HDFS集群中大数据运维常用的命令概述
作者：尹正杰
版权声明：原创作品，谢绝转载！否则将追究法律责任。
一.HDFS集群常用命令
1>.查看hdfs集群某路径下的文件或目录
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /outputDir drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls -R / drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir -rw-r--r-- 3 root supergroup 60 2020-03-12 19:20 /inputDir/wc.txt drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /outputDir -rw-r--r-- 3 root supergroup 0 2020-03-12 19:20 /outputDir/_SUCCESS -rw-r--r-- 3 root supergroup 54 2020-03-12 19:20 /outputDir/part-r-00000 drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 15:40 /tmp/hadoop-yarn drwxrwx--- - root supergroup 0 2020-03-12 16:22 /tmp/hadoop-yarn/staging drwxrwx--- - root supergroup 0 2020-03-12 15:40 /tmp/hadoop-yarn/staging/history drwxrwx--- - root supergroup 0 2020-03-12 16:23 /tmp/hadoop-yarn/staging/history/done drwxrwx--- - root supergroup 0 2020-03-12 16:23 /tmp/hadoop-yarn/staging/history/done/2020 drwxrwx--- - root supergroup 0 2020-03-12 16:23 /tmp/hadoop-yarn/staging/history/done/2020/03 drwxrwx--- - root supergroup 0 2020-03-12 16:23 /tmp/hadoop-yarn/staging/history/done/2020/03/12 drwxrwx--- - root supergroup 0 2020-03-12 16:23 /tmp/hadoop-yarn/staging/history/done/2020/03/12/000000 -rwxrwx--- 3 root supergroup 33748 2020-03-12 16:23 /tmp/hadoop-yarn/staging/history/done/2020/03/12/000000/job_1583999614207_0001-1584001369965-root-word+count-1584001390351-1-1-SUCCEEDED-default-1584001376310.jhist -rwxrwx--- 3 root supergroup 203051 2020-03-12 16:23 /tmp/hadoop-yarn/staging/history/done/2020/03/12/000000/job_1583999614207_0001_conf.xml drwxrwxrwt - root supergroup 0 2020-03-12 16:22 /tmp/hadoop-yarn/staging/history/done_intermediate drwxrwx--- - root supergroup 0 2020-03-12 16:23 /tmp/hadoop-yarn/staging/history/done_intermediate/root drwx------ - root supergroup 0 2020-03-12 16:22 /tmp/hadoop-yarn/staging/root drwx------ - root supergroup 0 2020-03-12 19:20 /tmp/hadoop-yarn/staging/root/.staging drwxrwxrwt - root root 0 2020-03-12 19:20 /tmp/logs drwxrwx--- - root root 0 2020-03-12 19:20 /tmp/logs/root drwxrwx--- - root root 0 2020-03-12 19:20 /tmp/logs/root/logs drwxrwx--- - root root 0 2020-03-12 19:21 /tmp/logs/root/logs/application_1584011863930_0001 -rw-r----- 3 root root 58844 2020-03-12 19:21 /tmp/logs/root/logs/application_1584011863930_0001/hadoop103.yinzhengjie.org.cn_25441 -rw-r----- 3 root root 53748 2020-03-12 19:21 /tmp/logs/root/logs/application_1584011863930_0001/hadoop104.yinzhengjie.org.cn_34288 drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie/jobhistory drwxrwx--- - root supergroup 0 2020-03-12 16:54 /yinzhengjie/jobhistory/manager drwxrwx--- - root supergroup 0 2020-03-12 16:54 /yinzhengjie/jobhistory/manager/2020 drwxrwx--- - root supergroup 0 2020-03-12 16:54 /yinzhengjie/jobhistory/manager/2020/03 drwxrwx--- - root supergroup 0 2020-03-12 16:54 /yinzhengjie/jobhistory/manager/2020/03/12 drwxrwx--- - root supergroup 0 2020-03-12 19:20 /yinzhengjie/jobhistory/manager/2020/03/12/000000 -rwxrwx--- 3 root supergroup 33731 2020-03-12 16:54 /yinzhengjie/jobhistory/manager/2020/03/12/000000/job_1584002509171_0001-1584003247341-root-word+count-1584003263906-1-1-SUCCEEDED-default-1584003252477.jhist -rwxrwx--- 3 root supergroup 202992 2020-03-12 16:54 /yinzhengjie/jobhistory/manager/2020/03/12/000000/job_1584002509171_0001_conf.xml -rwxrwx--- 3 root supergroup 33735 2020-03-12 19:09 /yinzhengjie/jobhistory/manager/2020/03/12/000000/job_1584010951301_0001-1584011344282-root-word+count-1584011360241-1-1-SUCCEEDED-default-1584011349879.jhist -rwxrwx--- 3 root supergroup 202988 2020-03-12 19:09 /yinzhengjie/jobhistory/manager/2020/03/12/000000/job_1584010951301_0001_conf.xml -rwxrwx--- 3 root supergroup 33732 2020-03-12 19:20 /yinzhengjie/jobhistory/manager/2020/03/12/000000/job_1584011863930_0001-1584012039874-root-word+count-1584012056179-1-1-SUCCEEDED-default-1584012045689.jhist -rwxrwx--- 3 root supergroup 202988 2020-03-12 19:20 /yinzhengjie/jobhistory/manager/2020/03/12/000000/job_1584011863930_0001_conf.xml drwxrwxrwt - root supergroup 0 2020-03-12 16:54 /yinzhengjie/jobhistory/tmp drwxrwx--- - root supergroup 0 2020-03-12 19:20 /yinzhengjie/jobhistory/tmp/root [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
2>.查看某个目录的文件大小
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -du -x / 60 /inputDir 54 /outputDir 349391 /tmp 710166 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -du / 60 /inputDir 54 /outputDir 349391 /tmp 710166 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -du -s / 1059671 / [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -du -h / 60 /inputDir 54 /outputDir 341.2 K /tmp 693.5 K /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]#
3>.查看文件系统的使用情况
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -df Filesystem Size Used Available Use% hdfs://hadoop101.yinzhengjie.org.cn:9000 4980400128000 3477504 4976186191872 0% [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -df -h Filesystem Size Used Available Use% hdfs://hadoop101.yinzhengjie.org.cn:9000 4.5 T 3.3 M 4.5 T 0% [root@hadoop101.yinzhengjie.org.cn ~]#
4>.查看某个文本文件的内容
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 6 items -rw-r--r-- 3 root supergroup 433 2020-03-16 09:14 /hosts drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /outputDir drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie drwxr-xr-x - root supergroup 0 2020-03-16 09:16 /yum.repos.d [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -cat /hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 #Hadoop cluster 172.200.4.101 hadoop101.yinzhengjie.org.cn 172.200.4.102 hadoop102.yinzhengjie.org.cn 172.200.4.103 hadoop103.yinzhengjie.org.cn 172.200.4.104 hadoop104.yinzhengjie.org.cn 172.200.4.105 hadoop105.yinzhengjie.org.cn 172.200.4.106 hadoop106.yinzhengjie.org.cn [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 6 items -rw-r--r-- 3 root supergroup 433 2020-03-16 09:14 /hosts drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /outputDir drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie drwxr-xr-x - root supergroup 0 2020-03-16 09:16 /yum.repos.d [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -text /hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 #Hadoop cluster 172.200.4.101 hadoop101.yinzhengjie.org.cn 172.200.4.102 hadoop102.yinzhengjie.org.cn 172.200.4.103 hadoop103.yinzhengjie.org.cn 172.200.4.104 hadoop104.yinzhengjie.org.cn 172.200.4.105 hadoop105.yinzhengjie.org.cn 172.200.4.106 hadoop106.yinzhengjie.org.cn [root@hadoop101.yinzhengjie.org.cn ~]#
5>.删除某个文件或目录
