大数据-Hadoop集群搭建-学习笔记 -BH1

其他 2020-03-03 18:47:46 阅读次数: 0

Hadoop集群搭建

下载Hadoop

http://archive.apache.org/dist/包含所有历史归档的版本

安装Hadoop2.7.7

集群组成

# hdfs:nameNode secondary nameNode /  yarn:resource manager
192.168.80.10 master 
# hdfs:dataNode / yarn:node manager
192.168.80.11 node1 
# hdfs:dataNode / yarn:node manager
192.168.80.12 node2
# hdfs:dataNode / yarn:node manager
192.168.80.13 node3

host文件如下

[hadoop@node1 ~]$ more /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
# 注释掉0.0.0.0 回环网络
# 0.0.0.0 https:***.***.com
192.168.80.10 master
192.168.80.11 node1
192.168.80.12 node2
192.168.80.13 node3
192.168.80.9 home

配置过程

  1. 上传hadoop的安装包到服务器上去/home/hadoop/
    注意：hadoop2.x的配置文件$HADOOP_HOME/etc/hadoop
  2. 解压安装包到/home/hadoop/bigdatatar -zxvf hadoop-2.7.tar.gz -C bigdata
[hadoop@master hadoop]$ ll
总用量 116
drwxr-xr-x 2 hadoop hadoop   194 7月  19 2018 bin
drwxr-xr-x 3 hadoop hadoop    20 7月  19 2018 etc
# C语言本地库的头文件
drwxr-xr-x 2 hadoop hadoop   106 7月  19 2018 include
# hadoop 的本地库，一些c语言本地库
drwxr-xr-x 3 hadoop hadoop    20 7月  19 2018 lib
drwxr-xr-x 2 hadoop hadoop   239 7月  19 2018 libexec
-rw-r--r-- 1 hadoop hadoop 86424 7月  19 2018 LICENSE.txt
drwxrwxr-x 3 hadoop hadoop  4096 11月 26 21:47 logs
-rw-r--r-- 1 hadoop hadoop 14978 7月  19 2018 NOTICE.txt
-rw-r--r-- 1 hadoop hadoop  1366 7月  19 2018 README.txt
drwxr-xr-x 2 hadoop hadoop  4096 7月  19 2018 sbin
# 文档与jar包
drwxr-xr-x 4 hadoop hadoop    31 7月  19 2018 share
  1. [hadoop@master bigdata]$ ln -s hadoop-2.7.7 hadoop创建hadoop软连接方便管理
  2. 修改配置文件（5个）

配置Hadoop文件

  • 修改~/bigdata/hadoop/etc/hadoop/hadoop-env.sh
    第25行设置为export JAVA_HOME=/usr/java/jdk1.8.0_202
    在这里插入图片描述
  • 修改~/bigdata/hadoop/etc/hadoop/core-site.xml
<configuration>
 <property>
 <!-- 
 指定HADOOP所使用的文件系统schema（URI），
 HDFS的老大（NameNode）的地址 
 -->
  <name>fs.defaultFS</name>
  <value>hdfs://master:9000</value>
 </property>
 <!-- 指定hadoop运行时产生文件的存储目录 -->
 <property>
  <name>hadoop.tmp.dir</name>
  <value>/home/hadoop/bigdata/tmp/hadoop</value>
 </property>
</configuration>
  • 修改~/bigdata/hadoop/etc/hadoop/hdfs-site.xml
<property>
    <!-- 名称节点元数据存储位置 -->    
	<name>dfs.namenode.name.dir</name>
	<value>file:///home/hadoop/bigdata/data/dfs/name</value>
</property>
<property>
 <!-- 数据节点元数据存储位置 -->
	<name>dfs.datanode.data.dir</name>
	<value>file:///home/hadoop/bigdata/data/dfs/data</value>
</property>

