Hi, This happens because you save Ignite instance in the service and it then can't be deserialized in the user thread. Generally, I would recommend to avoid serialization of Ignite, IgniteCache and similar objects. To do this you can inject Ignite into the service like this:
class MyService implements Service { @IgniteInstanceResource private transient Ignite ignite; ... } Ignite instance will be injected automatically on the node where the service is deployed. -Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Calling-serviceDescriptiors-after-service-deployment-throws-exception-tp5903p5937.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.