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 5 items -rw-r--r-- 3 root supergroup 433 2020-03-16 09:14 /hosts drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /outputDir drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -rm /hosts Deleted /hosts [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /outputDir drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 6 items -rw-r--r-- 3 root supergroup 433 2020-03-16 09:14 /hosts drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /outputDir drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie drwxr-xr-x - root supergroup 0 2020-03-16 09:16 /yum.repos.d [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -rm -r /yum.repos.d Deleted /yum.repos.d [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 5 items -rw-r--r-- 3 root supergroup 433 2020-03-16 09:14 /hosts drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /outputDir drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 5 items -rw-r--r-- 3 root supergroup 433 2020-03-16 09:42 /HOSTS drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /output drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -rm -r /HOSTS /inputDir /output Deleted /HOSTS Deleted /inputDir Deleted /output [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 2 items drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /bigdata drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /bigdata [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -rmdir /bigdata [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /etc Found 1 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc/hadoop [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -rmdir /etc rmdir: `/etc': Directory is not empty [root@hadoop101.yinzhengjie.org.cn ~]#
6>.重命名文件或目录
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 5 items -rw-r--r-- 3 root supergroup 433 2020-03-16 09:37 /hosts drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /outputDir drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -mv /outputDir /output [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 5 items -rw-r--r-- 3 root supergroup 433 2020-03-16 09:37 /hosts drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /output drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 5 items -rw-r--r-- 3 root supergroup 433 2020-03-16 09:37 /hosts drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /output drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -mv /hosts /HOSTS [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 5 items -rw-r--r-- 3 root supergroup 433 2020-03-16 09:37 /HOSTS drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /output drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
7>.创建目录
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 2 items drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -mkdir /bigdata [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /bigdata drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /bigdata drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -mkdir -p /etc/hadoop [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /bigdata drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /etc Found 1 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc/hadoop [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /etc/hadoop [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
8>.创建文件
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -touchz /bigdata.log [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-r--r-- 3 root supergroup 0 2020-03-16 09:59 /bigdata.log drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
9>.修改目录或文件的权限
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -chmod o+x /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--x - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--x - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -chmod o-x /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -chmod g-x /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrw---- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrw---- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -chmod g+x /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -chmod u-w /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp dr-xrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp dr-xrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -chmod u+w /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-r--r-- 3 root supergroup 0 2020-03-16 09:59 /bigdata.log drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -chmod g+w /bigdata.log [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-rw-r-- 3 root supergroup 0 2020-03-16 09:59 /bigdata.log drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]#
10>.修改文件或目录所属组的权限
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-rw-r-- 3 root supergroup 0 2020-03-16 09:59 /bigdata.log drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -chgrp yinzhengjie /bigdata.log [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.log drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.log drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /etc Found 1 items drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc/hadoop [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.log drwxr-xr-x - root supergroup 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -chgrp -R yinzhengjie /etc [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.log drwxr-xr-x - root yinzhengjie 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /etc Found 1 items drwxr-xr-x - root yinzhengjie 0 2020-03-16 09:46 /etc/hadoop [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.log drwxr-xr-x - root yinzhengjie 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -chown yinzhengjie:root /yinzhengjie/ [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.log drwxr-xr-x - root yinzhengjie 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - yinzhengjie root 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yinzhengjie Found 1 items drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie/jobhistory [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.log drwxr-xr-x - root yinzhengjie 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - yinzhengjie root 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yinzhengjie Found 1 items drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie/jobhistory [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -chown -R root:yinzhengjie /yinzhengjie/ [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yinzhengjie Found 1 items drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie/jobhistory [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.log drwxr-xr-x - root yinzhengjie 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]#
11>.修改文件或目录的名称
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.log drwxr-xr-x - root yinzhengjie 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -mv /yinzhengjie /yinzhengjie2020 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.log drwxr-xr-x - root yinzhengjie 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.log drwxr-xr-x - root yinzhengjie 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -mv /bigdata.log /bigdata.txt [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.txt drwxr-xr-x - root yinzhengjie 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 [root@hadoop101.yinzhengjie.org.cn ~]#
