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Then you will need to tell the core which UpdateProcessorFactory to use, along with the parameter “source.field” that the processor will use and when to use this update processor. Here again, things are simplified in Datafari as you will only need to declare the update processor in the DATAFARI_HOME/solr/solrcloud/FileShare/conf/customs_solrconfig/custom_update_processors.incl file as follow:
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