手机版
你好,游客 登录 注册
背景:
阅读新闻

部署Hadoop2.0高性能集群

[日期:2019-07-24] 来源:Linux社区  作者:winter1519 [字体: ]

部署Hadoop高性能集群:

拓扑图:

一、实验前期环境准备:

1、三台主机配置hosts文件:(复制到另外两台主机上)

[root@tiandong63 ~]# more /etc/hosts 
192.168.199.3 tiandong63
192.168.199.4 tiandong64
192.168.199.5 tiandong65

2、创建Hadoop账号(另外两台主机上都的创建)

[root@tiandong63 ~]#useradd -u 8000 hadoop

[root@tiandong63 ~]#echo '123456' | passwd --stdin hadoop

3、给hadoop用户增加sudo权限,增加内容(另外两台主机上都得配置)

[root@tiandong63 ~]# vim /etc/sudoers
hadoop  ALL=(ALL)      ALL
4、主机互信(在tiandong63主机上)
可以ssh无密码登录机器tiandong63,tiandong64,tiandong65 ,方便后期复制文件和启动服务。因为namenode启动时,会连接到datanode上启动对应的服务。

[root@tiandong63 ~]# su - hadoop
[hadoop@tiandong63 ~]$ ssh-keygen
[hadoop@tiandong63 ~]$ ssh-copy-id root@192.168.199.4
[hadoop@tiandong63 ~]$ ssh-copy-id root@192.168.199.5

二、配置hadoop环境

1、配置jdk环境:(三台都的配置)

[root@tiandong63 ~]# ll jdk-8u191-linux-x64.tar.gz
-rw-r--r-- 1 root root 191753373 Dec 30 00:58 jdk-8u191-linux-x64.tar.gz

[root@tiandong63 ~]# tar zxvf jdk-8u191-linux-x64.tar.gz -C /usr/local/src/

[root@tiandong63 ~]# vim /etc/profile
export Java_HOME=/usr/local/src/jdk1.8.0_191
export JAVA_BIN=/usr/local/src/jdk1.8.0_191/bin
export PATH=${JAVA_HOME}/bin:$PATH
export CLASSPATH=.:${JAVA_HOME}/lib/dt.jar:${JAVA_HOME}/lib/tools.jar
export hadoop_root_logger=DEBUG,console
[root@tiandong63 ~]# source /etc/profile
2、关闭防火墙(三台都的关闭)
[root@tiandong63 ~]# /etc/init.d/iptables stop
3、在tiandong63安装Hadoop 并配置成namenode主节点
[root@tiandong63 ~]# cd /home/hadoop/
[root@tiandong63 hadoop]# ll hadoop-2.7.7.tar.gz
-rw-r--r-- 1 hadoop hadoop 218720521 Dec 29 21:11 hadoop-2.7.7.tar.gz
[root@tiandong63 ~]# su - hadoop
[hadoop@tiandong63 ~]$ tar -zxvf hadoop-2.7.7.tar.gz
创建hadoop相关的工作目录:
[hadoop@tiandong63 ~]$ mkdir -p /home/hadoop/dfs/name/ /home/hadoop/dfs/data/^Chome/hadoop/tmp/
4、配置hadoop(修改7个配置文件)

文件名称:hadoop-env.sh、yarn-evn.sh、slaves、core-site.xml、hdfs-site.xml、mapred-site.xml、yarn-site.xml

[hadoop@tiandong63 ~]$ cd /home/hadoop/hadoop-2.7.7/etc/hadoop/
[hadoop@tiandong63 hadoop]$ vim hadoop-env.sh    指定hadoop的Java运行环境
 25 export JAVA_HOME=/usr/local/src/jdk1.8.0_191
[hadoop@tiandong63 hadoop]$ vim yarn-env.sh    指定yarn框架的java运行环境
 26  JAVA_HOME=/usr/local/src/jdk1.8.0_191
[hadoop@tiandong63 hadoop]$ vim slaves        指定datanode 数据存储服务器
tiandong64
tiandong65

[hadoop@tiandong63 hadoop]$ vim core-site.xml    指定访问hadoop web界面访问路径
19 <configuration>
 20  <property>
 21      <name>fs.defaultFS</name>
 22      <value>hdfs://tiandong63:9000</value>
 23  </property>
 24
 25  <property>
 26      <name>io.file.buffer.size</name>
 27      <value>131072</value>
 28  </property>
 29
 30  <property>
 31      <name>hadoop.tmp.dir</name>
 32      <value>file:/home/hadoop/tmp</value>
 33      <description>Abase for other temporary directories.</description>
 34  </property>
 35 </configuration>
[hadoop@tiandong63 hadoop]$ mkdir -p /home/hadoop/tmp

