http {
...
upstream dbgroup {
 # 连接句柄
 drizzle_server host1:3306 dbname=test password=pass user=alice protocol=mysql;
 #连接池
 drizzle_keepalive max=200 overflow=reject;
}
...
server{
location ~ ‘^/cat/(.*)‘ {
       set $name $1;
       set_quote_sql_str $quoted_name $name;
       drizzle_query "select *
           from cats
           where name=$quoted_name";
       drizzle_pass my_mysql_backend;
       rds_json on;
   }
}
}