Writing a complete plugin requires quite a bit of infrastructure work to get all the feature registration and build system aspects right. A code generator can take care of such tasks, allowing you to focus on the actual functionality you want to add without having to figure out all plugin API details up front. This can cut the time to create a simple plugin down from hours to minutes.
Drizzle has a rich plugin system, which means that Drizzle has a rather large set of available plugins which do things. Some of those plugins implement functionality that people have been asking for in the MySQL ecosystem for quite some time - such as LDAP or PAM based authentication, extremely flexible logging and direct use of Memcached. Come see how to actually do these things and more.
Most of high scale web applications use memcached + MySQL or NoSQL. It is said that NoSQL performs better than MySQL for simple access patterns such as primary key lookups. But things are changing. DeNA recently developed HandlerSocket plugin, a MySQL plugin speaking NoSQL protocols. We got 750,000+ qps in our benchmarks and runs pretty well on our production. We'd like to share our experiences.