<property>
    <!-- 指定HDFS副本的数量 -->
	<name>dfs.replication</name>
	<value>3</value>
</property>
  • 修改~/bigdata/hadoop/etc/hadoop/mapred-site.xml
[hadoop@master hadoop]$ cp mapred-site.xml.template  mapred-site.xml
[hadoop@master hadoop]$ vim mapred-site.xml
<!-- 指定mr运行在yarn上 -->
<property>
	<name>mapreduce.framework.name</name>
	<value>yarn</value>
</property>
  • 修改~/bigdata/hadoop/etc/hadoop/yarn-site.xml
<!-- 指定YARN的老大（ResourceManager）的地址 -->
<property>
	<name>yarn.resourcemanager.hostname</name>
	<value>master</value>
</property>
<!-- reducer获取数据的方式 -->
<property>
	<name>yarn.nodemanager.aux-services</name>
	<value>mapreduce_shuffle</value>
</property>
  • 修改~/bigdata/hadoop/etc/hadoop/slaves设置dataNode，slaves是提供给自动化脚本使用的如：start-all.sh/start-dsf.sh,不配置的情况下start-dsf.sh不能自动启动其他机器的服务，可以通过hadoop-daeman.sh命令手动在其他机器上启动要启用的服务
[hadoop@master hadoop]$ more slaves 
node1
node2
node3
  • 将hadoop添加到环境变量
    vi /etc/profile
export JAVA_HOME=/usr/java/jdk1.8.0_202
export CLASSPATH=.:${JAVA_HOME}/lib
# 设置hadoop home
export HADOOP_HOME=/home/hadoop/bigdata/hadoop
export PATH=$PATH:${JAVA_HOME}/bin:${HADOOP_HOME}/bin:${HADOOP_HOME}/sbin

source /etc/profile 使环境变量立即生效

分发到集群中的其他机器

scp -r bigdata hadoop@node1:~
scp -r bigdata hadoop@node2:~
scp -r bigdata hadoop@node3:~

