Hadoop2.7.6_01_部署

時間 2020-07-09

原文原文鏈接

1. 主機規劃

主機名稱html	外網IPjava	內網IPnode	操做系統apache	備註vim	安裝軟件windows
mini01瀏覽器	10.0.0.11bash	172.16.1.11網絡	CentOS 7.4app	ssh port:22	Hadoop 【NameNode SecondaryNameNode】
mini02	10.0.0.12	172.16.1.12	CentOS 7.4	ssh port:22	Hadoop 【ResourceManager】
mini03	10.0.0.13	172.16.1.13	CentOS 7.4	ssh port:22	Hadoop 【DataNode NodeManager】
mini04	10.0.0.14	172.16.1.14	CentOS 7.4	ssh port:22	Hadoop 【DataNode NodeManager】
mini05	10.0.0.15	172.16.1.15	CentOS 7.4	ssh port:22	Hadoop 【DataNode NodeManager】

添加hosts信息，保證每臺均可以相互ping通

[root@mini01 ~]# cat /etc/hosts  
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

10.0.0.11    mini01
10.0.0.12    mini02
10.0.0.13    mini03
10.0.0.14    mini04
10.0.0.15    mini05

2. 添加用戶帳號

# 使用一個專門的用戶，避免直接使用root用戶
# 添加用戶、指定家目錄並指定用戶密碼
useradd -d /app yun && echo '123456' | /usr/bin/passwd --stdin yun
# sudo提權
echo "yun  ALL=(ALL)       NOPASSWD: ALL" >>  /etc/sudoers
# 讓其它普通用戶能夠進入該目錄查看信息
chmod 755 /app/

3. 實現yun用戶免祕鑰登陸

要求：根據規劃實現 mini01 到 mini0一、mini0二、mini0三、mini0四、mini05 免祕鑰登陸
              實現 mini02 到 mini0一、mini0二、mini0三、mini0四、mini05 免祕鑰登陸
# 能夠使用ip也能夠是hostname  可是因爲咱們計劃使用的是 hostname 方式交互，因此使用hostname 
# 同時hostname方式分發，能夠經過hostname遠程登陸，也能夠IP遠程登陸

3.1. 建立密鑰

# 實現 mini01 到 mini0二、mini0三、mini0四、mini05 免祕鑰登陸 
[yun@mini01 ~]$ ssh-keygen -t rsa  # 一路回車便可 
Generating public/private rsa key pair.
Enter file in which to save the key (/app/.ssh/id_rsa): 
Created directory '/app/.ssh'.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /app/.ssh/id_rsa.
Your public key has been saved in /app/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:rAFSIyG6Ft6qgGdVl/7v79DJmD7kIDSTcbiLtdKyTQk yun@mini01
The key's randomart image is:
+---[RSA 2048]----+
|. o.o    .       |
|.. o .  o..      |
|... . . o=       |
|..o. oE+B        |
|.o .. .*S*       |
|o ..  +oB.. .= . |
|o.o   .* ..++ +  |
|oo    . .  oo.   |
|.          .++o  |
+----[SHA256]-----+

# 生成以後會在用戶的根目錄生成一個 「.ssh」的文件夾 
[yun@mini01 ~]$ ll -d .ssh/
drwx------ 2 yun yun 38 Jun  9 19:17 .ssh/
[yun@mini01 ~]$ ll .ssh/
total 8
-rw------- 1 yun yun 1679 Jun  9 19:17 id_rsa
-rw-r--r-- 1 yun yun  392 Jun  9 19:17 id_rsa.pub

