一. 基础环境
1、四台虚拟机的 IP 地址 及 主机名
172.20.2.68 master 172.20.2.134 slave1 172.20.2.250 slave2 172.20.2.110 slave3
2、HDFS角色分配：
| 节点Ip | 主机名 | HDFS角色 |
| 172.20.2.68 | master | datanode；namenode |
| 172.20.2.134 | slave1 | datanode； |
| 172.20.2.250 | slave2 | datanode；secondarynamenode |
| 172.20.2.110 | slave3 | datanode； |
3、YARN角色分配：
| 节点Ip | 主机名 | YARN角色 |
| 172.20.2.68 | master | nodemanager； |
| 172.20.2.134 | slave1 | nodemanager； |
| 172.20.2.250 | slave2 | nodemanager； |
| 172.20.2.110 | slave3 | nodemanager；resourcemanager |
二. 基础配置
1、关闭防火墙 [ 所有节点执行 ]
[root@master ~]# systemctl stop firewalld [root@master ~]# systemctl disable firewalld Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service. Removed symlink /etc/systemd/system/basic.target.wants/firewalld.service.
2、安装 JDK 及环境变量配置 [ 所有节点执行 ]
yum install java-1.8.0-openjdk.x86_64 java-1.8.0-openjdk-devel -y cat >/etc/profile.d/java.sh<<EOF export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.191.b12-1.el7_6.x86_64 export CLASSPATH=.:\$JAVA_HOME/jre/lib/rt.jar:\$JAVA_HOME/lib/dt.jar:\$JAVA_HOME/lib/tools.jar export PATH=\$PATH:\$JAVA_HOME/bin EOF
3、创建 hadoop 用户并设置密码 [ 所有节点执行 ]
[root@master ~]# useradd hadoop [root@master ~]# echo "password" | passwd hadoop --stdin Changing password for user hadoop. passwd: all authentication tokens updated successfully.
4、配置 hosts [ 所有节点执行 ]
[root@master ~]# cat /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 172.20.2.68 master 172.20.2.134 slave1 172.20.2.250 slave2 172.20.2.110 slave3
5、配置 SSH 免密登录 [ 所有节点执行 ]
[root@master ~]# su - hadoop [hadoop@master ~]$ ssh-keygen -t rsa Generating public/private rsa key pair. Enter file in which to save the key (/home/hadoop/.ssh/id_rsa): Created directory '/home/hadoop/.ssh'. Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home/hadoop/.ssh/id_rsa. Your public key has been saved in /home/hadoop/.ssh/id_rsa.pub. The key fingerprint is: 14:ea:1d:7b:61:3d:5b:42:52:dc:41:ad:39:e5:d1:a8 hadoop@master The key's randomart image is: +--[ RSA 2048]----+ | . .oooo+.| | . . +. o.+| | . o o +..=.| | . o + .E=+ .| | . S . . . | | . | | | | | | | +-----------------+
[hadoop@master ~]$ ssh-copy-id 172.20.2.68 [hadoop@master ~]$ ssh-copy-id 172.20.2.134 [hadoop@master ~]$ ssh-copy-id 172.20.2.250 [hadoop@master ~]$ ssh-copy-id 172.20.2.110
三. 安装 Hadoop
3.1 解压安装包
1、下载 [ Master节点执行 ]
[hadoop@master ~]$ wget http://mirrors.hust.edu.cn/apache/hadoop/common/hadoop-2.9.1/hadoop-2.9.1.tar.gz
2、使用hadoop用户，创建安装目录：/home/hadoop/apps，创建数据目录：/home/hadoop/data：[ Master节点执行 ]
[hadoop@master ~]$ pwd /home/hadoop [hadoop@master ~]$ mkdir apps [hadoop@master ~]$ mkdir data [hadoop@master ~]$ ls apps data hadoop-2.9.1.tar.gz
3、在apps文件夹下解压安装包：[ Master节点执行 ]
[hadoop@master ~]$ tar -zxf hadoop-2.9.1.tar.gz -C apps/ [hadoop@master ~]$ ll apps/ total 0 drwxr-xr-x. 9 hadoop hadoop 149 Apr 16 2018 hadoop-2.9.1
3.2 Master节点配置
1、Master 节点配置
进入配置文件目录：/home/hadoop/apps/hadoop-2.9.1/etc/hadoop
2、配置core-site.xml
fs.defaultFS ： 这个属性用来指定namenode的hdfs协议的文件系统通信地址，可以指定一个主机+端口，也可以指定为一个namenode服务（这个服务内部可以有多台namenode实现ha的namenode服务。
hadoop.tmp.dir : hadoop集群在工作的时候存储的一些临时文件的目录。
[hadoop@master hadoop]$ vim core-site.xml
<configuration>
<property>
<name>fs.defaultFS</name>
<value>hdfs://master:9000</value>
</property>
<property>
<name>hadoop.tmp.dir</name>
<value>/home/hadoop/data/hadoopdata</value>
</property>
</configuration>
3、配置hdfs-site.xml
dfs.namenode.name.dir：namenode数据的存放地点。也就是namenode元数据存放的地方，记录了hdfs系统中文件的元数据。
dfs.datanode.data.dir： datanode数据的存放地点。也就是block块存放的目录了。
dfs.replication：hdfs的副本数设置。也就是上传一个文件，其分割为block块后，每个block的冗余副本个数，默认配置是3。
dfs.secondary.http.address：secondarynamenode 运行节点的信息，和 namenode 不同节点
[hadoop@master hadoop]$ vim hdfs-site.xml
<configuration>
<property>
<name>dfs.namenode.name.dir</name>
<value>/home/hadoop/data/hadoopdata/name</value>
<description>为了保证元数据的安全一般配置多个不同目录</description>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>/home/hadoop/data/hadoopdata/data</value>
<description>datanode 的数据存储目录</description>
</property>
<property>
<name>dfs.replication</name>
<value>2</value>
<description>HDFS 的数据块的副本存储个数, 默认是3</description>
</property>
<property>
<name>dfs.secondary.http.address</name>
<value>slave2:50090</value>
<description>secondarynamenode 运行节点的信息，和 namenode 不同节点</description>
</property>
</configuration>
4、配置mapred-site.xml
mapreduce.framework.name：指定mr框架为yarn方式，Hadoop二代MP也基于资源管理系统Yarn来运行 。
[hadoop@master hadoop]$ cp mapred-site.xml.template mapred-site.xml [hadoop@master hadoop]$ vim mapred-site.xml
5、配置yarn-site.xml