格式化namenode

[hadoop@master hadoop]$ hdfs namenode -format
19/11/26 21:45:35 INFO namenode.NameNode: STARTUP_MSG: 
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG:   host = master/192.168.80.10
STARTUP_MSG:   args = [-format]
STARTUP_MSG:   version = 2.7.7
STARTUP_MSG:   classpath = /home/hadoop/bigdata/apps/hadoop-2.7.7/etc/hadoop:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/activation-1.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/hadoop-annotations-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/commons-configuration-1.6.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/xz-1.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/junit-4.11.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/commons-httpclient-3.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/stax-api-1.0-2.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/apacheds-i18n-2.0.0-M15.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/hadoop-auth-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/httpclient-4.2.5.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/mockito-all-1.8.5.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jackson-jaxrs-1.9.13.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/commons-logging-1.1.3.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/curator-recipes-2.7.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jetty-sslengine-6.1.26.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jersey-json-1.9.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/avro-1.7.4.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/log4j-1.2.17.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/commons-cli-1.2.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/commons-digester-1.8.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/servlet-api-2.5.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/xmlenc-0.52.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jackson-xc-1.9.13.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jetty-util-6.1.26.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/guava-11.0.2.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/commons-compress-1.4.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/commons-io-2.4.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jersey-core-1.9.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jsp-api-2.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/commons-codec-1.4.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/netty-3.6.2.Final.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jetty-6.1.26.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jersey-server-1.9.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/java-xmlbuilder-0.4.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/paranamer-2.3.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/zookeeper-3.4.6.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/commons-collections-3.2.2.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jettison-1.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/asm-3.2.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/api-asn1-api-1.0.0-M20.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/hamcrest-core-1.3.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jsch-0.1.54.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/api-util-1.0.0-M20.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/curator-framework-2.7.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/commons-net-3.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/gson-2.2.4.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jets3t-0.9.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/commons-lang-2.6.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/commons-math3-3.1.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/httpcore-4.2.5.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/htrace-core-3.1.0-incubating.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/jsr305-3.0.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/slf4j-api-1.7.10.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/lib/curator-client-2.7.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/hadoop-common-2.7.7-tests.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/hadoop-nfs-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/common/hadoop-common-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/xercesImpl-2.9.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/commons-logging-1.1.3.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/xml-apis-1.3.04.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/guava-11.0.2.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/commons-io-2.4.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/asm-3.2.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/commons-lang-2.6.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/leveldbjni-all-1.8.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/netty-all-4.0.23.Final.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/htrace-core-3.1.0-incubating.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/lib/jsr305-3.0.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/hadoop-hdfs-2.7.7-tests.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/hadoop-hdfs-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/hdfs/hadoop-hdfs-nfs-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/jaxb-impl-2.2.3-1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/activation-1.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/zookeeper-3.4.6-tests.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/aopalliance-1.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/xz-1.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/stax-api-1.0-2.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/jaxb-api-2.2.2.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/jackson-jaxrs-1.9.13.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/commons-logging-1.1.3.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/jersey-json-1.9.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/log4j-1.2.17.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/commons-cli-1.2.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/servlet-api-2.5.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/jackson-xc-1.9.13.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/jetty-util-6.1.26.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/guava-11.0.2.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/commons-io-2.4.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/jersey-core-1.9.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/commons-codec-1.4.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/jetty-6.1.26.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/jersey-server-1.9.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/guice-3.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/jersey-client-1.9.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/zookeeper-3.4.6.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/commons-collections-3.2.2.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/jettison-1.