现有5个文件块b1-b5,试画出HDFS文件块部署在若干数据节点服务器(DN)上的结构图。其中NN表示名称节点服务器,文件块的备份数量为2。
时间: 2024-02-22 14:59:27 浏览: 50
HDFS组件二-经典分布式文件系统介绍
以下是HDFS文件块部署在若干数据节点服务器(DN)上的结构图:
```
+---------+ +---------+ +---------+
| | | | | |
| DN1 | | DN2 | | DN3 |
| | | | | |
+----+----+ +----+----+ +----+----+
| | |
+----+----+ +----+----+ +----+----+
| | | | | |
| b1-1 | | b1-2 | | b1-3 |
| | | | | |
+----+----+ +----+----+ +----+----+
| | |
+----+----+ +----+----+ +----+----+
| | | | | |
| b2-1 | | b2-2 | | b2-3 |
| | | | | |
+----+----+ +----+----+ +----+----+
| | |
+----+----+ +----+----+ +----+----+
| | | | | |
| b3-1 | | b3-2 | | b3-3 |
| | | | | |
+----+----+ +----+----+ +----+----+
| | |
+----+----+ +----+----+ +----+----+
| | | | | |
| b4-1 | | b4-2 | | b4-3 |
| | | | | |
+----+----+ +----+----+ +----+----+
| | |
+----+----+ +----+----+ +----+----+
| | | | | |
| b5-1 | | b5-2 | | b5-3 |
| | | | | |
+----+----+ +----+----+ +----+----+
| | |
+----+----+ +----+----+ +----+----+
| | | | | |
| b1-4 | | b2-4 | | b5-4 |
| | | | | |
+----+----+ +----+----+ +----+----+
| | |
+----+----+ +----+----+
| | | |
| NN | | b4-4 |
| | | |
+---------+ +---------+
| |
+----+----+ +----+----+
| | | |
| b3-4 | | b5-5 |
| | | |
+----+----+ +----+----+
| |
+----+----+
| |
| b4-5 |
| |
+---------+
```
其中,DN1、DN2、DN3为三个数据节点服务器,b1-b5为5个文件块,每个文件块有2个备份副本,分别分布在不同的数据节点上。NN为名称节点服务器,负责管理文件系统的命名空间和客户端的访问请求。每个文件块的副本分别部署在不同的数据节点上,以确保高可用性和容错性。
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