CentOS6.5如何实现Hadoop_2.8.1编译及HDFS伪分布式部署(centos,hadoop,hdfs,开发技术)

CentOS6.5实现Hadoop编译及HDFS伪分布式部署

Hadoop 2.x 三大组件
MapReduce(Others) -- 计算
YARN -- 资源和作业调度平台
HDFS -- 存储

环境准备：
[root@hadoop001 software]# pwd
/opt/software
-rw-r--r--. 1 root root 8617253 May 14 07:05 apache-maven-3.3.9-bin.zip
-rw-r--r--. 1 root root 7546219 May 14 07:05 findbugs-1.3.9.zip
-rw-r--r--. 1 root root 34523353 May 14 07:05 hadoop-2.8.1-src.tar.gz
-rw-r--r--. 1 root root 424555111 May 14 07:09 hadoop-2.8.1.tar.gz
-rw-r--r--. 1 root root 173271626 May 14 07:09 jdk-8u45-linux-x64.gz
-rw-r--r--. 1 root root 96721446 May 14 07:07 .m2.tar.gz
-rw-r--r--. 1 root root 2401901 May 14 07:04 protobuf-2.5.0.tar.gz



1.Hadoop源代码下载
[root@hadoop001 software]# tar -xzvf hadoop-2.8.1-src.tar.gz
# 检查源码包环境
[root@hadoop001 hadoop-2.8.1-src]# cat BUILDING.txt

----------------------------------------------------------------------------------
Requirements:
* Unix System
* JDK 1.7+
* Maven 3.0 or later
* Findbugs 1.3.9 (if running findbugs)
* ProtocolBuffer 2.5.0
* CMake 2.6 or newer (if compiling native code), must be 3.0 or newer on Mac
* Zlib devel (if compiling native code)
* openssl devel (if compiling native hadoop-pipes and to get the best HDFS encryption performance)
* Linux FUSE (Filesystem in Userspace) version 2.6 or above (if compiling fuse_dfs)
* Internet connection for first build (to fetch all Maven and Hadoop dependencies)


2.JAVA安装
[root@hadoop001 ~]# mkdir -p /usr/java
[root@hadoop001 ~]# mv jdk-8u45-linux-x64.gz /usr/java
[root@hadoop001 ~]# cd /usr/java
[root@hadoop001 ~]# tar -xzvf jdk-8u45-linux-x64.gz

# 修改用户和用户组
[root@hadoop001 java]# ll
total 169388
drwxr-xr-x. 8 uucp 143 4096 Apr 10 2015 jdk1.8.0_45
-rw-r--r--. 1 root root 173271626 May 14 07:09 jdk-8u45-linux-x64.gz
[root@hadoop002 java]# chown -R root:root jdk1.8.0_45

[root@hadoop002 java]# ll
total 169388
drwxr-xr-x. 8 root root 4096 Apr 11 2015 jdk1.8.0_45
-rw-r--r--. 1 root root 173271626 Mar 16 15:25 jdk-8u45-linux-x64.gz

# JAVA全局变量配置
[root@hadoop001 java]# vi /etc/profile
export JAVA_HOME=/usr/java/jdk1.8.0_45
export PATH=$JAVA_HOME/bin:$PATH
注：不用卸载原有JDK,环境变量可以覆盖原来JDK

[root@hadoop001 java]# source /etc/profile
[root@hadoop001 java]# which java
/usr/java/jdk1.8.0_45/bin/java
[root@hadoop001 java]# java -version
java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)

3.Maven安装与部署
[root@hadoop001 software]# ll
total 466948
-rw-r--r--. 1 root root 8617253 May 14 07:05 apache-maven-3.3.9-bin.zip

[root@hadoop001 software]# unzip apache-maven-3.3.9-bin.zip
[root@hadoop001 software]# ll
total 466952
drwxr-xr-x. 6 root root 4096 Nov 10 2015 apache-maven-3.3.9
-rw-r--r--. 1 root root 8617253 May 14 07:05 apache-maven-3.3.9-bin.zip

#Maven全局环境变量
[root@hadoop001 java]# vi /etc/profile
export MAVEN_HOME=/opt/software/apache-maven-3.3.9
export PATH=$MAVEN_HOME/bin:$JAVA_HOME/bin:$PATH
[root@hadoop001 software]# source /etc/profile

[root@hadoop001 software]# which mvn
/opt/software/apache-maven-3.3.9/bin/mvn

[root@hadoop001 software]# mvn -version
Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T11:41:47-05:00)
Maven home: /opt/software/apache-maven-3.3.9
Java version: 1.8.0_45, vendor: Oracle Corporation
Java home: /usr/java/jdk1.8.0_45/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "2.6.32-431.el6.x86_64", arch: "amd64", family: "unix"

#Maven仓库文件手动导入
[root@hadoop001 software]# mv .m2.tar.gz ~
[root@hadoop001 software]# cd ~
[root@hadoop001 ~]# tar -xzvf .m2.tar.gz


