: just a very basic question, but I haven't been able to find the answer in : the Solr wiki: how many updateHandlers can one Solr config have? Just one? : Or many?
There can only be one <updateHandler /> declaration in solrconfig.xml, it's responsible for "owning" updates to the index. But there can be any number of <requestHandler /> declarations to configure request handlers that do updates, as well as any number of <updateRequestProcessorChain /> declarations that can identify the processors used for dealing with updates (which cna be refered to by name from the request handlers) -Hoss