3.2. 分發密鑰

# 能夠使用ip也能夠是hostname  可是因爲咱們使用的是 hostname 方式通訊，因此使用hostname 
[yun@mini01 ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub 172.16.1.11   # IP方式【這裏不用】 
# 分發
[yun@mini01 ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub mini03   # 主機名方式【全部的都這樣 從mini01到mini05】 
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/app/.ssh/id_rsa.pub"
The authenticity of host '[mini03]:22 ([10.0.0.13]:22)' can't be established.
ECDSA key fingerprint is SHA256:pN2NUkgCTt+b9P5TfQZcTh4PF4h7iUxAs6+V7Slp1YI.
ECDSA key fingerprint is MD5:8c:f0:c7:d6:7c:b1:a8:59:1c:c1:5e:d7:52:cb:5f:51.
Are you sure you want to continue connecting (yes/no)? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
yun@mini03's password: 

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh -p '22' 'mini03'"
and check to make sure that only the key(s) you wanted were added.

mini01分發密鑰

[yun@mini01 .ssh]$ ssh-copy-id -i ~/.ssh/id_rsa.pub mini01 
[yun@mini01 .ssh]$ ssh-copy-id -i ~/.ssh/id_rsa.pub mini02 
[yun@mini01 .ssh]$ ssh-copy-id -i ~/.ssh/id_rsa.pub mini03 
[yun@mini01 .ssh]$ ssh-copy-id -i ~/.ssh/id_rsa.pub mini04 
[yun@mini01 .ssh]$ ssh-copy-id -i ~/.ssh/id_rsa.pub mini05

mini02分發密鑰

[yun@mini02 .ssh]$ ssh-copy-id -i ~/.ssh/id_rsa.pub mini01 
[yun@mini02 .ssh]$ ssh-copy-id -i ~/.ssh/id_rsa.pub mini02 
[yun@mini02 .ssh]$ ssh-copy-id -i ~/.ssh/id_rsa.pub mini03 
[yun@mini02 .ssh]$ ssh-copy-id -i ~/.ssh/id_rsa.pub mini04 
[yun@mini02 .ssh]$ ssh-copy-id -i ~/.ssh/id_rsa.pub mini05

遠程登陸測試【最好都測試一下】

[yun@mini02 ~]$ ssh mini05 
Last login: Sat Jun  9 19:47:43 2018 from 10.0.0.11

Welcome You Login

[yun@mini05 ~]$             # 表示遠程登陸成功

3.3. 遠程免密登陸原理圖

3.4. .ssh目錄中的文件說明

[yun@mini01 .ssh]$ pwd
/app/.ssh
[yun@mini01 .ssh]$ ll
total 16
-rw------- 1 yun yun  784 Jun  9 19:43 authorized_keys
-rw------- 1 yun yun 1679 Jun  9 19:17 id_rsa
-rw-r--r-- 1 yun yun  392 Jun  9 19:17 id_rsa.pub
-rw-r--r-- 1 yun yun 1332 Jun  9 19:41 known_hosts
########################################################################################
　　authorized_keys:存放遠程免密登陸的公鑰,主要經過這個文件記錄多臺機器的公鑰
　　id_rsa : 生成的私鑰文件
　　id_rsa.pub ： 生成的公鑰文件
know_hosts : 已知的主機公鑰清單

4. Jdk【java8】

4.1. 軟件安裝

[yun@mini01 software]# pwd
/app/software
[yun@mini01 software]# tar xf jdk1.8.0_112.tar.gz 
[yun@mini01 software]# ll
total 201392
drwxr-xr-x 8   10  143      4096 Dec 20 13:27 jdk1.8.0_112
-rw-r--r-- 1 root root 189815615 Mar 12 16:47 jdk1.8.0_112.tar.gz
[yun@mini01 software]# mv jdk1.8.0_112/ /app/
[yun@mini01 software]# cd /app/
[yun@mini01 app]# ll
total 8
drwxr-xr-x  8   10   143 4096 Dec 20 13:27 jdk1.8.0_112
[yun@mini01 app]# ln -s jdk1.8.0_112/ jdk
[yun@mini01 app]# ll
total 8
lrwxrwxrwx  1 root root    13 May 16 23:19 jdk -> jdk1.8.0_112/
drwxr-xr-x  8   10   143 4096 Dec 20 13:27 jdk1.8.0_112

