Roger, To be able to change the schema in runtime, you need to make sure there are no model classes deployed on server nodes and therefore no deserialization happens. Since you run in embedded mode and have only server nodes, then you actually can't use POJOs in your data modes at all. You should use BinaryObject API [1] or SQL [2] instead. This way you would be able to change schemas dynamically without restarts (even rolling restart is not needed).
[1] https://apacheignite.readme.io/docs/binary-marshaller [2] https://apacheignite-sql.readme.io/docs -Val -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