[hadoop@tiandong63 hadoop]$ vim hdfs-site.xml

hdfs的配置文件,dfs.http.address配置了hdfs的http的访问位置,dfs.replication配置了文件块的副本数,一般不大于从机的个数。
19 <configuration>
 20  <property>
 21      <name>dfs.namenode.secondary.http-address</name>
 22      <value>tiandong63:9001</value>
 23  </property>
 24
 25  <property>
 26        <name>dfs.namenode.name.dir</name>
 27        <value>file:/home/hadoop/dfs/name</value>
 28  </property>
 29  <property>
 30        <name>dfs.datanode.data.dir</name>
 31        <value>file:/home/hadoop/dfs/data</value>
 32  </property>
 33
 34  <property>
 35      <name>dfs.replication</name>
 36      <value>2</value>
 37  </property>
 38
 39  <property>
 40      <name>dfs.webhdfs.enabled</name>
 41      <value>true</value>
 42  </property>
 43 </configuration>
[hadoop@tiandong63 hadoop]$ vim mapred-site.xml
 19 <configuration>
 20  <property>
 21    <name>mapreduce.framework.name</name>
 22    <value>yarn</value>
 23  </property>
 24
 25  <property>
 26      <name>mapreduce.jobhistory.address</name>
 27      <value>tiandong63:10020</value>
 28  </property>
 29
 30  <property>
 31      <name>mapreduce.jobhistory.webapp.address</name>
 32      <value>tiandong:19888</value>
 33  </property>
 34 </configuration>
[hadoop@tiandong63 hadoop]$ vim yarn-site.xml    该文件为yarn框架的配置,主要是一些任务的启动位置
 15 <configuration>
 16
 17 <!-- Site specific YARN configuration properties -->
 18 <property>
 19      <name>yarn.nodemanager.aux-services</name>
 20          <value>mapreduce_shuffle</value>
 21            </property>
 22
 23  <property>
 24      <name>yarn.nodemanager.aux-services.mapreduce.shuffle.class</name>
 25            <value>org.apache.hadoop.mapred.ShuffleHandler</value>
 26            </property>
 27
 28  <property>
 29      <name>yarn.resourcemanager.address</name>
 30          <value>tiandong63:8032</value>
 31          </property>
 32
 33  <property>
 34      <name>yarn.resourcemanager.scheduler.address</name>
 35                <value>tiandong63:8030</value>
 36                </property>
 37
 38  <property>
 39      <name>yarn.resourcemanager.resource-tracker.address</name>
 40            <value>tiandong63:8031</value>
 41            </property>
 42
 43  <property>
 44      <name>yarn.resourcemanager.admin.address</name>
 45          <value>tiandong63:8033</value>
 46          </property>
 47
 48  <property>
 49      <name>yarn.resourcemanager.webapp.address</name>
 50          <value>tiandong63:8088</value>
 51          </property>
 52 </configuration>

复制到其他datanode节点(192.168.199.4/5)
[hadoop@tiandong63 ~]$ scp -r /home/hadoop/hadoop-2.7.7 hadoop@tiandong64
[hadoop@tiandong63 ~]$ scp -r /home/hadoop/hadoop-2.7.7 hadoop@tiandong65