4.2. 環境變量

[root@mini01 ~]$ pwd
/app
[root@mini01 ~]$ ll -d jdk*  # 能夠根據實際狀況選擇jdk版本，其中jdk1.8 能夠兼容 jdk1.7   
lrwxrwxrwx 1 yun yun   11 Mar 15 14:58 jdk -> jdk1.8.0_112
drwxr-xr-x 8 yun yun 4096 Dec 20 13:27 jdk1.8.0_112
[root@mini01 profile.d]$ pwd
/etc/profile.d
[root@mini01 profile.d]$ cat jdk.sh # java環境變量   
export JAVA_HOME=/app/jdk
export JRE_HOME=/app/jdk/jre
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib:$CLASSPATH
export PATH=$JAVA_HOME/bin:$PATH

[root@mini01 profile.d]# source /etc/profile
[root@mini01 profile.d]$ java -version  
java version "1.8.0_112"
Java(TM) SE Runtime Environment (build 1.8.0_112-b15)
Java HotSpot(TM) 64-Bit Server VM (build 25.112-b15, mixed mode)

5. Hadoop配置修改並啓動【全部機器配置文件同樣】

[yun@mini01 software]$ pwd
/app/software
[yun@mini01 software]$ ll
total 194152
-rw-r--r-- 1 yun yun 198811365 Jun  8 16:36 CentOS-7.4_hadoop-2.7.6.tar.gz
[yun@mini01 software]$ tar xf CentOS-7.4_hadoop-2.7.6.tar.gz
[yun@mini01 software]$ mv hadoop-2.7.6/ /app/
[yun@mini01 software]$ cd
[yun@mini01 ~]$ ln -s hadoop-2.7.6/ hadoop
[yun@mini01 ~]$ ll
total 4
lrwxrwxrwx  1 yun yun   13 Jun  9 16:21 hadoop -> hadoop-2.7.6/
drwxr-xr-x  9 yun yun  149 Jun  8 16:36 hadoop-2.7.6
lrwxrwxrwx  1 yun yun   12 May 26 11:18 jdk -> jdk1.8.0_112
drwxr-xr-x  8 yun yun  255 Sep 23  2016 jdk1.8.0_112

5.1. 環境變量

[root@mini01 profile.d]# pwd
/etc/profile.d
[root@mini01 profile.d]# vim hadoop.sh  
export HADOOP_HOME="/app/hadoop"
export PATH=$HADOOP_HOME/bin:$HADOOP_HOME/sbin:$PATH

[root@mini01 profile.d]# source /etc/profile  # 生效

5.2. core-site.xml

 1 [yun@mini01 hadoop]$ pwd
 2 /app/hadoop/etc/hadoop
 3 [yun@mini01 hadoop]$ vim core-site.xml 
 4 <?xml version="1.0" encoding="UTF-8"?>
 5 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
 6 ……………………
 7 <!-- Put site-specific property overrides in this file. -->
 8 
 9 <configuration>
10   <!-- 指定HADOOP所使用的文件系統schema（URI），HDFS的老大（NameNode）的地址 -->
11   <property>
12     <name>fs.defaultFS</name>
13     <value>hdfs://mini01:9000</value>  <!-- mini01 是hostname信息 -->
14   </property>
15   <property>
16     <name>hadoop.tmp.dir</name>
17     <value>/app/hadoop/tmp</value>
18   </property>
19 
20   <!-- 啓用垃圾箱功能，單位分鐘 -->
21   <property>
22     <name>fs.trash.interval </name>
23     <value>1440</value>
24   </property>
25 
26 </configuration>

5.3. hdfs-site.xml

[yun@mini01 hadoop]$ pwd
/app/hadoop/etc/hadoop
[yun@mini01 hadoop]$ vim hdfs-site.xml 
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
………………
<!-- Put site-specific property overrides in this file. -->

