final ControlledRpcManager rpcManager = replaceRpcManager(cache(0));
final BlockingLocalTopologyManager topologyManager = replaceTopologyManager(manager(0));
final int currentTopologyId = currentTopologyId(cache(0));
rpcManager.blockBefore(ClusteredGetCommand.class);
topologyManager.startBlocking(LatchType.CONSISTENT_HASH_UPDATE);
NewNode joiner = addNode();
topologyManager.waitToBlock(LatchType.CONSISTENT_HASH_UPDATE);
//consistency check. trigger the remote get.