I suspect when you did the upgrade you kept the same configs. The /export handler is an implicit handler in 6.6 so if you see any reference to /export handler in the solrconfig remove it.
The /export hander does only return json or javabin in Solr 6.6. Joel Bernstein http://joelsolr.blogspot.com/ On Thu, Dec 14, 2017 at 3:18 PM, Zhang, Naigong (NIH/NLM/NCBI) [E] < zha...@ncbi.nlm.nih.gov> wrote: > Hi, > We recently upgraded to solr version 6.6.0, and now the /export > RequestHandler only returns xml (with wt=json or not). Before, with version > 5.4.1, we were getting json. > > The manual clearly says that the default should be json: > https://lucene.apache.org/solr/guide/6_6/exporting-result-sets.html > > Can we get json with solr 6.6.0 /export? > > Thanks for your help! > >