# Maven仓库默认路径和修改
[root@hadoop001 conf]# pwd
/opt/software/apache-maven-3.3.9/conf/settings.xml

<!-- localRepository
| The path to the local repository maven will use to store artifacts.
|
| Default: ${user.home}/.m2/repository
/path/to/local/repo
-->
-- pro.xml以maven仓库的项目，mvn 编译、打包、测试


4.protobuf源码安装
[root@hadoop001 software]# pwd
/opt/software
[root@hadoop001 software]# tar -xzvf protobuf-2.5.0.tar.gz


[root@hadoop001 software]# ll
total 466956
drwxr-xr-x. 10 109965 5000 4096 Feb 26 2013 protobuf-2.5.0
-rw-r--r--. 1 root root 2401901 May 14 07:04 protobuf-2.5.0.tar.gz
[root@hadoop001 software]# chown -R root:root protobuf-2.5.0

[root@hadoop001 software]# cd protobuf-2.5.0
[root@hadoop001 protobuf-2.5.0]# yum install -y gcc gcc-c++ make cmake
[root@hadoop001 protobuf-2.5.0]# ./configure --prefix=/usr/local/protobuf
[root@hadoop001 protobuf-2.5.0]# make && make install

#protobuf全局环境变量
[root@hadoop001 java]# vi /etc/profile
export PROTOC_HOME=/usr/local/protobuf
export PATH=$PROTOC_HOME/bin:$FINDBUGS_HOME/bin:$MAVEN_HOME/bin:$JAVA_HOME/bin:$PATH
[root@hadoop001 protobuf-2.5.0]# source /etc/profile

[root@hadoop001 protobuf-2.5.0]# protoc --version
libprotoc 2.5.0
[root@hadoop001 protobuf-2.5.0]#


5.Findbugs安装
[root@hadoop001 software]# pwd
/opt/software
[root@hadoop001 software]# unzip findbugs-1.3.9.zip
[root@hadoop001 software]# ll
total 466960
drwxr-xr-x. 7 root root 4096 Aug 21 2009 findbugs-1.3.9
-rw-r--r--. 1 root root 7546219 May 14 07:05 findbugs-1.3.9.zip

#Findbugs全局环境变量
[root@hadoop002 software]# vi /etc/profile
export FINDBUGS_HOME=/opt/software/findbugs-1.3.9
export PATH=$FINDBUGS_HOME/bin:$MAVEN_HOME/bin:$JAVA_HOME/bin:$PATH
[root@hadoop001 software]#
[root@hadoop001 software]# source /etc/profile
[root@hadoop001 software]# findbugs -version
1.3.9

6.其他依赖
yum install -y openssl openssl-devel svn ncurses-devel zlib-devel libtool
yum install -y snappy snappy-devel bzip2 bzip2-devel lzo lzo-devel lzop autoconf automake

7.Hadoop源代码编译
[root@hadoop001 hadoop-2.8.1-src]# mvn clean package -Pdist,native -DskipTests -Dtar
[INFO] Apache Hadoop Extras ............................... SUCCESS [ 3.050 s]
[INFO] Apache Hadoop Pipes ................................ SUCCESS [ 7.795 s]
[INFO] Apache Hadoop OpenStack support .................... SUCCESS [ 5.657 s]
[INFO] Apache Hadoop Amazon Web Services support .......... SUCCESS [ 6.914 s]
[INFO] Apache Hadoop Azure support ........................ SUCCESS [ 5.264 s]
[INFO] Apache Hadoop Client ............................... SUCCESS [ 7.341 s]
[INFO] Apache Hadoop Mini-Cluster ......................... SUCCESS [ 1.698 s]
[INFO] Apache Hadoop Scheduler Load Simulator ............. SUCCESS [ 6.050 s]
[INFO] Apache Hadoop Tools Dist ........................... SUCCESS [ 6.549 s]
[INFO] Apache Hadoop Azure Data Lake support .............. SUCCESS [ 3.666 s]
[INFO] Apache Hadoop Tools ................................ SUCCESS [ 0.016 s]
[INFO] Apache Hadoop Distribution ......................... SUCCESS [ 47.066 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 12:39 min
[INFO] Finished at: 2018-05-14T22:30:38-04:00
[INFO] Final Memory: 190M/454M
[INFO] ------------------------------------------------------------------------




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hodoop部署
单机 --无进程
伪分布式部署 -- 进程存在+1节点 开发
集群部署 -- 进程存在+n阶段 开发/生产

[root@hadoop001 software]# tar -xzvf hadoop-2.8.1.tar.gz
[root@hadoop001 software]# chown -R root:root hadoop-2.8.1

