@Override
  protected RpcHandler getHandler(final String name, final double handlerFailureThreshhold,
    final int handlerCount, final BlockingQueue<CallRunner> q,
    final AtomicInteger activeHandlerCount, final AtomicInteger failedHandlerCount,
    final Abortable abortable) {
    Deque<FastPathRpcHandler> handlerStack = name.contains("read") ? readHandlerStack
      : name.contains("write") ? writeHandlerStack
      : scanHandlerStack;
    return new FastPathRpcHandler(name, handlerFailureThreshhold, handlerCount, q,
      activeHandlerCount, failedHandlerCount, abortable, handlerStack);
  }
RPC Executor that extends {@link RWQueueRpcExecutor} with fast-path feature, used in
{@link FastPathBalancedQueueRpcExecutor}.
hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/FastPathRWQueueRpcExecutor.java