<configuration>
  <!-- 指定HDFS副本的數量 -->
  <property>
    <name>dfs.replication</name>
    <value>3</value>
  </property>

  <property>
    <!-- 兩個name標籤均可以。週期性的合併fsimage和edits log文件而且使edits log保持在必定範圍內。最好和namenode不在一臺機器,由於所需內存和namenode同樣 -->
    <!-- <name>dfs.secondary.http.address</name> -->
    <name>dfs.namenode.secondary.http-address</name>
    <value>mini01:50090</value>
  </property>

  <!-- dfs namenode 的目錄，能夠有多個目錄，而後每一個目錄掛不一樣的磁盤,每一個目錄下的文件信息是同樣的，至關於備份 -->
  <!-- 若有須要，放開註釋便可
  <property>
    <name>dfs.namenode.name.dir</name>
    <value> file://${hadoop.tmp.dir}/dfs/name,file://${hadoop.tmp.dir}/dfs/name1,file://${hadoop.tmp.dir}/dfs/name2</value>
  </property>
  -->

  <!-- 也能夠配置dfs.datanode.data.dir  配置爲多個目錄，至關於擴容 -->

</configuration>

5.4. mapred-site.xml

[yun@mini01 hadoop]$ pwd
/app/hadoop/etc/hadoop
[yun@mini01 hadoop]$ mv mapred-site.xml.template mapred-site.xml  
[yun@mini01 hadoop]$ vim mapred-site.xml 
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
………………
<!-- Put site-specific property overrides in this file. -->

<configuration>
  <property>
    <name>mapreduce.framework.name</name>
    <value>yarn</value>
  </property>

</configuration>

5.5. yarn-site.xml

[yun@mini01 hadoop]$ pwd
/app/hadoop/etc/hadoop
[yun@mini01 hadoop]$ vim yarn-site.xml 
<?xml version="1.0"?>
……………………
<configuration>

<!-- Site specific YARN configuration properties -->
  <!-- 指定YARN的老大（ResourceManager）的地址 -->
  <property>
    <name>yarn.resourcemanager.hostname</name>
    <value>mini02</value>  <!-- 根據規劃 mini02 爲ResourceManager -->
  </property>
 
  <!-- reducer獲取數據的方式 -->
  <property>
    <name>yarn.nodemanager.aux-services</name>
    <value>mapreduce_shuffle</value>
  </property>

</configuration>

5.6. slaves

# 該配置和Hadoop服務無關，只是用於Hadoop腳本的批量使用
[yun@mini01 hadoop]$ pwd
/app/hadoop/etc/hadoop
[yun@mini01 hadoop]$ cat slaves 
mini03
mini04
mini05

