curl http://127.0.0.1:8080/solr/cbalerts/update?commit=true -H "Content-Type: text/xml" -d "<delete><query>field:value</query></delete>"
curl http://127.0.0.1:8080/solr/cbalerts/update?commit=true -H "Content-Type: text/xml" -d "<delete><query>feed_name:feedname</query></delete>"
curl http://127.0.0.1:8080/solr/cbalerts/update?commit=true -H "Content-Type: text/xml" -d "<delete><query>watchlist_name:watchlist</query></delete>"
curl http://127.0.0.1:8080/solr/cbalerts/update?commit=true -H "Content-Type: text/xml" -d "<delete><query>status:state</query></delete>"