RPC should be sent to trigger 'readyWait' on new pin address. Otherwise, endpoints other than ep[0] may be pinned. Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>
Address https://github.com/coreos/etcd/pull/8762#discussion_r147019068. Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>
Current Watch integration tests haven't covered the balancer switch behavior under server failures. Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>