5.7. 格式化namenode

（是對namenode進行初始化）

[yun@mini01 hadoop]$ hdfs namenode -format   
18/06/09 17:44:56 INFO namenode.NameNode: STARTUP_MSG: 
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG:   host = mini01/10.0.0.11
STARTUP_MSG:   args = [-format]
STARTUP_MSG:   version = 2.7.6
………………
STARTUP_MSG:   java = 1.8.0_112
************************************************************/
18/06/09 17:44:56 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]
18/06/09 17:44:56 INFO namenode.NameNode: createNameNode [-format]
Formatting using clusterid: CID-72e356f5-7723-4960-885a-72e522e19be1
18/06/09 17:44:57 INFO namenode.FSNamesystem: No KeyProvider found.
18/06/09 17:44:57 INFO namenode.FSNamesystem: fsLock is fair: true
18/06/09 17:44:57 INFO namenode.FSNamesystem: Detailed lock hold time metrics enabled: false
18/06/09 17:44:57 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit=1000
18/06/09 17:44:57 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true
18/06/09 17:44:57 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000
18/06/09 17:44:57 INFO blockmanagement.BlockManager: The block deletion will start around 2018 Jun 09 17:44:57
18/06/09 17:44:57 INFO util.GSet: Computing capacity for map BlocksMap
18/06/09 17:44:57 INFO util.GSet: VM type       = 64-bit
18/06/09 17:44:57 INFO util.GSet: 2.0% max memory 889 MB = 17.8 MB
18/06/09 17:44:57 INFO util.GSet: capacity      = 2^21 = 2097152 entries
18/06/09 17:44:57 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false
18/06/09 17:44:57 INFO blockmanagement.BlockManager: defaultReplication         = 3
18/06/09 17:44:57 INFO blockmanagement.BlockManager: maxReplication             = 512
18/06/09 17:44:57 INFO blockmanagement.BlockManager: minReplication             = 1
18/06/09 17:44:57 INFO blockmanagement.BlockManager: maxReplicationStreams      = 2
18/06/09 17:44:57 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000
18/06/09 17:44:57 INFO blockmanagement.BlockManager: encryptDataTransfer        = false
18/06/09 17:44:57 INFO blockmanagement.BlockManager: maxNumBlocksToLog          = 1000
18/06/09 17:44:57 INFO namenode.FSNamesystem: fsOwner             = yun (auth:SIMPLE)
18/06/09 17:44:57 INFO namenode.FSNamesystem: supergroup          = supergroup
18/06/09 17:44:57 INFO namenode.FSNamesystem: isPermissionEnabled = true
18/06/09 17:44:57 INFO namenode.FSNamesystem: HA Enabled: false
18/06/09 17:44:57 INFO namenode.FSNamesystem: Append Enabled: true
18/06/09 17:44:58 INFO util.GSet: Computing capacity for map INodeMap
18/06/09 17:44:58 INFO util.GSet: VM type       = 64-bit
18/06/09 17:44:58 INFO util.GSet: 1.0% max memory 889 MB = 8.9 MB
18/06/09 17:44:58 INFO util.GSet: capacity      = 2^20 = 1048576 entries
18/06/09 17:44:58 INFO namenode.FSDirectory: ACLs enabled? false
18/06/09 17:44:58 INFO namenode.FSDirectory: XAttrs enabled? true
18/06/09 17:44:58 INFO namenode.FSDirectory: Maximum size of an xattr: 16384
18/06/09 17:44:58 INFO namenode.NameNode: Caching file names occuring more than 10 times
18/06/09 17:44:58 INFO util.GSet: Computing capacity for map cachedBlocks
18/06/09 17:44:58 INFO util.GSet: VM type       = 64-bit
18/06/09 17:44:58 INFO util.GSet: 0.25% max memory 889 MB = 2.2 MB
18/06/09 17:44:58 INFO util.GSet: capacity      = 2^18 = 262144 entries
18/06/09 17:44:58 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033
18/06/09 17:44:58 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0
18/06/09 17:44:58 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension     = 30000
18/06/09 17:44:58 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.window.num.buckets = 10
18/06/09 17:44:58 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.num.users = 10
18/06/09 17:44:58 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.windows.minutes = 1,5,25
18/06/09 17:44:58 INFO namenode.FSNamesystem: Retry cache on namenode is enabled
18/06/09 17:44:58 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis
18/06/09 17:44:58 INFO util.GSet: Computing capacity for map NameNodeRetryCache
18/06/09 17:44:58 INFO util.GSet: VM type       = 64-bit
18/06/09 17:44:58 INFO util.GSet: 0.029999999329447746% max memory 889 MB = 273.1 KB
18/06/09 17:44:58 INFO util.GSet: capacity      = 2^15 = 32768 entries
18/06/09 17:44:58 INFO namenode.FSImage: Allocated new BlockPoolId: BP-925531343-10.0.0.11-1528537498201
18/06/09 17:44:58 INFO common.Storage: Storage directory /app/hadoop/tmp/dfs/name has been successfully formatted.
18/06/09 17:44:58 INFO namenode.FSImageFormatProtobuf: Saving image file /app/hadoop/tmp/dfs/name/current/fsimage.ckpt_0000000000000000000 using no compression
18/06/09 17:44:58 INFO namenode.FSImageFormatProtobuf: Image file /app/hadoop/tmp/dfs/name/current/fsimage.ckpt_0000000000000000000 of size 319 bytes saved in 0 seconds.
18/06/09 17:44:58 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
18/06/09 17:44:58 INFO util.ExitUtil: Exiting with status 0
18/06/09 17:44:58 INFO namenode.NameNode: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at mini01/10.0.0.11
************************************************************/
[yun@mini01 hadoop]$ pwd
/app/hadoop
[yun@mini01 hadoop]$ ll
total 112
drwxr-xr-x 2 yun yun   194 Jun  8 16:36 bin
drwxr-xr-x 3 yun yun    20 Jun  8 16:36 etc
drwxr-xr-x 2 yun yun   106 Jun  8 16:36 include
drwxr-xr-x 3 yun yun    20 Jun  8 16:36 lib
drwxr-xr-x 2 yun yun   239 Jun  8 16:36 libexec
-rw-r--r-- 1 yun yun 86424 Jun  8 16:36 LICENSE.txt
-rw-r--r-- 1 yun yun 14978 Jun  8 16:36 NOTICE.txt
-rw-r--r-- 1 yun yun  1366 Jun  8 16:36 README.txt
drwxr-xr-x 2 yun yun  4096 Jun  8 16:36 sbin
drwxr-xr-x 4 yun yun    31 Jun  8 16:36 share
drwxrwxr-x 3 yun yun    17 Jun  9 17:44 tmp   # 該目錄以前是沒有的
[yun@mini01 hadoop]$ ll tmp/
total 0
drwxrwxr-x 3 yun yun 18 Jun  9 17:44 dfs
[yun@mini01 hadoop]$ ll tmp/dfs/
total 0
drwxrwxr-x 3 yun yun 21 Jun  9 17:44 name
[yun@mini01 hadoop]$ ll tmp/dfs/name/
total 0
drwxrwxr-x 2 yun yun 112 Jun  9 17:44 current
[yun@mini01 hadoop]$ ll tmp/dfs/name/current/
total 16
-rw-rw-r-- 1 yun yun 319 Jun  9 17:44 fsimage_0000000000000000000
-rw-rw-r-- 1 yun yun  62 Jun  9 17:44 fsimage_0000000000000000000.md5
-rw-rw-r-- 1 yun yun   2 Jun  9 17:44 seen_txid
-rw-rw-r-- 1 yun yun 199 Jun  9 17:44 VERSION

