Transportclient 502 after Added nodes in cluster

thank you. I'll try it.

BTW, I find that in the client side, our system create more than one java transpotclient instances.

In another discuss( TranspotClient thread sage ), you mentioned the whole jvm need only one client instance. why if there are multiple instances of java client , it will be not thread safe? and what will happen if create multiple clients? I haven't find any explanations in the official document. could you give the answer or some error cases by multiple client instances or the document url ?