Thanks for workaround Vladimir. I am using multiple caches. Each cache has key as long and value are POJOs. One is Program Cache of type <Long, ProgramDto> and similar other caches exists. All had this problem. All these value classes are simple POJOs which implement serializable, does not override any of Object classes methods (equals, hashcode, toString etc) and have class attributes of type - long, String, Boolean, java.sql.Timestamp with getter setter methods. All classes do have auto generated "private static final long serialVersionUID "
I also thought of a workaround of having a MBean which ,out of many other tasks, can also restart encapsulated Ignite instance in my custom cache manager. I landed in a issue there which i will share in a separate thread. -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/changed-cache-configuration-and-restarted-server-nodes-Getting-exception-tp3064p3100.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.