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From Apache Wiki <>
Subject [Solr Wiki] Update of "DataImportHandlerFaq" by EricPugh
Date Thu, 17 Feb 2011 19:43:25 GMT
Dear Wiki user,

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The "DataImportHandlerFaq" page has been changed by EricPugh.


  There's a connection property called responseBuffering in the sqljdbc driver whose default
value is "full" which causes the entire result set to be fetched. See
for more details. You can set this property to "adaptive" to keep the driver from getting
everything into memory. Connection properties like this can be set as an attribute (responseBuffering="adaptive")
in the dataSource configuration OR directly in the jdbc url specified in DataImportHandler's
dataSource configuration.
  === Is it possible to use core properties inside data-config xml? ===
+ If you define the property inside of your <core/> in solr.xml then you can refer to
the property in your data-config.xml file directly.  However if you define it in the <solr/>
level, so that it applies to multiple cores, then you need to use the technique below:
   * Add your property in the invariant section of solrconfig's DataImportHandler element.
For example, add this section:
   * <lst name="invariants"> <str name="xmlDataDir">${xmlDataDir}</str>

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