Need help configuring Memcached to store values in MySQL Cluster
The basic docs for using the Memcached API for MySQL Cluster 7.2 start at http://dev.mysql.com/doc/refman/5.5/en/mysql-cluster-ndbmemcache.html

On the memcached command line, you need to supply an option like "-E ndb_engine.so".  Memcached has a "pluggable engine" architecture, and the MySQL Cluster component is implemented as an NDB Engine.  When memcached starts up with the correct engine you should see a log message like this:


01-Mar-2012 11:27:27 PST NDB Memcache 5.5.20-ndb-7.2.5 started [NDB 7.2.5; MySQL 5.5.20]
Contacting primary management server