Database Operation
http://master_server is the master service, $db_name is the name of the created database.
List Database
curl -XGET http://master_server/list/db
Create Database
curl -XPUT -H "content-type:application/json" -d '{
"name": "db_name"
}' http://master_server/db/_create
View Database
curl -XGET http://master_server/db/$db_name
Delete Database
curl -XDELETE http://master_server/db/$db_name
Cannot delete if there is a table space under the datebase.
View Database Space
curl -XGET http://master_server/list/space?db=$db_name