Hello, in case if somebody was interested, here's an idea for implementing data migration for ODE-1.X. Data migration is an old idea (last year's GSoC), but this is new approach and looks very simple to implement. It can solve data migration problem between different JVM versions and DB configurations (like dao-hibernate and dao-jpa).
One could extend process management api to add methods: stop (stops scheduler), start (scheduler), dump (async, saves instance states to files in folder on server), dumpAbort, restore (async, restore state from provided files on server), restoreAbort. Implementation will make use of instance replayer (which already has required functionality). So dump would be implemented as calling getCommunication PMAPI function in loop to obtain instances' data. And restore would invoke replay and feed it from files containing getCommunication output. Regards, -- Rafał Rusin http://rrusin.blogspot.com http://www.touk.pl http://top.touk.pl
