In GSearch Solr, the HTTP error 404 undefined field text is issued. This is also related to a error in the startup logs. Queries without a specified field (using the default) will fail.

http://stackoverflow.com/questions/10130163/solr-query-http-error-404-undefined-field-text
http://stackoverflow.com/questions/15241980/solr4-currently-only-looks-at-the-default-df-field-how-can-we-search-multiple