Hi, I see that DataNucleus is supported, and that Cassandra is one of the databases under that. Cassandra runs on the concept of "eventual consistency", where some errors/exceptions occur, that differ from a relational DB, see:
http://www.datastax.com/dev/blog/cassandra-error-handling-done-right Will Apache Isis retry, fast fail, etc on the errors relating to"eventual consistency", described in the link above ?. Thanks Andrew
