="solr.QuerySenderListener" />




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