12>.拷贝文件或目录
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.txt drwxr-xr-x - root yinzhengjie 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -cp /bigdata.txt /bigdata.log [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 5 items -rw-r--r-- 3 root supergroup 0 2020-03-16 10:13 /bigdata.log -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.txt drwxr-xr-x - root yinzhengjie 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 5 items -rw-r--r-- 3 root supergroup 0 2020-03-16 10:13 /bigdata.log -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.txt drwxr-xr-x - root yinzhengjie 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yinzhengjie2020 Found 1 items drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020/jobhistory [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -cp /yinzhengjie2020 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 6 items -rw-r--r-- 3 root supergroup 0 2020-03-16 10:13 /bigdata.log -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.txt drwxr-xr-x - root yinzhengjie 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxr-xr-x - root supergroup 0 2020-03-16 10:14 /yinzhengjie drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yinzhengjie/ Found 1 items drwxr-xr-x - root supergroup 0 2020-03-16 10:14 /yinzhengjie/jobhistory [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
13>.查看文件的校验和
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 6 items -rw-r--r-- 3 root supergroup 0 2020-03-16 10:13 /bigdata.log -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.txt drwxr-xr-x - root yinzhengjie 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxr-xr-x - root supergroup 0 2020-03-16 10:14 /yinzhengjie drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -checksum /bigdata.log /bigdata.log MD5-of-0MD5-of-0CRC32 00000000000000000000000070bc8f4b72a86921468bf8e8441dce51 [root@hadoop101.yinzhengjie.org.cn ~]#
14>.设置HDFS中文件的副本数量
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-r--r-- 3 root supergroup 433 2020-03-16 10:27 /hosts drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 drwxr-xr-x - root supergroup 0 2020-03-16 10:28 /yum.repos.d [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -setrep 2 /hosts Replication 2 set: /hosts [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-r--r-- 2 root supergroup 433 2020-03-16 10:27 /hosts drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 drwxr-xr-x - root supergroup 0 2020-03-16 10:28 /yum.repos.d [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yinzhengjie2020/jobhistory/manager/2020/03/12/000000 Found 6 items -rwxrwx--- 3 root yinzhengjie 33731 2020-03-12 16:54 /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584002509171_0001-1584003247341-root-word+count-1584003263906-1-1-SUCCEEDED-default-1584003252477.jhist -rwxrwx--- 3 root yinzhengjie 202992 2020-03-12 16:54 /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584002509171_0001_conf.xml -rwxrwx--- 3 root yinzhengjie 33735 2020-03-12 19:09 /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584010951301_0001-1584011344282-root-word+count-1584011360241-1-1-SUCCEEDED-default-1584011349879.jhist -rwxrwx--- 3 root yinzhengjie 202988 2020-03-12 19:09 /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584010951301_0001_conf.xml -rwxrwx--- 3 root yinzhengjie 33732 2020-03-12 19:20 /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584011863930_0001-1584012039874-root-word+count-1584012056179-1-1-SUCCEEDED-default-1584012045689.jhist -rwxrwx--- 3 root yinzhengjie 202988 2020-03-12 19:20 /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584011863930_0001_conf.xml [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -setrep -R 2 /yinzhengjie2020 Replication 2 set: /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584002509171_0001-1584003247341-root-word+count-1584003263906-1-1-SUCCEEDED-default-1584003252477.jhist Replication 2 set: /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584002509171_0001_conf.xml Replication 2 set: /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584010951301_0001-1584011344282-root-word+count-1584011360241-1-1-SUCCEEDED-default-1584011349879.jhist Replication 2 set: /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584010951301_0001_conf.xml Replication 2 set: /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584011863930_0001-1584012039874-root-word+count-1584012056179-1-1-SUCCEEDED-default-1584012045689.jhist Replication 2 set: /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584011863930_0001_conf.xml [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yinzhengjie2020/jobhistory/manager/2020/03/12/000000 Found 6 items -rwxrwx--- 2 root yinzhengjie 33731 2020-03-12 16:54 /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584002509171_0001-1584003247341-root-word+count-1584003263906-1-1-SUCCEEDED-default-1584003252477.jhist -rwxrwx--- 2 root yinzhengjie 202992 2020-03-12 16:54 /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584002509171_0001_conf.xml -rwxrwx--- 2 root yinzhengjie 33735 2020-03-12 19:09 /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584010951301_0001-1584011344282-root-word+count-1584011360241-1-1-SUCCEEDED-default-1584011349879.jhist -rwxrwx--- 2 root yinzhengjie 202988 2020-03-12 19:09 /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584010951301_0001_conf.xml -rwxrwx--- 2 root yinzhengjie 33732 2020-03-12 19:20 /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584011863930_0001-1584012039874-root-word+count-1584012056179-1-1-SUCCEEDED-default-1584012045689.jhist -rwxrwx--- 2 root yinzhengjie 202988 2020-03-12 19:20 /yinzhengjie2020/jobhistory/manager/2020/03/12/000000/job_1584011863930_0001_conf.xml [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
15>.下载文件到本地