5.8. 啓動namenode

# 在mini01上啓動 
[yun@mini01 sbin]$ pwd
/app/hadoop/sbin
[yun@mini01 sbin]$ ./hadoop-daemon.sh start namenode  # 中止使用： hadoop-daemon.sh stop namenode 
starting namenode, logging to /app/hadoop-2.7.6/logs/hadoop-yun-namenode-mini01.out
[yun@mini01 sbin]$ jps 
6066 Jps
5983 NameNode
[yun@mini01 sbin]$ ps -ef | grep 'hadoop' 
yun        5983      1  6 17:55 pts/0    00:00:07 /app/jdk/bin/java -Dproc_namenode -Xmx1000m -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/app/hadoop-2.7.6/logs -Dhadoop.log.file=hadoop.log -Dhadoop.home.dir=/app/hadoop-2.7.6 -Dhadoop.id.str=yun -Dhadoop.root.logger=INFO,console -Djava.library.path=/app/hadoop-2.7.6/lib/native -Dhadoop.policy.file=hadoop-policy.xml -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/app/hadoop-2.7.6/logs -Dhadoop.log.file=hadoop-yun-namenode-mini01.log -Dhadoop.home.dir=/app/hadoop-2.7.6 -Dhadoop.id.str=yun -Dhadoop.root.logger=INFO,RFA -Djava.library.path=/app/hadoop-2.7.6/lib/native -Dhadoop.policy.file=hadoop-policy.xml -Djava.net.preferIPv4Stack=true -Dhadoop.security.logger=INFO,RFAS -Dhdfs.audit.logger=INFO,NullAppender -Dhadoop.security.logger=INFO,RFAS -Dhdfs.audit.logger=INFO,NullAppender -Dhadoop.security.logger=INFO,RFAS -Dhdfs.audit.logger=INFO,NullAppender -Dhadoop.security.logger=INFO,RFAS org.apache.hadoop.hdfs.server.namenode.NameNode
yun        6160   2337  0 17:57 pts/0    00:00:00 grep --color=auto hadoop
[yun@mini01 sbin]$ netstat -lntup | grep '5983'  
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
tcp        0      0 0.0.0.0:50070           0.0.0.0:*               LISTEN      5983/java           
tcp        0      0 10.0.0.11:9000          0.0.0.0:*               LISTEN      5983/java

