{
  "responseHeader":{
    "zkConnected":true,
    "status":400,
    "QTime":3},
  "error":{
    "metadata":[
      "error-class","org.apache.solr.common.SolrException",
      "root-error-class","org.apache.solr.parser.ParseException"],
    "msg":"org.apache.solr.search.SyntaxError: Cannot parse 'range_f:[2': Encountered "<EOF>" at line 1, column 18.rnWas expecting one of:rn    "TO" ...rn    <RANGE_QUOTED> ...rn    <RANGE_GOOP> ...rn    ",
    "code":400}}