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 6 items -rw-r--r-- 3 root supergroup 0 2020-03-16 10:13 /bigdata.log -rw-rw-r-- 3 root yinzhengjie 0 2020-03-16 09:59 /bigdata.txt drwxr-xr-x - root yinzhengjie 0 2020-03-16 09:46 /etc drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxr-xr-x - root supergroup 0 2020-03-16 10:14 /yinzhengjie drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# ll total 0 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -get /bigdata.log [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# ll total 0 -rw-r--r-- 1 root root 0 Mar 16 10:21 bigdata.log [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-r--r-- 2 root supergroup 433 2020-03-16 10:27 /hosts drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 drwxr-xr-x - root supergroup 0 2020-03-16 10:28 /yum.repos.d [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# ll total 0 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -copyToLocal /hosts [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# ll total 4 -rw-r--r-- 1 root root 433 Mar 16 10:57 hosts [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# cat hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 #Hadoop cluster 172.200.4.101 hadoop101.yinzhengjie.org.cn 172.200.4.102 hadoop102.yinzhengjie.org.cn 172.200.4.103 hadoop103.yinzhengjie.org.cn 172.200.4.104 hadoop104.yinzhengjie.org.cn 172.200.4.105 hadoop105.yinzhengjie.org.cn 172.200.4.106 hadoop106.yinzhengjie.org.cn [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -text /hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 #Hadoop cluster 172.200.4.101 hadoop101.yinzhengjie.org.cn 172.200.4.102 hadoop102.yinzhengjie.org.cn 172.200.4.103 hadoop103.yinzhengjie.org.cn 172.200.4.104 hadoop104.yinzhengjie.org.cn 172.200.4.105 hadoop105.yinzhengjie.org.cn 172.200.4.106 hadoop106.yinzhengjie.org.cn [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# ll total 0 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 5 items -rw-r--r-- 3 root supergroup 86 2020-03-16 11:15 /host.log -rw-r--r-- 2 root supergroup 519 2020-03-16 11:09 /hosts drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 drwxr-xr-x - root supergroup 0 2020-03-16 10:28 /yum.repos.d [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -text /host.log 172.200.4.107 hadoop107.yinzhengjie.org.cn 172.200.4.108 hadoop108.yinzhengjie.org.cn [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -text /hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 #Hadoop cluster 172.200.4.101 hadoop101.yinzhengjie.org.cn 172.200.4.102 hadoop102.yinzhengjie.org.cn 172.200.4.103 hadoop103.yinzhengjie.org.cn 172.200.4.104 hadoop104.yinzhengjie.org.cn 172.200.4.105 hadoop105.yinzhengjie.org.cn 172.200.4.106 hadoop106.yinzhengjie.org.cn 172.200.4.107 hadoop107.yinzhengjie.org.cn 172.200.4.108 hadoop108.yinzhengjie.org.cn [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -getmerge /host.log /hosts merge.log [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# ll total 4 -rw-r--r-- 1 root root 605 Mar 16 11:21 merge.log [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# cat merge.log 172.200.4.107 hadoop107.yinzhengjie.org.cn 172.200.4.108 hadoop108.yinzhengjie.org.cn 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 #Hadoop cluster 172.200.4.101 hadoop101.yinzhengjie.org.cn 172.200.4.102 hadoop102.yinzhengjie.org.cn 172.200.4.103 hadoop103.yinzhengjie.org.cn 172.200.4.104 hadoop104.yinzhengjie.org.cn 172.200.4.105 hadoop105.yinzhengjie.org.cn 172.200.4.106 hadoop106.yinzhengjie.org.cn 172.200.4.107 hadoop107.yinzhengjie.org.cn 172.200.4.108 hadoop108.yinzhengjie.org.cn [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
16>.将本地文件或目录上传到HDFS集群
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /outputDir drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# cat /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 #Hadoop cluster 172.200.4.101 hadoop101.yinzhengjie.org.cn 172.200.4.102 hadoop102.yinzhengjie.org.cn 172.200.4.103 hadoop103.yinzhengjie.org.cn 172.200.4.104 hadoop104.yinzhengjie.org.cn 172.200.4.105 hadoop105.yinzhengjie.org.cn 172.200.4.106 hadoop106.yinzhengjie.org.cn [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -put /etc/hosts / [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 5 items -rw-r--r-- 3 root supergroup 433 2020-03-16 09:14 /hosts drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /outputDir drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 5 items -rw-r--r-- 3 root supergroup 433 2020-03-16 09:14 /hosts drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /outputDir drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# ll /etc/yum.repos.d/ total 32 -rw-r--r--. 1 root root 1664 Nov 23 2018 CentOS-Base.repo -rw-r--r--. 1 root root 1309 Nov 23 2018 CentOS-CR.repo -rw-r--r--. 1 root root 649 Nov 23 2018 CentOS-Debuginfo.repo -rw-r--r--. 1 root root 314 Nov 23 2018 CentOS-fasttrack.repo -rw-r--r--. 1 root root 630 Nov 23 2018 CentOS-Media.repo -rw-r--r--. 1 root root 1331 Nov 23 2018 CentOS-Sources.repo -rw-r--r--. 1 root root 5701 Nov 23 2018 CentOS-Vault.repo [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -put /etc/yum.repos.d/ / [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 6 items -rw-r--r-- 3 root supergroup 433 2020-03-16 09:14 /hosts drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /inputDir drwxr-xr-x - root supergroup 0 2020-03-12 19:20 /outputDir drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie drwxr-xr-x - root supergroup 0 2020-03-16 09:16 /yum.repos.d [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yum.repos.d Found 7 items -rw-r--r-- 3 root supergroup 1664 2020-03-16 09:16 /yum.repos.d/CentOS-Base.repo -rw-r--r-- 3 root supergroup 1309 2020-03-16 09:16 /yum.repos.d/CentOS-CR.repo -rw-r--r-- 3 root supergroup 649 2020-03-16 09:16 /yum.repos.d/CentOS-Debuginfo.repo -rw-r--r-- 3 root supergroup 630 2020-03-16 09:16 /yum.repos.d/CentOS-Media.repo -rw-r--r-- 3 root supergroup 1331 2020-03-16 09:16 /yum.repos.d/CentOS-Sources.repo -rw-r--r-- 3 root supergroup 5701 2020-03-16 09:16 /yum.repos.d/CentOS-Vault.repo -rw-r--r-- 3 root supergroup 314 2020-03-16 09:16 /yum.repos.d/CentOS-fasttrack.repo [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 2 items drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -copyFromLocal /etc/hosts / [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items -rw-r--r-- 3 root supergroup 433 2020-03-16 10:27 /hosts drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# ll /etc/yum.repos.d/ total 32 -rw-r--r--. 1 root root 1664 Nov 23 2018 CentOS-Base.repo -rw-r--r--. 1 root root 1309 Nov 23 2018 CentOS-CR.repo -rw-r--r--. 1 root root 649 Nov 23 2018 CentOS-Debuginfo.repo -rw-r--r--. 1 root root 314 Nov 23 2018 CentOS-fasttrack.repo -rw-r--r--. 1 root root 630 Nov 23 2018 CentOS-Media.repo -rw-r--r--. 1 root root 1331 Nov 23 2018 CentOS-Sources.repo -rw-r--r--. 1 root root 5701 Nov 23 2018 CentOS-Vault.repo [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -copyFromLocal /etc/yum.repos.d / [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-r--r-- 3 root supergroup 433 2020-03-16 10:27 /hosts drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 drwxr-xr-x - root supergroup 0 2020-03-16 10:28 /yum.repos.d [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yum.repos.d Found 7 items -rw-r--r-- 3 root supergroup 1664 2020-03-16 10:28 /yum.repos.d/CentOS-Base.repo -rw-r--r-- 3 root supergroup 1309 2020-03-16 10:28 /yum.repos.d/CentOS-CR.repo -rw-r--r-- 3 root supergroup 649 2020-03-16 10:28 /yum.repos.d/CentOS-Debuginfo.repo -rw-r--r-- 3 root supergroup 630 2020-03-16 10:28 /yum.repos.d/CentOS-Media.repo -rw-r--r-- 3 root supergroup 1331 2020-03-16 10:28 /yum.repos.d/CentOS-Sources.repo -rw-r--r-- 3 root supergroup 5701 2020-03-16 10:28 /yum.repos.d/CentOS-Vault.repo -rw-r--r-- 3 root supergroup 314 2020-03-16 10:28 /yum.repos.d/CentOS-fasttrack.repo [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 4 items -rw-r--r-- 2 root supergroup 519 2020-03-16 11:09 /hosts drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 drwxr-xr-x - root supergroup 0 2020-03-16 10:28 /yum.repos.d [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# ll total 4 -rw-r--r-- 1 root root 86 Mar 16 11:08 host.log [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -moveFromLocal host.log / [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# ll total 0 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 5 items -rw-r--r-- 3 root supergroup 86 2020-03-16 11:15 /host.log -rw-r--r-- 2 root supergroup 519 2020-03-16 11:09 /hosts drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root yinzhengjie 0 2020-03-12 16:51 /yinzhengjie2020 drwxr-xr-x - root supergroup 0 2020-03-16 10:28 /yum.repos.d [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