[root@hadoop001 hadoop-2.8.1]# ll
drwxrwxr-x. 2 root root 4096 Jun 2 2017 bin -- 执行命令shell
drwxrwxr-x. 3 root root 4096 Jun 2 2017 etc -- 配置文件
drwxrwxr-x. 2 root root 4096 Jun 2 2017 include
drwxrwxr-x. 3 root root 4096 Jun 2 2017 lib -- 库
drwxrwxr-x. 2 root root 4096 Jun 2 2017 libexec
-rw-rw-r--. 1 root root 99253 Jun 2 2017 LICENSE.txt
-rw-rw-r--. 1 root root 15915 Jun 2 2017 NOTICE.txt
-rw-r--r--. 1 root root 1366 Jun 2 2017 README.txt
drwxrwxr-x. 2 root root 4096 Jun 2 2017 sbin -- 启动和关闭hadoop
drwxrwxr-x. 4 root root 4096 Jun 2 2017 share -- jar

#hadoop全局环境变量
[root@hadoop001 hadoop-2.8.1]# vim /etc/profile
export HADOOP_HOME=/opt/software/hadoop-2.8.1
export PATH=$HADOOP_HOME/bin:$PROTOC_HOME/bin:$FINDBUGS_HOME/bin:$MAVEN_HOME/bin:$JAVA_HOME/bin:$PATH

[root@hadoop001 hadoop-2.8.1]# source /etc/profile
[root@hadoop001 hadoop-2.8.1]# which hadoop
/opt/software/hadoop-2.8.1/bin/hadoop

[root@hadoop001 bin]# rm -rf *.cmd
[root@hadoop001 sbin]# rm -rf *.cmd

#配置core-site文件
[root@hadoop001 hadoop]# vim core-site.xml

<configuration>

</configuration>

<configuration>

</configuration>

<configuration>

#本机ssh验证配置
[root@hadoop001 hadoop]# cd ~
[root@hadoop001 ~]# cd .ssh
[root@hadoop001 .ssh]# ll
total 0
[root@hadoop001 ~]# rm -rf .ssh
[root@hadoop001 ~]# ssh-keygen
[root@hadoop001 ~]# cd .ssh
[root@hadoop001 .ssh]# ll
total 8
-rw-------. 1 root root 1675 May 14 23:38 id_rsa
-rw-r--r--. 1 root root 396 May 14 23:38 id_rsa.pub
[root@hadoop001 .ssh]# cat id_rsa.pub >> authorized_keys
[root@hadoop001 .ssh]# ll
total 12
-rw-r--r--. 1 root root 396 May 14 23:40 authorized_keys
-rw-------. 1 root root 1675 May 14 23:38 id_rsa
-rw-r--r--. 1 root root 396 May 14 23:38 id_rsa.pub

#第一次必须操作，本机修改过端口
[root@hadoop001 ~]# ssh localhost date
ssh: connect to host localhost port 22: Connection refused
[root@hadoop001 ~]# ssh -p2222 localhost date
The authenticity of host '[localhost]:2222 ([::1]:2222)' can't be established.
RSA key fingerprint is 09:b9:67:65:cb:e6:ca:31:5d:33:6c:3b:92:9e:c2:1a.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '[localhost]:2222' (RSA) to the list of known hosts.
Mon May 14 23:42:37 EDT 2018

#格式化HDFS文件系统
[root@hadoop001 ~]# which hdfs
/opt/software/hadoop-2.8.1/bin/hdfs
[root@hadoop001 ~]# hdfs namenode -format

#启动HDFS文件系统
[root@hadoop001 sbin]# /opt/software/hadoop-2.8.1/sbin/start-dfs.sh
Starting namenodes on [localhost]
localhost: ssh: connect to host localhost port 22: Connection refused
localhost: ssh: connect to host localhost port 22: Connection refused
Starting secondary namenodes [0.0.0.0]
0.0.0.0: ssh: connect to host 0.0.0.0 port 22: Connection refused

#解决port 22错误

[root@hadoop000 hadoop]# vi hadoop-env.sh

添加：export HADOOP_SSH_OPTS="-p 2222"

#解决 ERROR:JAVA_HOME
[root@hadoop000 hadoop]# vi hadoop-env.sh
export JAVA_HOME=/usr/java/jdk1.8.0_45

#启动OK
[root@hadoop001 sbin]# /opt/software/hadoop-2.8.1/sbin/start-dfs.sh
[root@hadoop001 hadoop]# /opt/software/hadoop-2.8.1/sbin/start-dfs.sh
Starting namenodes on [localhost]
localhost: starting namenode, logging to /opt/software/hadoop-2.8.1/logs/hadoop-root-namenode-hadoop001.out
localhost: starting datanode, logging to /opt/software/hadoop-2.8.1/logs/hadoop-root-datanode-hadoop001.out
Starting secondary namenodes [0.0.0.0]
0.0.0.0: starting secondarynamenode, logging to /opt/software/hadoop-2.8.1/logs/hadoop-root-secondarynamenode-hadoop001.out

#检测启动
[root@hadoop000 hadoop-2.8.1]# jps
16243 Jps
15943 DataNode
5127 Launcher
16139 SecondaryNameNode
15853 NameNode