hadoop的目录结构介绍
解压缩hadoop
利用tar –zxvf把hadoop的jar包放到指定的目录下。
tar -zxvf /home/software/aa.tar.gz -C /home/zjx/pf
f:指定文件的名称
z:以gz结尾的文件就是用gzip压缩的结果。与gzip相对的就是gunzip，这个参数的作用就是用来调用gzip。
X:为解开的意思
Z:详细报告处理文件的信息
目录结构总图
[root@localhost hadoop-2.6.0]# ll
total 52
drwxr-xr-x. 2 20000 20000 4096 Nov 13 13:20 bin
drwxr-xr-x. 3 20000 20000 4096 Nov 13 13:20 etc
drwxr-xr-x. 2 20000 20000 4096 Nov 13 13:20 include
drwxr-xr-x. 3 20000 20000 4096 Nov 13 13:20 lib
drwxr-xr-x. 2 20000 20000 4096 Nov 13 13:20 libexec
-rw-r--r--. 1 20000 20000 15429 Nov 13 13:20 LICENSE.txt
-rw-r--r--. 1 20000 20000 101 Nov 13 13:20 NOTICE.txt
-rw-r--r--. 1 20000 20000 1366 Nov 13 13:20 README.txt
drwxr-xr-x. 2 20000 20000 4096 Nov 13 13:20 sbin
drwxr-xr-x. 4 20000 20000 4096 Nov 13 13:20 share
bin目录结构
[root@localhost hadoop-2.6.0]# cd bin
[root@localhost bin]# ll
total 440
-rwxr-xr-x. 1 20000 20000 159183 Nov 13 13:20 container-executor
-rwxr-xr-x. 1 20000 20000 5479 Nov 13 13:20 hadoop
-rwxr-xr-x. 1 20000 20000 8298 Nov 13 13:20 hadoop.cmd
-rwxr-xr-x. 1 20000 20000 11142 Nov 13 13:20 hdfs
-rwxr-xr-x. 1 20000 20000 6923 Nov 13 13:20 hdfs.cmd
-rwxr-xr-x. 1 20000 20000 5205 Nov 13 13:20 mapred
-rwxr-xr-x. 1 20000 20000 5949 Nov 13 13:20 mapred.cmd
-rwxr-xr-x. 1 20000 20000 1776 Nov 13 13:20 rcc
-rwxr-xr-x. 1 20000 20000 201659 Nov 13 13:20 test-container-executor
-rwxr-xr-x. 1 20000 20000 11380 Nov 13 13:20 yarn
-rwxr-xr-x. 1 20000 20000 10895 Nov 13 13:20 yarn.cmd
文件存放了hadoop，hdfs，mapred的命令，从cmd可以看出支持windows。
sbin的目录结构
[root@localhost hadoop-2.6.0]# cd sbin
[root@localhost sbin]# ll
total 120
-rwxr-xr-x. 1 20000 20000 2752 Nov 13 13:20 distribute-exclude.sh
-rwxr-xr-x. 1 20000 20000 6452 Nov 13 13:20 hadoop-daemon.sh
-rwxr-xr-x. 1 20000 20000 1360 Nov 13 13:20 hadoop-daemons.sh
-rwxr-xr-x. 1 20000 20000 1640 Nov 13 13:20 hdfs-config.cmd
-rwxr-xr-x. 1 20000 20000 1427 Nov 13 13:20 hdfs-config.sh
-rwxr-xr-x. 1 20000 20000 2291 Nov 13 13:20 httpfs.sh
-rwxr-xr-x. 1 20000 20000 2059 Nov 13 13:20 kms.sh
-rwxr-xr-x. 1 20000 20000 4080 Nov 13 13:20 mr-jobhistory-daemon.sh
-rwxr-xr-x. 1 20000 20000 1648 Nov 13 13:20 refresh-namenodes.sh
-rwxr-xr-x. 1 20000 20000 2145 Nov 13 13:20 slaves.sh
-rwxr-xr-x. 1 20000 20000 1779 Nov 13 13:20 start-all.cmd
-rwxr-xr-x. 1 20000 20000 1471 Nov 13 13:20 start-all.sh