17>.将本地文件内容追加到hdfs集群中已经存在的文件
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -text /hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 #Hadoop cluster 172.200.4.101 hadoop101.yinzhengjie.org.cn 172.200.4.102 hadoop102.yinzhengjie.org.cn 172.200.4.103 hadoop103.yinzhengjie.org.cn 172.200.4.104 hadoop104.yinzhengjie.org.cn 172.200.4.105 hadoop105.yinzhengjie.org.cn 172.200.4.106 hadoop106.yinzhengjie.org.cn [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# ll total 4 -rw-r--r-- 1 root root 86 Mar 16 11:08 host.log [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# cat host.log 172.200.4.107 hadoop107.yinzhengjie.org.cn 172.200.4.108 hadoop108.yinzhengjie.org.cn [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -appendToFile host.log /hosts [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# ll total 4 -rw-r--r-- 1 root root 86 Mar 16 11:08 host.log [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -text /hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 #Hadoop cluster 172.200.4.101 hadoop101.yinzhengjie.org.cn 172.200.4.102 hadoop102.yinzhengjie.org.cn 172.200.4.103 hadoop103.yinzhengjie.org.cn 172.200.4.104 hadoop104.yinzhengjie.org.cn 172.200.4.105 hadoop105.yinzhengjie.org.cn 172.200.4.106 hadoop106.yinzhengjie.org.cn 172.200.4.107 hadoop107.yinzhengjie.org.cn 172.200.4.108 hadoop108.yinzhengjie.org.cn [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
18>.显示一个文件的末尾
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -tail /hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 #Hadoop cluster 172.200.4.101 hadoop101.yinzhengjie.org.cn 172.200.4.102 hadoop102.yinzhengjie.org.cn 172.200.4.103 hadoop103.yinzhengjie.org.cn 172.200.4.104 hadoop104.yinzhengjie.org.cn 172.200.4.105 hadoop105.yinzhengjie.org.cn 172.200.4.106 hadoop106.yinzhengjie.org.cn 172.200.4.107 hadoop107.yinzhengjie.org.cn 172.200.4.108 hadoop108.yinzhengjie.org.cn [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -tail -f /hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 #Hadoop cluster 172.200.4.101 hadoop101.yinzhengjie.org.cn 172.200.4.102 hadoop102.yinzhengjie.org.cn 172.200.4.103 hadoop103.yinzhengjie.org.cn 172.200.4.104 hadoop104.yinzhengjie.org.cn 172.200.4.105 hadoop105.yinzhengjie.org.cn 172.200.4.106 hadoop106.yinzhengjie.org.cn 172.200.4.107 hadoop107.yinzhengjie.org.cn 172.200.4.108 hadoop108.yinzhengjie.org.cn
19>.查看命令的帮助信息
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -help rm -rm [-f] [-r|-R] [-skipTrash] [-safely] <src> ... : Delete all files that match the specified file pattern. Equivalent to the Unix command "rm <src>" -f If the file does not exist, do not display a diagnostic message or modify the exit status to reflect an error. -[rR] Recursively deletes directories. -skipTrash option bypasses trash, if enabled, and immediately deletes <src>. -safely option requires safety confirmation, if enabled, requires confirmation before deleting large directory with more than <hadoop.shell.delete.limit.num.files> files. Delay is expected when walking over large directory recursively to count the number of files to be deleted before the confirmation. [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -help mkdir -mkdir [-p] <path> ... : Create a directory in specified location. -p Do not fail if the directory already exists [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -help cp -cp [-f] [-p | -p[topax]] [-d] <src> ... <dst> : Copy files that match the file pattern <src> to a destination. When copying multiple files, the destination must be a directory. Passing -p preserves status [topax] (timestamps, ownership, permission, ACLs, XAttr). If -p is specified with no <arg>, then preserves timestamps, ownership, permission. If -pa is specified, then preserves permission also because ACL is a super-set of permission. Passing -f overwrites the destination if it already exists. raw namespace extended attributes are preserved if (1) they are supported (HDFS only) and, (2) all of the source and target pathnames are in the /.reserved/raw hierarchy. raw namespace xattr preservation is determined solely by the presence (or absence) of the /.reserved/raw prefix and not by the -p option. Passing -d will skip creation of temporary file(<dst>._COPYING_). [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -help setrep -setrep [-R] [-w] <rep> <path> ... : Set the replication level of a file. If <path> is a directory then the command recursively changes the replication factor of all files under the directory tree rooted at <path>. -w It requests that the command waits for the replication to complete. This can potentially take a very long time. -R It is accepted for backwards compatibility. It has no effect. [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -help getmerge -getmerge [-nl] [-skip-empty-file] <src> <localdst> : Get all the files in the directories that match the source file pattern and merge and sort them to only one file on local fs. <src> is kept. -nl Add a newline character at the end of each file. -skip-empty-file Do not add new line character for empty file. [root@hadoop101.yinzhengjie.org.cn ~]#
二.NameNode的镜像文件和编辑日志管理相关命令
1>.下载镜像文件