yarn.resourcemanager.hostname：yarn总管理器的IPC通讯地址
yarn.nodemanager.aux-services：YARN 集群为 MapReduce 程序提供的服务（常指定为 shuffle ）
[hadoop@master hadoop]$ vim yarn-site.xml
<configuration>
<!-- Site specific YARN configuration properties -->
<property>
<name>yarn.resourcemanager.hostname</name>
<value>slave3</value>
</property>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
<description>YARN 集群为 MapReduce 程序提供的 shuffle 服务</description>
</property>
</configuration>
6、配置 Slaves
[hadoop@master hadoop]$ vim slaves
3.3 slave节点配置 [ 所有slave节点执行 ]
每台服务器中的hadoop安装包的目录必须一致， 安装包的配置信息还必须保持一致
在slave1节点上，同样使用hadoop用户：
[hadoop@slave1 ~]$ mkdir apps
在master节点上：
[hadoop@master hadoop]$ scp -r ~/apps/hadoop-2.9.1/ hadoop@slave1:~/apps/hadoop-2.9.1/ [hadoop@master hadoop]$ scp -r ~/apps/hadoop-2.9.1/ hadoop@slave2:~/apps/hadoop-2.9.1/ [hadoop@master hadoop]$ scp -r ~/apps/hadoop-2.9.1/ hadoop@slave3:~/apps/hadoop-2.9.1/
3.4 Hadoop环境变量配置 [ 所有节点执行 ]
千万注意：
1、如果你使用root用户进行安装。 vi /etc/profile 即可 系统变量
2、如果你使用普通用户进行安装。 vi ~/.bashrc 用户变量（我是使用hadoop用户安装的）
[hadoop@master ~]$ pwd /home/hadoop [hadoop@master ~]$ vim .bashrc
# User specific aliases and functions export HADOOP_HOME=/home/hadoop/apps/hadoop-2.9.1 export PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin:
四 初始化 Hadoop [ Master节点执行 ]
HDFS初始化只能在HDFS集群的主节点namenode上进行，本实验中即为master节点
[hadoop@master ~]$ hadoop namenode -format DEPRECATED: Use of this script to execute hdfs command is deprecated. Instead use the hdfs command for it. 18/12/12 17:41:34 INFO namenode.NameNode: STARTUP_MSG: /************************************************************ STARTUP_MSG: Starting NameNode STARTUP_MSG: host = master/172.20.2.68 STARTUP_MSG: args = [-format] STARTUP_MSG: version = 2.9.1 STARTUP_MSG: classpath = /home/hadoop/apps/hadoop-2.9.1/etc/hadoop:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/commons-collections-3.2.2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jetty-6.1.26.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jetty-util-6.1.26.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jetty-sslengine-6.1.26.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jsp-api-2.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jersey-core-1.9.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jersey-json-1.9.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jettison-1.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/stax-api-1.0-2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/activation-1.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jackson-jaxrs-1.9.13.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jackson-xc-1.9.13.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jersey-server-1.9.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/asm-3.2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/log4j-1.2.17.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jets3t-0.9.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/java-xmlbuilder-0.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/commons-lang-2.6.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/commons-configuration-1.6.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/commons-digester-1.8.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/commons-lang3-3.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/slf4j-api-1.7.25.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/slf4j-log4j12-1.7.25.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/avro-1.7.7.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/paranamer-2.3.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/snappy-java-1.0.5.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/commons-compress-1.4.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/xz-1.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/gson-2.2.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/hadoop-auth-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/nimbus-jose-jwt-4.41.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jcip-annotations-1.0-1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/json-smart-1.3.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/apacheds-i18n-2.0.0-M15.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/api-asn1-api-1.0.0-M20.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/api-util-1.0.0-M20.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/zookeeper-3.4.6.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/netty-3.6.2.Final.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/curator-framework-2.7.