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
时间: 2023-09-19 13:05:49 浏览: 91
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 |
| | | |
+----+----+ +----+----+
| |
+----+----+ +----+----+
| | | |
| b1-1 | | b2-1 |
| | | |
+----+----+ +----+----+
| |
+----+----+ +----+----+
| | | |
| b1-2 | | b2-2 |
| | | |
+----+----+ +----+----+
| |
+----+----+ +----+----+
| | | |
| b1-3 | | b2-3 |
| | | |
+---------+ +---------+
| |
+----+----+ +----+----+
| | | |
| b3-1 | | b4-1 |
| | | |
+----+----+ +----+----+
| |
+----+----+ +----+----+
| | | |
| b3-2 | | b4-2 |
| | | |
+----+----+ +----+----+
| |
+----+----+ +----+----+
| | | |
| b3-3 | | b4-3 |
| | | |
+---------+ +---------+
| |
+----+----+ +----+----+
| | | |
| b5-1 | | b5-2 |
| | | |
+----+----+ +----+----+
| |
+----+----+ +----+----+
| | | |
| b5-3 | | b5-4 |
| | | |
+----+----+ +----+----+
| |
+----+----+
| |
| NN |
| |
+---------+
```
其中,DN1和DN2为两个数据节点服务器,b1、b2、b3、b4、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。
阅读全文