[root@hadoop101.yinzhengjie.org.cn ~]# ll /yinzhengjie/softwares/hadoop-2.10.0/data/tmp/dfs/name/current/ total 10396 -rw-r--r-- 1 root root 42 Mar 12 03:27 edits_0000000000000000001-0000000000000000002 -rw-r--r-- 1 root root 42 Mar 12 03:27 edits_0000000000000000003-0000000000000000004 -rw-r--r-- 1 root root 1048576 Mar 12 03:27 edits_0000000000000000005-0000000000000000005 -rw-r--r-- 1 root root 1048576 Mar 12 03:27 edits_0000000000000000006-0000000000000000006 -rw-r--r-- 1 root root 42 Mar 12 03:29 edits_0000000000000000007-0000000000000000008 -rw-r--r-- 1 root root 1048576 Mar 12 03:29 edits_0000000000000000009-0000000000000000009 -rw-r--r-- 1 root root 42 Mar 12 03:32 edits_0000000000000000010-0000000000000000011 -rw-r--r-- 1 root root 42 Mar 12 04:32 edits_0000000000000000012-0000000000000000013 -rw-r--r-- 1 root root 1048576 Mar 12 04:32 edits_0000000000000000014-0000000000000000014 -rw-r--r-- 1 root root 42 Mar 12 04:57 edits_0000000000000000015-0000000000000000016 -rw-r--r-- 1 root root 1048576 Mar 12 04:57 edits_0000000000000000017-0000000000000000017 -rw-r--r-- 1 root root 42 Mar 12 05:03 edits_0000000000000000018-0000000000000000019 -rw-r--r-- 1 root root 1048576 Mar 12 05:03 edits_0000000000000000020-0000000000000000020 -rw-r--r-- 1 root root 42 Mar 12 07:46 edits_0000000000000000021-0000000000000000022 -rw-r--r-- 1 root root 1048576 Mar 12 07:46 edits_0000000000000000023-0000000000000000023 -rw-r--r-- 1 root root 42 Mar 12 08:41 edits_0000000000000000024-0000000000000000025 -rw-r--r-- 1 root root 42 Mar 12 09:41 edits_0000000000000000026-0000000000000000027 -rw-r--r-- 1 root root 42 Mar 12 10:41 edits_0000000000000000028-0000000000000000029 -rw-r--r-- 1 root root 42 Mar 12 11:41 edits_0000000000000000030-0000000000000000031 -rw-r--r-- 1 root root 42 Mar 12 12:41 edits_0000000000000000032-0000000000000000033 -rw-r--r-- 1 root root 42 Mar 12 13:41 edits_0000000000000000034-0000000000000000035 -rw-r--r-- 1 root root 42 Mar 12 14:41 edits_0000000000000000036-0000000000000000037 -rw-r--r-- 1 root root 672 Mar 12 15:41 edits_0000000000000000038-0000000000000000046 -rw-r--r-- 1 root root 1048576 Mar 12 15:41 edits_0000000000000000047-0000000000000000047 -rw-r--r-- 1 root root 42 Mar 12 15:54 edits_0000000000000000048-0000000000000000049 -rw-r--r-- 1 root root 23130 Mar 12 16:54 edits_0000000000000000050-0000000000000000237 -rw-r--r-- 1 root root 1140 Mar 12 17:54 edits_0000000000000000238-0000000000000000246 -rw-r--r-- 1 root root 42 Mar 12 18:54 edits_0000000000000000247-0000000000000000248 -rw-r--r-- 1 root root 24270 Mar 12 19:54 edits_0000000000000000249-0000000000000000448 -rw-r--r-- 1 root root 1048576 Mar 12 19:54 edits_0000000000000000449-0000000000000000449 -rw-r--r-- 1 root root 42 Mar 17 15:07 edits_0000000000000000450-0000000000000000451 -rw-r--r-- 1 root root 42 Mar 17 16:07 edits_0000000000000000452-0000000000000000453 -rw-r--r-- 1 root root 1048576 Mar 17 16:07 edits_inprogress_0000000000000000454 -rw-r--r-- 1 root root 3595 Mar 17 14:08 fsimage_0000000000000000449 -rw-r--r-- 1 root root 62 Mar 17 14:08 fsimage_0000000000000000449.md5 -rw-r--r-- 1 root root 3595 Mar 17 16:07 fsimage_0000000000000000453 -rw-r--r-- 1 root root 62 Mar 17 16:07 fsimage_0000000000000000453.md5 -rw-r--r-- 1 root root 4 Mar 17 16:07 seen_txid -rw-r--r-- 1 root root 217 Mar 17 14:08 VERSION [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# ll total 0 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs oiv -p XML -i /yinzhengjie/softwares/hadoop-2.10.0/data/tmp/dfs/name/current/fsimage_0000000000000000453 -o ./fsimage.xml 20/03/17 16:47:56 INFO offlineImageViewer.FSImageHandler: Loading 3 strings [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# ll total 16 -rw-r--r-- 1 root root 13956 Mar 17 16:47 fsimage.xml [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
2>.下载编辑日志
[root@hadoop101.yinzhengjie.org.cn ~]# ll /yinzhengjie/softwares/hadoop-2.10.0/data/tmp/dfs/name/current/ total 10396 -rw-r--r-- 1 root root 42 Mar 12 03:27 edits_0000000000000000001-0000000000000000002 -rw-r--r-- 1 root root 42 Mar 12 03:27 edits_0000000000000000003-0000000000000000004 -rw-r--r-- 1 root root 1048576 Mar 12 03:27 edits_0000000000000000005-0000000000000000005 -rw-r--r-- 1 root root 1048576 Mar 12 03:27 edits_0000000000000000006-0000000000000000006 -rw-r--r-- 1 root root 42 Mar 12 03:29 edits_0000000000000000007-0000000000000000008 -rw-r--r-- 1 root root 1048576 Mar 12 03:29 edits_0000000000000000009-0000000000000000009 -rw-r--r-- 1 root root 42 Mar 12 03:32 edits_0000000000000000010-0000000000000000011 -rw-r--r-- 1 root root 42 Mar 12 04:32 edits_0000000000000000012-0000000000000000013 -rw-r--r-- 1 root root 1048576 Mar 12 04:32 edits_0000000000000000014-0000000000000000014 -rw-r--r-- 1 root root 42 Mar 12 04:57 edits_0000000000000000015-0000000000000000016 -rw-r--r-- 1 root root 1048576 Mar 12 04:57 edits_0000000000000000017-0000000000000000017 -rw-r--r-- 1 root root 42 Mar 12 05:03 edits_0000000000000000018-0000000000000000019 -rw-r--r-- 1 root root 1048576 Mar 12 05:03 edits_0000000000000000020-0000000000000000020 -rw-r--r-- 1 root root 42 Mar 12 07:46 edits_0000000000000000021-0000000000000000022 -rw-r--r-- 1 root root 1048576 Mar 12 07:46 edits_0000000000000000023-0000000000000000023 -rw-r--r-- 1 root root 42 Mar 12 08:41 edits_0000000000000000024-0000000000000000025 -rw-r--r-- 1 root root 42 Mar 12 09:41 edits_0000000000000000026-0000000000000000027 -rw-r--r-- 1 root root 42 Mar 12 10:41 edits_0000000000000000028-0000000000000000029 -rw-r--r-- 1 root root 42 Mar 12 11:41 edits_0000000000000000030-0000000000000000031 -rw-r--r-- 1 root root 42 Mar 12 12:41 edits_0000000000000000032-0000000000000000033 -rw-r--r-- 1 root root 42 Mar 12 13:41 edits_0000000000000000034-0000000000000000035 -rw-r--r-- 1 root root 42 Mar 12 14:41 edits_0000000000000000036-0000000000000000037 -rw-r--r-- 1 root root 672 Mar 12 15:41 edits_0000000000000000038-0000000000000000046 -rw-r--r-- 1 root root 1048576 Mar 12 15:41 edits_0000000000000000047-0000000000000000047 -rw-r--r-- 1 root root 42 Mar 12 15:54 edits_0000000000000000048-0000000000000000049 -rw-r--r-- 1 root root 23130 Mar 12 16:54 edits_0000000000000000050-0000000000000000237 -rw-r--r-- 1 root root 1140 Mar 12 17:54 edits_0000000000000000238-0000000000000000246 -rw-r--r-- 1 root root 42 Mar 12 18:54 edits_0000000000000000247-0000000000000000248 -rw-r--r-- 1 root root 24270 Mar 12 19:54 edits_0000000000000000249-0000000000000000448 -rw-r--r-- 1 root root 1048576 Mar 12 19:54 edits_0000000000000000449-0000000000000000449 -rw-r--r-- 1 root root 42 Mar 17 15:07 edits_0000000000000000450-0000000000000000451 -rw-r--r-- 1 root root 42 Mar 17 16:07 edits_0000000000000000452-0000000000000000453 -rw-r--r-- 1 root root 1048576 Mar 17 16:07 edits_inprogress_0000000000000000454 -rw-r--r-- 1 root root 3595 Mar 17 14:08 fsimage_0000000000000000449 -rw-r--r-- 1 root root 62 Mar 17 14:08 fsimage_0000000000000000449.md5 -rw-r--r-- 1 root root 3595 Mar 17 16:07 fsimage_0000000000000000453 -rw-r--r-- 1 root root 62 Mar 17 16:07 fsimage_0000000000000000453.md5 -rw-r--r-- 1 root root 4 Mar 17 16:07 seen_txid -rw-r--r-- 1 root root 217 Mar 17 14:08 VERSION [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# ll total 16 -rw-r--r-- 1 root root 13956 Mar 17 16:47 fsimage.xml [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs oev -p XML -i /yinzhengjie/softwares/hadoop-2.10.0/data/tmp/dfs/name/current/edits_inprogress_0000000000000000454 -o ./edits.xml [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# ll total 20 -rw-r--r-- 1 root root 204 Mar 17 16:54 edits.xml -rw-r--r-- 1 root root 13956 Mar 17 16:47 fsimage.xml [root@hadoop101.yinzhengjie.org.cn ~]#
3>.
