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【多选题】
下面哪些选项是HDFS优点:
A.
高可靠性。Hadoop按位存储和处理数据的能力值得人们信赖。
B.
高扩展性。Hadoop是在可用的计算机集簇间分配数据并完成计算任务的，这些集簇可以方便地扩展到数以千计的节点中。
C.
高效性。Hadoop能够在节点之间动态地移动数据，并保证各个节点的动态平衡，因此处理速度非常快。
D.
高容错性。Hadoop能够自动保存数据的多个副本，并且能够自动将失败的任务重新分配。
E.
低成本。与一体机、商用数据仓库以及QlikView、红云 Z-Suite等数据集市相比，hadoop是开源的，项目的软件成本因此会大大降低。
F.
Hadoop带有用Java语言编写的框架，因此运行在 Linux 生产平台上是非常理想的。Hadoop 上的应用程序也可以使用其他语言编写，比如 C++。
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