CentOS 7.4下Hadoop 2.7.6安装部署

星哥玩云

发布于 2022-07-13 15:28:28

4440

发布于 2022-07-13 15:28:28

文章被收录于专栏：开源部署

1. 主机规划

主机名称	外网IP	内网IP	操作系统	备注	安装软件
mini01	10.0.0.11	172.16.1.11	CentOS 7.4	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，保证每台都可以相互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. 添加用户账号

# 使用一个专门的用户，避免直接使用root用户 # 添加用户、指定家目录并指定用户密码 useradd -d /app yun && echo '123456' | /usr/bin/passwd --stdin yun # sudo提权 echo "yun ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers # 让其它普通用户可以进入该目录查看信息 chmod 755 /app/

3. 实现yun用户免秘钥登录

要求：根据规划实现 mini01 到 mini01、mini02、mini03、mini04、mini05 免秘钥登录实现 mini02 到 mini01、mini02、mini03、mini04、mini05 免秘钥登录 # 可以使用ip也可以是hostname 但是由于我们计划使用的是 hostname 方式交互，所以使用hostname # 同时hostname方式分发，可以通过hostname远程登录，也可以IP远程登录

3.1. 创建密钥

# 实现 mini01 到 mini02、mini03、mini04、mini05 免秘钥登录 [yun@mini01 ~]$ ssh-keygen -t rsa # 一路回车即可 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]-----+ # 生成之后会在用户的根目录生成一个 “.ssh”的文件夹 [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. 分发密钥

# 可以使用ip也可以是hostname 但是由于我们使用的是 hostname 方式通信，所以使用hostname [yun@mini01 ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub 172.16.1.11 # IP方式【这里不用】 # 分发 [yun@mini01 ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub mini03 # 主机名方式【所有的都这样从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分发密钥

[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分发密钥

[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

远程登录测试【最好都测试一下】

[yun@mini02 ~]$ ssh mini05 Last login: Sat Jun 9 19:47:43 2018 from 10.0.0.11 Welcome You Login [yun@mini05 ~]$ # 表示远程登录成功

3.3. 远程免密登录原理图

3.4. .ssh目录中的文件说明

[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:存放远程免密登录的公钥,主要通过这个文件记录多台机器的公钥

　　id_rsa : 生成的私钥文件

　　id_rsa.pub ：生成的公钥文件

know_hosts : 已知的主机公钥清单

4. Jdk【java8】

4.1. 软件安装

[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. 环境变量

[root@mini01 ~]$ pwd

/app

[root@mini01 ~]$ ll -d jdk* # 可以根据实际情况选择jdk版本，其中jdk1.8 可以兼容 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环境变量

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)

5.1. 环境变量

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

5.2. core-site.xml

[yun@mini01 hadoop] pwd/app/hadoop/etc/hadoop[yun@mini01 hadoop] vim core-site.xml <?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="https://www.linuxidc.com/Linux/2018-08/configuration.xsl"?>……………………

<configuration>  <property> <name>fs.defaultFS</name> <value>hdfs://mini01:9000</value>  </property> <property> <name>hadoop.tmp.dir</name> <value>/app/hadoop/tmp</value> </property>

<property> <name>fs.trash.interval </name> <value>1440</value> </property>

</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="https://www.linuxidc.com/Linux/2018-08/configuration.xsl"?> ………………  <configuration>  <property> <name>dfs.replication</name> <value>3</value> </property> <property>   <name>dfs.namenode.secondary.http-address</name> <value>mini01:50090</value> </property>    </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="https://www.linuxidc.com/Linux/2018-08/configuration.xsl"?> ………………  <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>   <property> <name>yarn.resourcemanager.hostname</name> <value>mini02</value>  </property>  <property> <name>yarn.nodemanager.aux-services</name> <value>mapreduce_shuffle</value> </property> </configuration>

5.6. slaves

# 该配置和Hadoop服务无关，只是用于Hadoop脚本的批量使用 [yun@mini01 hadoop]$ pwd /app/hadoop/etc/hadoop [yun@mini01 hadoop]$ cat slaves mini03 mini04 mini05

5.7. 格式化namenode （是对namenode进行初始化）

[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 # 该目录之前是没有的 [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. 启动namenode

# 在mini01上启动 [yun@mini01 sbin]$ pwd /app/hadoop/sbin [yun@mini01 sbin]$ ./hadoop-daemon.sh start namenode # 停止使用： 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. 浏览器访问

http://10.0.0.11:50070

5.9. 启动datanode

# mini03、mini04、mini05 启动datanode

# 由于添加环境变量，所以可以在任何目录启动

[yun@mini02 ~]$ hadoop-daemon.sh start datanode # 停止使用： 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. 刷新浏览器

5.10. 使用脚本批量启动hdf # 根据规划在mini01启动 [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. 使用脚本批量启动yarn

# 根据规划在mini02启动 # 启动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. 最后结果

##### mini01

[yun@mini01 hadoop]$ jps

16336 NameNode

16548 SecondaryNameNode

16686 Jps

##### mini02

[yun@mini02 hadoop]$ jps

10936 ResourceManager

11213 Jps

##### mini03