三.其它常用命令
1>.集群键数据拷贝
比如将"hdfs://hadoop101.yinzhengjie.org.cn:9000/yinzhengjie/hosts"的文件拷贝到另一个HDFS集群"hdfs://hadoop110.yinzhengjie.org.cn:9000/yinzhengjie2020/hosts" [root@hadoop101.yinzhengjie.org.cn ~]# hadoop distcp hdfs://hadoop101.yinzhengjie.org.cn:9000/yinzhengjie/hosts hdfs://hadoop110.yinzhengjie.org.cn:9000/yinzhengjie2020/hosts 博主推荐阅读: http://hadoop.apache.org/docs/stable3/hadoop-distcp/DistCp.html
2>.归档小文件
HDFS存储小文件的弊端分析:
每个文件均按块存储，每个块的元数据存储在NameNode的内存中，因此HDFS存储小文件会非常低效率。因为大量小文件会耗尽NameNode中的大部分内存。但注意，存储小文件所需要的磁盘容量和数据块的大小无关。
例如,一个1MB的文件设置未128MB的块存储，实际使用的是1MB的磁盘空间，而不是128MB空间哟。
解决方案:
HDFS存档文件或HAR文件，是一个更高效的文件存档工具，它将文件存储HDFS块，在减少NameNode内存使用的同时，允许对文件进行透明的访问。
具体来说，HDFS存档文件对内还是一个一个独立文件，对NameNode而言却是一个整体一，减少了NameNode的内存消耗。
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-17 23:17 /yinzhengjie drwxr-xr-x - root supergroup 0 2020-03-17 23:20 /yum.repos.d [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yinzhengjie Found 1 items drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie/jobhistory [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yum.repos.d Found 7 items -rw-r--r-- 3 root supergroup 1664 2020-03-17 23:20 /yum.repos.d/CentOS-Base.repo -rw-r--r-- 3 root supergroup 1309 2020-03-17 23:20 /yum.repos.d/CentOS-CR.repo -rw-r--r-- 3 root supergroup 649 2020-03-17 23:20 /yum.repos.d/CentOS-Debuginfo.repo -rw-r--r-- 3 root supergroup 630 2020-03-17 23:20 /yum.repos.d/CentOS-Media.repo -rw-r--r-- 3 root supergroup 1331 2020-03-17 23:20 /yum.repos.d/CentOS-Sources.repo -rw-r--r-- 3 root supergroup 5701 2020-03-17 23:20 /yum.repos.d/CentOS-Vault.repo -rw-r--r-- 3 root supergroup 314 2020-03-17 23:20 /yum.repos.d/CentOS-fasttrack.repo [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hadoop archive -archiveName myFile.har -p /yum.repos.d /yinzhengjie 20/03/17 23:21:33 INFO client.RMProxy: Connecting to ResourceManager at hadoop106.yinzhengjie.org.cn/172.200.4.106:8032 20/03/17 23:21:34 INFO client.RMProxy: Connecting to ResourceManager at hadoop106.yinzhengjie.org.cn/172.200.4.106:8032 20/03/17 23:21:34 INFO client.RMProxy: Connecting to ResourceManager at hadoop106.yinzhengjie.org.cn/172.200.4.106:8032 20/03/17 23:21:34 INFO mapreduce.JobSubmitter: number of splits:1 20/03/17 23:21:34 INFO Configuration.deprecation: yarn.resourcemanager.system-metrics-publisher.enabled is deprecated. Instead, use yarn.system-metrics-publisher.enabled20/03/17 23:21:34 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1584457946785_0002 20/03/17 23:21:34 INFO conf.Configuration: resource-types.xml not found 20/03/17 23:21:34 INFO resource.ResourceUtils: Unable to find 'resource-types.xml'. 20/03/17 23:21:34 INFO resource.ResourceUtils: Adding resource type - name = memory-mb, units = Mi, type = COUNTABLE 20/03/17 23:21:34 INFO resource.ResourceUtils: Adding resource type - name = vcores, units = , type = COUNTABLE 20/03/17 23:21:35 INFO impl.YarnClientImpl: Submitted application application_1584457946785_0002 20/03/17 23:21:35 INFO mapreduce.Job: The url to track the job: http://hadoop106.yinzhengjie.org.cn:8088/proxy/application_158445794 6785_0002/20/03/17 23:21:35 INFO mapreduce.Job: Running job: job_1584457946785_0002 20/03/17 23:21:40 INFO mapreduce.Job: Job job_1584457946785_0002 running in uber mode : false 20/03/17 23:21:40 INFO mapreduce.Job: map 0% reduce 0% 20/03/17 23:21:48 INFO mapreduce.Job: map 100% reduce 0% 20/03/17 23:21:52 INFO mapreduce.Job: map 100% reduce 100% 20/03/17 23:21:52 INFO mapreduce.Job: Job job_1584457946785_0002 completed successfully 20/03/17 23:21:52 INFO mapreduce.Job: Counters: 49 File System Counters FILE: Number of bytes read=782 FILE: Number of bytes written=416013 FILE: Number of read operations=0 FILE: Number of large read operations=0 FILE: Number of write operations=0 HDFS: Number of bytes read=12415 HDFS: Number of bytes written=12347 HDFS: Number of read operations=24 HDFS: Number of large read operations=0 HDFS: Number of write operations=11 Job Counters Launched map tasks=1 Launched reduce tasks=1 Other local map tasks=1 Total time spent by all maps in occupied slots (ms)=5851 Total time spent by all reduces in occupied slots (ms)=2067 Total time spent by all map tasks (ms)=5851 Total time spent by all reduce tasks (ms)=2067 Total vcore-milliseconds taken by all map tasks=5851 Total vcore-milliseconds taken by all reduce tasks=2067 Total megabyte-milliseconds taken by all map tasks=5991424 Total megabyte-milliseconds taken by all reduce tasks=2116608 Map-Reduce Framework Map input records=8 Map output records=8 Map output bytes=759 Map output materialized bytes=782 Input split bytes=116 Combine input records=0 Combine output records=0 Reduce input groups=8 Reduce shuffle bytes=782 Reduce input records=8 