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/curator-client-2.7.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jsch-0.1.54.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/curator-recipes-2.7.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/htrace-core4-4.1.0-incubating.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/stax2-api-3.1.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/woodstox-core-5.0.3.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/junit-4.11.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/hamcrest-core-1.3.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/mockito-all-1.8.5.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/hadoop-annotations-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/guava-11.0.2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/jsr305-3.0.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/commons-cli-1.2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/commons-math3-3.1.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/xmlenc-0.52.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/httpclient-4.5.2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/httpcore-4.4.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/commons-logging-1.1.3.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/commons-codec-1.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/commons-io-2.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/commons-net-3.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/lib/servlet-api-2.5.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/hadoop-common-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/hadoop-common-2.9.1-tests.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/common/hadoop-nfs-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/commons-logging-1.1.3.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/guava-11.0.2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/jsr305-3.0.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/commons-io-2.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/asm-3.2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/commons-lang-2.6.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/htrace-core4-4.1.0-incubating.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/hadoop-hdfs-client-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/okhttp-2.7.5.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/okio-1.6.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/netty-all-4.0.23.Final.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/xercesImpl-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/xml-apis-1.3.04.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/leveldbjni-all-1.8.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/jackson-databind-2.7.8.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/jackson-annotations-2.7.8.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/lib/jackson-core-2.7.8.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/hadoop-hdfs-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/hadoop-hdfs-2.9.1-tests.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/hadoop-hdfs-nfs-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/hadoop-hdfs-client-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/hadoop-hdfs-client-2.9.1-tests.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/hadoop-hdfs-native-client-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/hadoop-hdfs-native-client-2.9.1-tests.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/hadoop-hdfs-rbf-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/hdfs/hadoop-hdfs-rbf-2.9.1-tests.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/commons-cli-1.2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/log4j-1.2.17.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/xz-1.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/servlet-api-2.5.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/commons-codec-1.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jetty-util-6.1.26.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jersey-core-1.9.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jersey-client-1.9.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jackson-jaxrs-1.9.13.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jackson-xc-1.9.13.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/guice-3.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/javax.inject-1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/aopalliance-1.