// Override the connection's rpc client for timeout testing
RpcClient oldRpcClient =
((HConnectionManager.HConnectionImplementation)connection).setRpcClient(
rpcClient);
if (oldRpcClient != null) {
oldRpcClient.stop();
}
// run some admin commands
HBaseAdmin.checkHBaseAvailable(conf);
admin.setBalancerRunning(false, false);
} catch (MasterNotRunningException ex) {