三、启动hadoop:
在tiandong63上面启动(使用hadoop用户)
1、格式化:
[hadoop@tiandong63 ~]$ cd /home/hadoop/hadoop-2.7.7/bin/
[hadoop@tiandong63 bin]$ ./hdfs nodename -format
2、启动hdfs:
[hadoop@tiandong63 ~]$ /home/hadoop/hadoop-2.7.7/sbin/start-dfs.sh
查看进程(tiandong63上面查看namenode):
[hadoop@tiandong63 ~]$ ps -axu | grep namenode --color
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.8/FAQ
hadoop    42851  0.4 17.6 2762196 177412 ?      Sl  18:13  1:26 /usr/local/src/jdk1.8.0_191/bin/java -Dproc_namenode -Xmx1000m -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=hadoop.log -Dhadoop.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.id.str=hadoop -Dhadoop.root.logger=INFO,console -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -Dhadoop.policy.file=hadoop-policy.xml -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=hadoop-hadoop-namenode-tiandong63.log -Dhadoop.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.id.str=hadoop -Dhadoop.root.logger=INFO,RFA -Djava.library.path=/home/hadoop/hadoop-2.7.7/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
hadoop    43046  0.2 13.3 2733336 134344 ?      Sl  18:13  0:35 /usr/local/src/jdk1.8.0_191/bin/java -Dproc_secondarynamenode -Xmx1000m -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=hadoop.log -Dhadoop.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.id.str=hadoop -Dhadoop.root.logger=INFO,console -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -Dhadoop.policy.file=hadoop-policy.xml -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=hadoop-hadoop-secondarynamenode-tiandong63.log -Dhadoop.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.id.str=hadoop -Dhadoop.root.logger=INFO,RFA -Djava.library.path=/home/hadoop/hadoop-2.7.7/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.SecondaryNameNode
在tiandong64和tiandong65上面查看进程(datanode)
[root@tiandong64 ~]# ps -aux|grep datanode
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.8/FAQ
hadoop    3938  0.3 12.2 2757576 122592 ?      Sl  18:13  1:04 /usr/local/src/jdk1.8.0_191/bin/java -Dproc_datanode -Xmx1000m -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=hadoop.log -Dhadoop.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.id.str=hadoop -Dhadoop.root.logger=INFO,console -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -Dhadoop.policy.file=hadoop-policy.xml -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=hadoop-hadoop-datanode-tiandong64.log -Dhadoop.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.id.str=hadoop -Dhadoop.root.logger=INFO,RFA -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -Dhadoop.policy.file=hadoop-policy.xml -Djava.net.preferIPv4Stack=true -server -Dhadoop.security.logger=ERROR,RFAS -Dhadoop.security.logger=ERROR,RFAS -Dhadoop.security.logger=ERROR,RFAS -Dhadoop.security.logger=INFO,RFAS org.apache.hadoop.hdfs.server.datanode.DataNode
3、启动yarn(在tiandong63上面,即启动分布式计算):
[hadoop@tiandong63 ~]$ /home/hadoop/hadoop-2.7.7/sbin/start-yarn.sh
在tiandong63上面查看进程(resourcemanager进程)
[hadoop@tiandong63 ~]$ ps -ef|grep resourcemanager --color
hadoop    43196      1  0 18:14 pts/1    00:02:55 /usr/local/src/jdk1.8.0_191/bin/java -Dproc_resourcemanager -Xmx1000m -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dyarn.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=yarn-hadoop-resourcemanager-tiandong63.log -Dyarn.log.file=yarn-hadoop-resourcemanager-tiandong63.log -Dyarn.home.dir= -Dyarn.id.str=hadoop -Dhadoop.root.logger=INFO,RFA -Dyarn.root.logger=INFO,RFA -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -Dyarn.policy.file=hadoop-policy.xml -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dyarn.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=yarn-hadoop-resourcemanager-tiandong63.log -Dyarn.log.file=yarn-hadoop-resourcemanager-tiandong63.log -Dyarn.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.root.logger=INFO,RFA -Dyarn.root.logger=INFO,RFA -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -classpath /home/hadoop/hadoop-2.7.7/etc/hadoop:/home/hadoop/hadoop-2.7.7/etc/hadoop:/home/hadoop/hadoop-2.7.7/etc/hadoop:/home/hadoop/hadoop-2.7.7/share/hadoop/common/lib/*:/home/hadoop/hadoop-2.7.7/share/hadoop/common/*:/home/hadoop/hadoop-2.7.7/share/hadoop/hdfs:/home/hadoop/hadoop-2.7.7/share/hadoop/hdfs/lib/*:/home/hadoop/hadoop-2.7.7/share/hadoop/hdfs/*:/home/hadoop/hadoop-2.7.7/share/hadoop/yarn/lib/*:/home/hadoop/hadoop-2.7.7/share/hadoop/yarn/*:/home/hadoop/hadoop-2.7.7/share/hadoop/mapreduce/lib/*:/home/hadoop/hadoop-2.7.7/share/hadoop/mapreduce/*:/contrib/capacity-scheduler/*.jar:/contrib/capacity-scheduler/*.jar:/contrib/capacity-scheduler/*.jar:/contrib/capacity-scheduler/*.jar:/home/hadoop/hadoop-2.7.7/share/hadoop/yarn/*:/home/hadoop/hadoop-2.7.7/share/hadoop/yarn/lib/*:/home/hadoop/hadoop-2.7.7/etc/hadoop/rm-config/log4j.properties org.apache.hadoop.yarn.server.resourcemanager.ResourceManager
在tiandong64和tiandong65上面查看进程(nodemanager)
[root@tiandong64 ~]# ps -aux|grep nodemanager --color
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.8/FAQ
hadoop    4048  0.5 15.7 2802552 158380 ?      Sl  18:14  1:42 /usr/local/src/jdk1.8.0_191/bin/java -Dproc_nodemanager -Xmx1000m -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dyarn.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=yarn-hadoop-nodemanager-tiandong64.log -Dyarn.log.file=yarn-hadoop-nodemanager-tiandong64.log -Dyarn.home.dir= -Dyarn.id.str=hadoop -Dhadoop.root.logger=INFO,RFA -Dyarn.root.logger=INFO,RFA -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -