I think it's very interesting use case (if I understand you correctly) to
store data locally and, if client can, connect to the cluster and share
data. But for now this use case doesn't support directly and, probably, you
should put some local write behind cache before apache ignite client node
and work with this cache from you app. Cache should:
1) Have some evict policy for prevent overflowing of local JVM memory
2) Trying to write cached data in background to put all data into your
cluster when it available