5.8.1. 瀏覽器訪問

http://10.0.0.11:50070

5.9. 啓動datanode

# mini0三、mini0四、mini05 啓動datanode 
# 因爲添加環境變量，因此能夠在任何目錄啓動 
[yun@mini02 ~]$ hadoop-daemon.sh start datanode  # 中止使用： hadoop-daemon.sh stop datanode
starting datanode, logging to /app/hadoop-2.7.6/logs/hadoop-yun-datanode-mini02.out
[yun@mini02 ~]$ jps 
5349 Jps
5263 DataNode

5.9.1. 刷新瀏覽器

5.10. 使用腳本批量啓動hdf

# 根據規劃在mini01啓動 
[yun@mini01 hadoop]$ start-dfs.sh 
Starting namenodes on [mini01]
mini01: starting namenode, logging to /app/hadoop-2.7.6/logs/hadoop-yun-namenode-mini01.out
mini04: starting datanode, logging to /app/hadoop-2.7.6/logs/hadoop-yun-datanode-mini04.out
mini03: starting datanode, logging to /app/hadoop-2.7.6/logs/hadoop-yun-datanode-mini03.out
mini05: starting datanode, logging to /app/hadoop-2.7.6/logs/hadoop-yun-datanode-mini05.out
Starting secondary namenodes [mini01]
mini01: starting secondarynamenode, logging to /app/hadoop-2.7.6/logs/hadoop-yun-secondarynamenode-mini01.out

URL地址：（HDFS管理界面）

http://10.0.0.11:50070

5.11. 使用腳本批量啓動yarn

# 根據規劃在mini02啓動
# 啓動yarn 
[yun@mini02 hadoop]$ start-yarn.sh 
starting yarn daemons
starting resourcemanager, logging to /app/hadoop-2.7.6/logs/yarn-yun-resourcemanager-mini02.out
mini05: starting nodemanager, logging to /app/hadoop-2.7.6/logs/yarn-yun-nodemanager-mini05.out
mini04: starting nodemanager, logging to /app/hadoop-2.7.6/logs/yarn-yun-nodemanager-mini04.out
mini03: starting nodemanager, logging to /app/hadoop-2.7.6/logs/yarn-yun-nodemanager-mini03.out

URL地址：（MR管理界面）

http://10.0.0.12:8088

5.12. 最後結果

##### mini01
[yun@mini01 hadoop]$ jps 
16336 NameNode
16548 SecondaryNameNode
16686 Jps

##### mini02
[yun@mini02 hadoop]$ jps 
10936 ResourceManager
11213 Jps

##### mini03
[yun@mini03 ~]$ jps 
9212 Jps
8957 DataNode
9039 NodeManager

##### mini04
[yun@mini04 ~]$ jps
4130 NodeManager
4296 Jps
4047 DataNode

##### mini05
[yun@mini05 ~]$ jps
7011 DataNode
7091 NodeManager
7308 Jps