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/commons-io-2.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jersey-server-1.9.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/asm-3.2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jersey-json-1.9.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jettison-1.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jaxb-impl-2.2.3-1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/commons-math3-3.1.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/xmlenc-0.52.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/httpclient-4.5.2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/httpcore-4.4.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/commons-net-3.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/commons-collections-3.2.2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jetty-6.1.26.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jetty-sslengine-6.1.26.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jsp-api-2.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jets3t-0.9.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/java-xmlbuilder-0.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/commons-configuration-1.6.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/commons-digester-1.8.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/commons-beanutils-1.7.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/commons-beanutils-core-1.8.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/commons-lang3-3.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/avro-1.7.7.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/paranamer-2.3.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/snappy-java-1.0.5.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/gson-2.2.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/nimbus-jose-jwt-4.41.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jcip-annotations-1.0-1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/json-smart-1.3.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/apacheds-i18n-2.0.0-M15.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/api-asn1-api-1.0.0-M20.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/api-util-1.0.0-M20.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/zookeeper-3.4.6.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/curator-framework-2.7.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/curator-client-2.7.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jsch-0.1.54.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/curator-recipes-2.7.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/htrace-core4-4.1.0-incubating.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/stax2-api-3.1.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/woodstox-core-5.0.3.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/leveldbjni-all-1.8.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/geronimo-jcache_1.0_spec-1.0-alpha-1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/ehcache-3.3.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/HikariCP-java7-2.4.12.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/mssql-jdbc-6.2.1.jre7.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/metrics-core-3.0.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/fst-2.50.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/java-util-1.9.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/json-io-2.5.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/commons-lang-2.6.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/guava-11.0.2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jsr305-3.0.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/commons-logging-1.1.3.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/jaxb-api-2.2.2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/stax-api-1.0-2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/activation-1.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/hadoop-yarn-api-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/hadoop-yarn-common-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/hadoop-yarn-registry-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/hadoop-yarn-server-common-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/hadoop-yarn-server-applicationhistoryservice-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/hadoop-yarn-server-tests-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/hadoop-yarn-client-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/hadoop-yarn-server-sharedcachemanager-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/hadoop-yarn-server-timeline-pluginstorage-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/hadoop-yarn-server-router-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/avro-1.7.7.