Hello, If the collection has only one shard/replica or in case when _route_ param points to the hosted core, [shard] field in response is set to "[not a shard request]".
When short-circuiting in below code "shard.url" is not populated in request param. Please let me know if I submit a JIRA. https://github.com/apache/lucene-solr/blob/301ea0e4624c2bd693fc034a801c4abb91cba299/solr/core/src/java/org/apache/solr/handler/component/HttpShardHandler.java#L405 http://localhost:8983/solr/collection1/selct?q=*:*&fl=[shard] Thanks Gopi
