黑猴子的家：Hadoop 完全分布式，集群基础性能测试

1、上传文件到集群

小文件

[victor@node1 hadoop-2.8.2]$ bin/hdfs dfs -mkdir -p /user/victor/conf
[victor@node1 hadoop-2.8.2]$ bin/hdfs dfs -put etc/hadoop/*-site.xml /user/victor/conf

大文件

[victor@node1 hadoop-2.8.2]$ bin/hdfs dfs -put /opt/software/hadoop-2.8.2.tar.gz /user/victor/conf

2、上传文件后查看元数据和数据存放在什么位置

元数据

[victor@node1 current]$ pwd
/opt/module/hadoop-2.8.2/data/tmp/dfs/name/current

数据

[victor@node1 subdir0]$ pwd
/opt/module/hadoop-2.8.2/data/tmp/dfs/data/current/BP-2073889698-192.168.1.102-1517928608823/current/finalized/subdir0/subdir0

3、拼接

-rw-rw-r--. 1 victor victor   7 Feb   7 09:33 blk_1073741825
-rw-rw-r--. 1 victor victor   11 Feb  7 09:33 blk_1073741825_1001.meta
-rw-rw-r--. 1 victor victor   42 Feb  7 09:33 blk_1073741826
-rw-rw-r--. 1 victor victor   11 Feb  7 09:33 blk_1073741826_1002.meta

[victor@node1 subdir0]$ cat blk_1073741836>>tmpHdfs.file
[victor@node1 subdir0]$ cat blk_1073741837>>tmpHdfs.file
[victor@node1 subdir0]$ tar -xzvf tmpHdfs.file

4、下载

[victor@node1 hadoop-2.8.2]$ bin/hadoop fs -get /user/victor/conf/hadoop-2.8.2.tar.gz