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/asm-3.2.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/commons-lang-2.6.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/leveldbjni-all-1.8.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/javax.inject-1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/lib/jsr305-3.0.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-server-common-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-client-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-common-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-server-tests-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-api-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-registry-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-server-sharedcachemanager-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/yarn/hadoop-yarn-server-applicationhistoryservice-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/hadoop-annotations-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/xz-1.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/junit-4.11.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/commons-io-2.4.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/jackson-core-asl-1.9.13.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/guice-3.0.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/asm-3.2.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/hamcrest-core-1.3.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/leveldbjni-all-1.8.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.9.13.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/lib/javax.inject-1.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.7.7-tests.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.7.7.jar:/home/hadoop/bigdata/apps/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.7.7.jar:/home/hadoop/bigdata/hadoop/contrib/capacity-scheduler/*.jar
STARTUP_MSG:   build = Unknown -r c1aad84bd27cd79c3d1a7dd58202a8c3ee1ed3ac; compiled by 'stevel' on 2018-07-18T22:47Z
STARTUP_MSG:   java = 1.8.0_202
************************************************************/
19/11/26 21:45:35 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]
19/11/26 21:45:35 INFO namenode.NameNode: createNameNode [-format]
19/11/26 21:45:37 WARN common.Util: Path /home/hadoop/bigdata/data/dfs/name should be specified as a URI in configuration files. Please update hdfs configuration.
19/11/26 21:45:37 WARN common.Util: Path /home/hadoop/bigdata/data/dfs/name should be specified as a URI in configuration files. Please update hdfs configuration.
Formatting using clusterid: CID-5184b738-976c-4c0d-ac59-597458f57f2d
19/11/26 21:45:37 INFO namenode.FSNamesystem: No KeyProvider found.
19/11/26 21:45:37 INFO namenode.FSNamesystem: fsLock is fair: true
19/11/26 21:45:37 INFO namenode.FSNamesystem: Detailed lock hold time metrics enabled: false
19/11/26 21:45:37 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit=1000
19/11/26 21:45:37 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true
19/11/26 21:45:37 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000
19/11/26 21:45:37 INFO blockmanagement.BlockManager: The block deletion will start around 2019 十一月 26 21:45:37
19/11/26 21:45:37 INFO util.GSet: Computing capacity for map BlocksMap
19/11/26 21:45:37 INFO util.GSet: VM type       = 64-bit
19/11/26 21:45:37 INFO util.GSet: 2.0% max memory 966.7 MB = 19.3 MB
19/11/26 21:45:37 INFO util.GSet: capacity      = 2^21 = 2097152 entries
19/11/26 21:45:37 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false
19/11/26 21:45:37 INFO blockmanagement.BlockManager: defaultReplication         = 3
19/11/26 21:45:37 INFO blockmanagement.BlockManager: maxReplication             = 512
19/11/26 21:45:37 INFO blockmanagement.BlockManager: minReplication             = 1
19/11/26 21:45:37 INFO blockmanagement.BlockManager: maxReplicationStreams      = 2
19/11/26 21:45:37 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000
19/11/26 21:45:37 INFO blockmanagement.BlockManager: encryptDataTransfer        = false
19/11/26 21:45:37 INFO blockmanagement.BlockManager: maxNumBlocksToLog          = 1000
19/11/26 21:45:37 INFO namenode.FSNamesystem: fsOwner             = hadoop (auth:SIMPLE)
19/11/26 21:45:37 INFO namenode.FSNamesystem: supergroup          = supergroup
19/11/26 21:45:37 INFO namenode.FSNamesystem: isPermissionEnabled = true
19/11/26 21:45:37 INFO namenode.FSNamesystem: HA Enabled: false
19/11/26 21:45:37 INFO namenode.FSNamesystem: Append Enabled: true
19/11/26 21:45:38 INFO util.GSet: Computing capacity for map INodeMap
19/11/26 21:45:38 INFO util.GSet: VM type       = 64-bit
19/11/26 21:45:38 INFO util.GSet: 1.0% max memory 966.7 MB = 9.7 MB
19/11/26 21:45:38 INFO util.GSet: capacity      = 2^20 = 1048576 entries
19/11/26 21:45:38 INFO namenode.FSDirectory: ACLs enabled? false
19/11/26 21:45:38 INFO namenode.FSDirectory: XAttrs enabled? true
19/11/26 21:45:38 INFO namenode.FSDirectory: Maximum size of an xattr: 16384
19/11/26 21:45:38 INFO namenode.NameNode: Caching file names occuring more than 10 times
19/11/26 21:45:38 INFO util.GSet: Computing capacity for map cachedBlocks
19/11/26 21:45:38 INFO util.GSet: VM type       = 64-bit
19/11/26 21:45:38 INFO util.GSet: 0.25% max memory 966.7 MB = 2.4 MB
19/11/26 21:45:38 INFO util.GSet: capacity      = 2^18 = 262144 entries
19/11/26 21:45:38 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033
19/11/26 21:45:38 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0
19/11/26 21:45:38 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension     = 30000
19/11/26 21:45:38 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.window.num.buckets = 10
19/11/26 21:45:38 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.num.users = 10
19/11/26 21:45:38 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.windows.minutes = 1,5,25
19/11/26 21:45:38 INFO namenode.FSNamesystem: Retry cache on namenode is enabled
19/11/26 21:45:38 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis
19/11/26 21:45:38 INFO util.GSet: Computing capacity for map NameNodeRetryCache
19/11/26 21:45:38 INFO util.GSet: VM type       = 64-bit
19/11/26 21:45:38 INFO util.GSet: 0.029999999329447746% max memory 966.7 MB = 297.0 KB
19/11/26 21:45:38 INFO util.GSet: capacity      = 2^15 = 32768 entries
19/11/26 21:45:38 INFO namenode.FSImage: Allocated new BlockPoolId: BP-875596406-192.168.80.10-1574775938181
19/11/26 21:45:38 INFO common.Storage: Storage directory /home/hadoop/bigdata/data/dfs/name has been successfully formatted.
19/11/26 21:45:38 INFO namenode.FSImageFormatProtobuf: Saving image file /home/hadoop/bigdata/data/dfs/name/current/fsimage.ckpt_0000000000000000000 using no compression
19/11/26 21:45:38 INFO namenode.FSImageFormatProtobuf: Image file /home/hadoop/bigdata/data/dfs/name/current/fsimage.ckpt_0000000000000000000 of size 323 bytes saved in 0 seconds.
19/11/26 21:45:38 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
19/11/26 21:45:38 INFO util.ExitUtil: Exiting with status 0
19/11/26 21:45:38 INFO namenode.NameNode: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at master/192.168.80.10
************************************************************/

