private static void runPipelineCloseAck(String name, int i, DataNodeAction a
) throws IOException {
FiTestUtil.LOG.info("Running " + name + " ...");
final DataTransferTest t = (DataTransferTest)DataTransferTestUtil.initTest();
final MarkerConstraint marker = new MarkerConstraint(name);
t.fiPipelineClose.set(new DatanodeMarkingAction(name, i, marker));
t.fiPipelineAck.set(new ConstraintSatisfactionAction<DatanodeID, IOException>(a, marker));
TestFiDataTransferProtocol.write1byte(name);
}