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/snappy-java-1.0.5.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/xz-1.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/hadoop-annotations-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/commons-io-2.4.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/asm-3.2.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/leveldbjni-all-1.8.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/guice-3.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/javax.inject-1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/junit-4.11.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/lib/hamcrest-core-1.3.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.9.1.jar:/home/hadoop/apps/hadoop-2.9.1/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.9.1-tests.jar:/home/hadoop/apps/hadoop-2.9.1/contrib/capacity-scheduler/*.jar:/home/hadoop/apps/hadoop-2.9.1/contrib/capacity-scheduler/*.jar STARTUP_MSG: build = https://github.com/apache/hadoop.git -r e30710aea4e6e55e69372929106cf119af06fd0e; compiled by 'root' on 2018-04-16T09:33Z STARTUP_MSG: java = 1.8.0_191 ************************************************************/ 18/12/12 17:41:34 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT] 18/12/12 17:41:34 INFO namenode.NameNode: createNameNode [-format] 18/12/12 17:41:35 WARN common.Util: Path /home/hadoop/data/hadoopdata/name should be specified as a URI in configuration files. Please update hdfs configuration. 18/12/12 17:41:35 WARN common.Util: Path /home/hadoop/data/hadoopdata/name should be specified as a URI in configuration files. Please update hdfs configuration. Formatting using clusterid: CID-ff72e1be-35d7-446a-ad40-8a4418fd5ca6 18/12/12 17:41:35 INFO namenode.FSEditLog: Edit logging is async:true 18/12/12 17:41:35 INFO namenode.FSNamesystem: KeyProvider: null 18/12/12 17:41:35 INFO namenode.FSNamesystem: fsLock is fair: true 18/12/12 17:41:35 INFO namenode.FSNamesystem: Detailed lock hold time metrics enabled: false 18/12/12 17:41:35 INFO namenode.FSNamesystem: fsOwner = hadoop (auth:SIMPLE) 18/12/12 17:41:35 INFO namenode.FSNamesystem: supergroup = supergroup 18/12/12 17:41:35 INFO namenode.FSNamesystem: isPermissionEnabled = true 18/12/12 17:41:35 INFO namenode.FSNamesystem: HA Enabled: false 18/12/12 17:41:35 INFO common.Util: dfs.datanode.fileio.profiling.sampling.percentage set to 0. Disabling file IO profiling 18/12/12 17:41:35 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit: configured=1000, counted=60, effected=1000 18/12/12 17:41:35 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true 18/12/12 17:41:35 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000 18/12/12 17:41:35 INFO blockmanagement.BlockManager: The block deletion will start around 2018 Dec 12 17:41:35 18/12/12 17:41:35 INFO util.GSet: Computing capacity for map BlocksMap 18/12/12 17:41:35 INFO util.GSet: VM type = 64-bit 18/12/12 17:41:35 INFO util.GSet: 2.0% max memory 889 MB = 17.8 MB 18/12/12 17:41:35 INFO util.GSet: capacity = 2^21 = 2097152 entries 18/12/12 17:41:35 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false 18/12/12 17:41:35 WARN conf.Configuration: No unit for dfs.heartbeat.interval(3) assuming SECONDS 18/12/12 17:41:35 WARN conf.Configuration: No unit for dfs.namenode.safemode.extension(30000) assuming MILLISECONDS 18/12/12 17:41:35 INFO blockmanagement.BlockManagerSafeMode: dfs.namenode.safemode.threshold-pct = 0.9990000128746033 18/12/12 17:41:35 INFO blockmanagement.BlockManagerSafeMode: dfs.namenode.safemode.min.datanodes = 0 18/12/12 17:41:35 INFO blockmanagement.BlockManagerSafeMode: dfs.namenode.safemode.extension = 30000 18/12/12 17:41:35 INFO blockmanagement.BlockManager: defaultReplication = 2 18/12/12 17:41:35 INFO blockmanagement.BlockManager: maxReplication = 512 18/12/12 17:41:35 INFO blockmanagement.BlockManager: minReplication = 1 18/12/12 17:41:35 INFO blockmanagement.BlockManager: maxReplicationStreams = 2 18/12/12 17:41:35 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000 18/12/12 17:41:35 INFO blockmanagement.BlockManager: encryptDataTransfer = false 18/12/12 17:41:35 INFO