19/11/26 21:45:38 INFO common.Storage: Storage directory /home/hadoop/bigdata/data/dfs/name has been successfully formatted.说明成功

配置ssh免登陆，Hadoop会通过ssh命令启动各个机器

  • 生成ssh免登陆密钥ssh-keygen -t rsa（四个回车）,执行完这个命令后，会生成两个文件id_rsa（私钥）、id_rsa.pub（公钥）
  • 将公钥拷贝到要免密登陆的目标机器上ssh-copy-id localhost,设置本机免密登录
  • ssh-copy-id 192.168.80.11 将公钥拷贝到要免密登陆的192.168.80.11目标机器上
[hadoop@master .ssh]$ ssh-copy-id localhost
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/home/hadoop/.ssh/id_rsa.pub"
The authenticity of host 'localhost (::1)' can't be established.
***
Are you sure you want to continue connecting (yes/no)? yes
/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
hadoop@localhost's password: 

Number of key(s) added: 1

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

[hadoop@master .ssh]$ ls
authorized_keys  id_rsa  id_rsa.pub  known_hosts
# 测试免密登录
[hadoop@master .ssh]$ ssh localhost
Last login: Sun Nov 24 20:13:48 2019
# 退出
[hadoop@master ~]$ exit
登出
Connection to localhost closed.

对集群中所有机器设置免密登录，自动化脚本会通过ssh启动集群中所有机器

ssh-copy-id 192.168.80.10
ssh-copy-id 192.168.80.11
ssh-copy-id 192.168.80.12
ssh-copy-id 192.168.80.13

启动hadoop

  • 先启动HDFS sbin/start-dfs.sh
[hadoop@master hadoop]$ start-dfs.sh
Starting namenodes on [master]
master: starting namenode, logging to /home/hadoop/bigdata/hadoop-2.7.7/logs/hadoop-hadoop-namenode-master.out
node2: starting datanode, logging to /home/hadoop/bigdata/hadoop-2.7.7/logs/hadoop-hadoop-datanode-node2.out
node1: starting datanode, logging to /home/hadoop/bigdata/hadoop-2.7.7/logs/hadoop-hadoop-datanode-node1.out
node3: starting datanode, logging to /home/hadoop/bigdata/hadoop-2.7.7/logs/hadoop-hadoop-datanode-node3.out
Starting secondary namenodes [master]
master: starting secondarynamenode, logging to /home/hadoop/bigdata/hadoop-2.7.7/logs/hadoop-hadoop-secondarynamenode-master.out
  • 再启动YARN sbin/start-yarn.sh
[hadoop@master hadoop]$ start-yarn.sh 
# 没有与start-dfs.sh 启动时 on [master]，说明不是使用ssh命令启动，而是yarn-daemno.sh start resourcemanager在本地启动，而start-dfs.sh是通过ssh命令启动
starting yarn daemons
starting resourcemanager, logging to /home/hadoop/bigdata/hadoop-2.7.7/logs/yarn-hadoop-resourcemanager-master.out
node1: starting nodemanager, logging to /home/hadoop/bigdata/hadoop-2.7.7/logs/yarn-hadoop-nodemanager-node1.out
node2: starting nodemanager, logging to /home/hadoop/bigdata/hadoop-2.7.7/logs/yarn-hadoop-nodemanager-node2.out
node3: starting nodemanager, logging to /home/hadoop/bigdata/hadoop-2.7.7/logs/yarn-hadoop-nodemanager-node3.out
[hadoop@master hadoop]$ jps

验证是否启动成功

# 使用jps命令验证
[hadoop@master hadoop]$ jps
2643 NameNode
2846 SecondaryNameNode
3849 ResourceManager
2959 Jps

[hadoop@master current]$ hadoop-daemon.sh start namenode可以启动单独服务,nameNode必须在core-site-xml指定的机器上启动，dataNode可以手动逐个启动

管理界面

http://192.168.80.10:50070 （HDFS管理界面）
http://192.168.80.10:8088 （MR管理界面）

查看集群状态

hdfs dfsadmin -report

VIM

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