-rwxr-xr-x. 1 20000 20000 1128 Nov 13 13:20 start-balancer.sh
-rwxr-xr-x. 1 20000 20000 1401 Nov 13 13:20 start-dfs.cmd
-rwxr-xr-x. 1 20000 20000 3705 Nov 13 13:20 start-dfs.sh
-rwxr-xr-x. 1 20000 20000 1357 Nov 13 13:20 start-secure-dns.sh
-rwxr-xr-x. 1 20000 20000 1571 Nov 13 13:20 start-yarn.cmd
-rwxr-xr-x. 1 20000 20000 1347 Nov 13 13:20 start-yarn.sh
-rwxr-xr-x. 1 20000 20000 1770 Nov 13 13:20 stop-all.cmd
-rwxr-xr-x. 1 20000 20000 1462 Nov 13 13:20 stop-all.sh
-rwxr-xr-x. 1 20000 20000 1179 Nov 13 13:20 stop-balancer.sh
-rwxr-xr-x. 1 20000 20000 1455 Nov 13 13:20 stop-dfs.cmd
-rwxr-xr-x. 1 20000 20000 3206 Nov 13 13:20 stop-dfs.sh
-rwxr-xr-x. 1 20000 20000 1340 Nov 13 13:20 stop-secure-dns.sh
-rwxr-xr-x. 1 20000 20000 1642 Nov 13 13:20 stop-yarn.cmd
-rwxr-xr-x. 1 20000 20000 1340 Nov 13 13:20 stop-yarn.sh
-rwxr-xr-x. 1 20000 20000 4295 Nov 13 13:20 yarn-daemon.sh
-rwxr-xr-x. 1 20000 20000 1353 Nov 13 13:20 yarn-daemons.sh
各种启动和停止的命令。
Hadoop配置文件所在目录
[root@localhost hadoop]# ll
total 152
-rw-r--r--. 1 20000 20000 4436 Nov 13 13:20 capacity-scheduler.xml
-rw-r--r--. 1 20000 20000 1335 Nov 13 13:20 configuration.xsl
-rw-r--r--. 1 20000 20000 318 Nov 13 13:20 container-executor.cfg
-rw-r--r--. 1 20000 20000 774 Nov 13 13:20 core-site.xml
-rw-r--r--. 1 20000 20000 3670 Nov 13 13:20 hadoop-env.cmd
-rw-r--r--. 1 20000 20000 4224 Nov 13 13:20 hadoop-env.sh
-rw-r--r--. 1 20000 20000 2598 Nov 13 13:20 hadoop-metrics2.properties
-rw-r--r--. 1 20000 20000 2490 Nov 13 13:20 hadoop-metrics.properties
-rw-r--r--. 1 20000 20000 9683 Nov 13 13:20 hadoop-policy.xml
-rw-r--r--. 1 20000 20000 775 Nov 13 13:20 hdfs-site.xml
-rw-r--r--. 1 20000 20000 1449 Nov 13 13:20 httpfs-env.sh
-rw-r--r--. 1 20000 20000 1657 Nov 13 13:20 httpfs-log4j.properties
-rw-r--r--. 1 20000 20000 21 Nov 13 13:20 httpfs-signature.secret
-rw-r--r--. 1 20000 20000 620 Nov 13 13:20 httpfs-site.xml
-rw-r--r--. 1 20000 20000 3523 Nov 13 13:20 kms-acls.xml
-rw-r--r--. 1 20000 20000 1325 Nov 13 13:20 kms-env.sh
-rw-r--r--. 1 20000 20000 1631 Nov 13 13:20 kms-log4j.properties
-rw-r--r--. 1 20000 20000 5511 Nov 13 13:20 kms-site.xml
-rw-r--r--. 1 20000 20000 11291 Nov 13 13:20 log4j.properties
-rw-r--r--. 1 20000 20000 938 Nov 13 13:20 mapred-env.cmd
-rw-r--r--. 1 20000 20000 1383 Nov 13 13:20 mapred-env.sh
-rw-r--r--. 1 20000 20000 4113 Nov 13 13:20 mapred-queues.xml.template