blockmanagement.BlockManager: maxNumBlocksToLog = 1000 18/12/12 17:41:35 INFO namenode.FSNamesystem: Append Enabled: true 18/12/12 17:41:35 INFO util.GSet: Computing capacity for map INodeMap 18/12/12 17:41:35 INFO util.GSet: VM type = 64-bit 18/12/12 17:41:35 INFO util.GSet: 1.0% max memory 889 MB = 8.9 MB 18/12/12 17:41:35 INFO util.GSet: capacity = 2^20 = 1048576 entries 18/12/12 17:41:35 INFO namenode.FSDirectory: ACLs enabled? false 18/12/12 17:41:35 INFO namenode.FSDirectory: XAttrs enabled? true 18/12/12 17:41:35 INFO namenode.NameNode: Caching file names occurring more than 10 times 18/12/12 17:41:35 INFO snapshot.SnapshotManager: Loaded config captureOpenFiles: falseskipCaptureAccessTimeOnlyChange: false 18/12/12 17:41:35 INFO util.GSet: Computing capacity for map cachedBlocks 18/12/12 17:41:35 INFO util.GSet: VM type = 64-bit 18/12/12 17:41:35 INFO util.GSet: 0.25% max memory 889 MB = 2.2 MB 18/12/12 17:41:35 INFO util.GSet: capacity = 2^18 = 262144 entries 18/12/12 17:41:35 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.window.num.buckets = 10 18/12/12 17:41:35 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.num.users = 10 18/12/12 17:41:35 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.windows.minutes = 1,5,25 18/12/12 17:41:35 INFO namenode.FSNamesystem: Retry cache on namenode is enabled 18/12/12 17:41:35 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis 18/12/12 17:41:35 INFO util.GSet: Computing capacity for map NameNodeRetryCache 18/12/12 17:41:35 INFO util.GSet: VM type = 64-bit 18/12/12 17:41:35 INFO util.GSet: 0.029999999329447746% max memory 889 MB = 273.1 KB 18/12/12 17:41:35 INFO util.GSet: capacity = 2^15 = 32768 entries 18/12/12 17:41:35 INFO namenode.FSImage: Allocated new BlockPoolId: BP-1184452977-172.20.2.68-1544607695499 18/12/12 17:41:35 INFO common.Storage: Storage directory /home/hadoop/data/hadoopdata/name has been successfully formatted. 18/12/12 17:41:35 INFO namenode.FSImageFormatProtobuf: Saving image file /home/hadoop/data/hadoopdata/name/current/fsimage.ckpt_0000000000000000000 using no compression 18/12/12 17:41:35 INFO namenode.FSImageFormatProtobuf: Image file /home/hadoop/data/hadoopdata/name/current/fsimage.ckpt_0000000000000000000 of size 323 bytes saved in 0 seconds . 18/12/12 17:41:35 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0 18/12/12 17:41:35 INFO namenode.NameNode: SHUTDOWN_MSG: /************************************************************ SHUTDOWN_MSG: Shutting down NameNode at master/172.20.2.68 ************************************************************/
五 启动 Hadoop
5.1 启动HDFS（HDFS集群的任何节点都可以）
[hadoop@master ~]$ start-dfs.sh Starting namenodes on [master] The authenticity of host 'master (172.20.2.68)' can't be established. ECDSA key fingerprint is 81:c3:e3:15:8e:6e:65:d8:e8:0c:c0:c8:0b:e7:e5:07. Are you sure you want to continue connecting (yes/no)? yes master: Warning: Permanently added 'master' (ECDSA) to the list of known hosts. master: starting namenode, logging to /home/hadoop/apps/hadoop-2.9.1/logs/hadoop-hadoop-namenode-master.out master: starting datanode, logging to /home/hadoop/apps/hadoop-2.9.1/logs/hadoop-hadoop-datanode-master.out slave2: starting datanode, logging to /home/hadoop/apps/hadoop-2.9.1/logs/hadoop-hadoop-datanode-slave2.out slave1: starting datanode, logging to /home/hadoop/apps/hadoop-2.9.1/logs/hadoop-hadoop-datanode-slave1.out slave3: starting datanode, logging to /home/hadoop/apps/hadoop-2.9.1/logs/hadoop-hadoop-datanode-slave3.out Starting secondary namenodes [slave2] slave2: starting secondarynamenode, logging to /home/hadoop/apps/hadoop-2.9.1/logs/hadoop-hadoop-secondarynamenode-slave2.out
5.2 启动YARN（在YARN主节点ResourceManager上执行）
只能在YARN的主节点resourcemanager中进行启动，也就是本集群的slave3。
[hadoop@slave3 ~]$ start-yarn.sh starting yarn daemons starting resourcemanager, logging to /home/hadoop/apps/hadoop-2.9.1/logs/yarn-hadoop-resourcemanager-slave3.out slave2: starting nodemanager, logging to /home/hadoop/apps/hadoop-2.9.1/logs/yarn-hadoop-nodemanager-slave2.out master: starting nodemanager, logging to /home/hadoop/apps/hadoop-2.9.1/logs/yarn-hadoop-nodemanager-master.out slave1: starting nodemanager, logging to /home/hadoop/apps/hadoop-2.9.1/logs/yarn-hadoop-nodemanager-slave1.out slave3: starting nodemanager, logging to /home/hadoop/apps/hadoop-2.9.1/logs/yarn-hadoop-nodemanager-slave3.out
六 查看4台服务器的进程
七 查看HDFS和YARN的Web管理界面
7.1 查看HDFS的Web管理界面
7.2 查看YARN的Web管理界面
访问：http://172.20.2.110:8088/cluster
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