Currently Streaming Expressions only work with Solr Cloud. This is because Streaming Expressions were designed to use Solr Cloud features for all distributed capabilites of the language.
Joel Bernstein http://joelsolr.blogspot.com/ On Tue, Aug 14, 2018 at 1:59 AM, David '-1' Schmid <gdk...@gmail.com> wrote: > Hello! > > I'm interested in using the graph traversal streaming expressions. > My solr instance is running in standalone (not SolrCloud) mode, so I'm > missing the "Stream" interface on the admin pages. The request handler > is there (I guess because it's implicit), but no UI. > > Is the streaming something that's only useful with -cloud? I could not > find any information about it. > > I expected the graph requestHandler to work as well, but it defaults > to a NullPointerException. > When I'm using the stream interface with the first example from the > guide, I get: > > org.apache.solr.common.SolrException: > java.lang.IllegalArgumentException: A HostProvider may not be empty! > > Which leads me to believe, that this is only possible with -cloud? > I could not find anything about it, could anybody point out what I'm > missing here? > > regards, > David >