I faced with a weird problem using apache solr faceting search. While selecting two facet constraints, solr respond with 400 error:

"400" Status: null: null HTTP ERROR 400

Problem accessing /solr/project/select. Reason:


Basically I have one index configured and number of fields indexed inside. I'm using facet for "content type" field. There is no problem at all when only one facet constraint is selected.

http://localhost:8983/solr/project/select?fl=item_id,score&fq={!tag=facet:type}ss_type:"system"&start=0&rows=10&sort=ds_created desc&facet=true&facet.sort=count&facet.limit=10&facet.mincount=1&facet.missing=false&facet.field={!ex=facet:type}ss_type&f.ss_type.facet.limit=50&wt=json&json.nl=map&q.alt=(ss_search_api_language:"sv") (index_id:"project_nodes_index") (hash:gf1tmd)

Problem starts where two constraints are selected:

http://localhost:8983/solr/project/select?fl=item_id,score&start=0&rows=10&sort=ds_created desc&facet=true&facet.sort=count&facet.limit=10&facet.mincount=1&facet.missing=false&facet.field={!ex=facet:type}ss_type&f.ss_type.facet.limit=50&wt=json&json.nl=map&q.alt=(ss_search_api_language:"sv") ((({!tag=facet:type}ss_type:"system") OR ({!tag=facet:type}ss_type:"product"))) (index_id:"project_nodes_index") (hash:gf1tmd)

Standart modules are used: * search_api_solr * search_api * facetapi

Solr version 3.6.2

  • having exactly the same issue here :) Commented Mar 25, 2015 at 11:32

1 Answer 1


I think you can update to the latest dev version.

For more info you could check this issue:


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.