-rw-r--r--. 1 20000 20000 758 Nov 13 13:20 mapred-site.xml.template
-rw-r--r--. 1 20000 20000 10 Nov 13 13:20 slaves
-rw-r--r--. 1 20000 20000 2316 Nov 13 13:20 ssl-client.xml.example
-rw-r--r--. 1 20000 20000 2268 Nov 13 13:20 ssl-server.xml.example
-rw-r--r--. 1 20000 20000 2237 Nov 13 13:20 yarn-env.cmd
-rw-r--r--. 1 20000 20000 4567 Nov 13 13:20 yarn-env.sh
-rw-r--r--. 1 20000 20000 690 Nov 13 13:20 yarn-site.xml
[root@localhost hadoop]# pwd
/home/app/hadoop-2.6.0/etc/Hadoop hadoop配置文件所在的路径
本地库路径
[root@localhost lib]# cd native/
[root@localhost native]# ll
total 4912
-rw-r--r--. 1 20000 20000 1380212 Nov 13 13:20 libhadoop.a
-rw-r--r--. 1 20000 20000 1634592 Nov 13 13:20 libhadooppipes.a
lrwxrwxrwx. 1 20000 20000 18 Feb 28 08:41 libhadoop.so -> libhadoop.so.1.0.0
-rwxr-xr-x. 1 20000 20000 805999 Nov 13 13:20 libhadoop.so.1.0.0
-rw-r--r--. 1 20000 20000 476666 Nov 13 13:20 libhadooputils.a
-rw-r--r--. 1 20000 20000 440498 Nov 13 13:20 libhdfs.a
lrwxrwxrwx. 1 20000 20000 16 Feb 28 08:41 libhdfs.so -> libhdfs.so.0.0.0
-rwxr-xr-x. 1 20000 20000 278622 Nov 13 13:20 libhdfs.so.0.0.0
[root@localhost native]# pwd
/home/app/hadoop-2.6.0/lib/native
Lib下的native为本地库，hadoop编译时需要的本地库，例如编译c++等。
jar包的目录
[root@localhost share]# cd hadoop/
[root@localhost hadoop]# ll
total 28
drwxr-xr-x. 6 20000 20000 4096 Nov 13 13:20 common
drwxr-xr-x. 7 20000 20000 4096 Nov 13 13:20 hdfs
drwxr-xr-x. 3 20000 20000 4096 Nov 13 13:20 httpfs
drwxr-xr-x. 3 20000 20000 4096 Nov 13 13:20 kms
drwxr-xr-x. 5 20000 20000 4096 Nov 13 13:20 mapreduce
drwxr-xr-x. 5 20000 20000 4096 Nov 13 13:20 tools
drwxr-xr-x. 5 20000 20000 4096 Nov 13 13:20 yarn
[root@localhost hadoop]# pwd
/home/app/hadoop-2.6.0/share/Hadoop
Hadoop的目录下有hdfs文件夹，该文件夹下面是支持hdfs运行的jar包
[root@localhost hadoop]# cd hdfs
[root@localhost hdfs]# ll
total 10716
-rw-r--r--. 1 20000 20000 7822669 Nov 13 13:20 hadoop-hdfs-2.6.0.jar
-rw-r--r--. 1 20000 20000 3029378 Nov 13 13:20 hadoop-hdfs-2.6.0-tests.jar
-rw-r--r--. 1 20000 20000 95211 Nov 13 13:20 hadoop-hdfs-nfs-2.6.0.jar
drwxr-xr-x. 2 20000 20000 4096 Nov 13 13:20 jdiff
drwxr-xr-x. 2 20000 20000 4096 Nov 13 13:20 lib
drwxr-xr-x. 2 20000 20000 4096 Nov 13 13:20 sources
drwxr-xr-x. 2 20000 20000 4096 Nov 13 13:20 templates
drwxr-xr-x. 7 20000 20000 4096 Nov 13 13:20 webapps