Reduce output records=0 Spilled Records=16 Shuffled Maps =1 Failed Shuffles=0 Merged Map outputs=1 GC time elapsed (ms)=417 CPU time spent (ms)=2840 Physical memory (bytes) snapshot=486158336 Virtual memory (bytes) snapshot=4331356160 Total committed heap usage (bytes)=287309824 Shuffle Errors BAD_ID=0 CONNECTION=0 IO_ERROR=0 WRONG_LENGTH=0 WRONG_MAP=0 WRONG_REDUCE=0 File Input Format Counters Bytes Read=701 File Output Format Counters Bytes Written=0 [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls / Found 3 items drwxrwx--- - root supergroup 0 2020-03-12 19:20 /tmp drwxrwx--- - root supergroup 0 2020-03-17 23:21 /yinzhengjie drwxr-xr-x - root supergroup 0 2020-03-17 23:20 /yum.repos.d [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yinzhengjie/ Found 2 items drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie/jobhistory drwxr-xr-x - root supergroup 0 2020-03-17 23:21 /yinzhengjie/myFile.har [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yinzhengjie/myFile.har Found 4 items -rw-r--r-- 3 root supergroup 0 2020-03-17 23:21 /yinzhengjie/myFile.har/_SUCCESS -rw-r--r-- 3 root supergroup 726 2020-03-17 23:21 /yinzhengjie/myFile.har/_index -rw-r--r-- 3 root supergroup 23 2020-03-17 23:21 /yinzhengjie/myFile.har/_masterindex -rw-r--r-- 3 root supergroup 11598 2020-03-17 23:21 /yinzhengjie/myFile.har/part-0 [root@hadoop101.yinzhengjie.org.cn ~]#
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yinzhengjie/myFile.har Found 4 items -rw-r--r-- 3 root supergroup 0 2020-03-17 23:21 /yinzhengjie/myFile.har/_SUCCESS -rw-r--r-- 3 root supergroup 726 2020-03-17 23:21 /yinzhengjie/myFile.har/_index -rw-r--r-- 3 root supergroup 23 2020-03-17 23:21 /yinzhengjie/myFile.har/_masterindex -rw-r--r-- 3 root supergroup 11598 2020-03-17 23:21 /yinzhengjie/myFile.har/part-0 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls har:///yinzhengjie/myFile.har Found 7 items -rw-r--r-- 3 root supergroup 1664 2020-03-17 23:20 har:///yinzhengjie/myFile.har/CentOS-Base.repo -rw-r--r-- 3 root supergroup 1309 2020-03-17 23:20 har:///yinzhengjie/myFile.har/CentOS-CR.repo -rw-r--r-- 3 root supergroup 649 2020-03-17 23:20 har:///yinzhengjie/myFile.har/CentOS-Debuginfo.repo -rw-r--r-- 3 root supergroup 630 2020-03-17 23:20 har:///yinzhengjie/myFile.har/CentOS-Media.repo -rw-r--r-- 3 root supergroup 1331 2020-03-17 23:20 har:///yinzhengjie/myFile.har/CentOS-Sources.repo -rw-r--r-- 3 root supergroup 5701 2020-03-17 23:20 har:///yinzhengjie/myFile.har/CentOS-Vault.repo -rw-r--r-- 3 root supergroup 314 2020-03-17 23:20 har:///yinzhengjie/myFile.har/CentOS-fasttrack.repo [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
3>.解压归档文件
[root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yinzhengjie/ Found 2 items drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie/jobhistory drwxr-xr-x - root supergroup 0 2020-03-17 23:21 /yinzhengjie/myFile.har [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yinzhengjie/myFile.har Found 4 items -rw-r--r-- 3 root supergroup 0 2020-03-17 23:21 /yinzhengjie/myFile.har/_SUCCESS -rw-r--r-- 3 root supergroup 726 2020-03-17 23:21 /yinzhengjie/myFile.har/_index -rw-r--r-- 3 root supergroup 23 2020-03-17 23:21 /yinzhengjie/myFile.har/_masterindex -rw-r--r-- 3 root supergroup 11598 2020-03-17 23:21 /yinzhengjie/myFile.har/part-0 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hadoop fs -cp har:///yinzhengjie/myFile.har/* /yinzhengjie/ [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yinzhengjie/ Found 9 items -rw-r--r-- 3 root supergroup 1664 2020-03-17 23:28 /yinzhengjie/CentOS-Base.repo -rw-r--r-- 3 root supergroup 1309 2020-03-17 23:28 /yinzhengjie/CentOS-CR.repo -rw-r--r-- 3 root supergroup 649 2020-03-17 23:28 /yinzhengjie/CentOS-Debuginfo.repo -rw-r--r-- 3 root supergroup 630 2020-03-17 23:28 /yinzhengjie/CentOS-Media.repo -rw-r--r-- 3 root supergroup 1331 2020-03-17 23:28 /yinzhengjie/CentOS-Sources.repo -rw-r--r-- 3 root supergroup 5701 2020-03-17 23:28 /yinzhengjie/CentOS-Vault.repo -rw-r--r-- 3 root supergroup 314 2020-03-17 23:28 /yinzhengjie/CentOS-fasttrack.repo drwxrwx--- - root supergroup 0 2020-03-12 16:51 /yinzhengjie/jobhistory drwxr-xr-x - root supergroup 0 2020-03-17 23:21 /yinzhengjie/myFile.har [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]# hdfs dfs -ls /yinzhengjie/myFile.har Found 4 items -rw-r--r-- 3 root supergroup 0 2020-03-17 23:21 /yinzhengjie/myFile.har/_SUCCESS -rw-r--r-- 3 root supergroup 726 2020-03-17 23:21 /yinzhengjie/myFile.har/_index -rw-r--r-- 3 root supergroup 23 2020-03-17 23:21 /yinzhengjie/myFile.har/_masterindex -rw-r--r-- 3 root supergroup 11598 2020-03-17 23:21 /yinzhengjie/myFile.har/part-0 [root@hadoop101.yinzhengjie.org.cn ~]# [root@hadoop101.yinzhengjie.org.cn ~]#
