Why to change the h2 database
Event though H2 is a great database system I would still recommend a postgres or oracle system for production stack: I have much more (nice) experience with them. Note that bonita engine is aimed to performs lots of parallel transaction, hence you would need a DBMS that manage well transaction. Not sure how H2 will behave with large DB and lots of transcations.
Thanks you guys for your responses !
Now I've understood.