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I have a solr 7.3 installation on debian, and want to cluster results with carrot2 workbench 3.16.0. I used carrot2 manual chapter 4.2.5 "clustering documents from a solr index" and: - set "solr" as a source - used default values in section medium - set service url to: http://localhost:8983/solr/corename/select?wt=xml

I get results, but only a pure empty list without clustering

In the clusters section (left side of the middle window of carrot2 workbench) I get: Other Topics(nn), nothing else; In the document section (right side of the middle window of carrot2 workbench) I get: a empty list [0] until [nn];

whats goring wrong?

( service url: http://localhost:8983/solr/corename/select resulted in: "com.sun.org.apache.xml.internal.utils.WrappedRuntimeException: Content is not allowed in prolog" because the result was in json)

user3498394
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  • Do your document contain stored fields? Carrot2 can only operate on stored fields because it requires the original content of the document (Carrot2 performs its own tokenization, stemming etc.). – Stanislaw Osinski Dec 04 '18 at 10:29
  • I'm new to solr - how do I find out this? – user3498394 Dec 04 '18 at 11:53
  • got it - field name had wrong spelling - was not default value, but can be extracted by having a look at http://localhost:8983/solr/corename/select?q=* – user3498394 Dec 04 '18 at 22:06

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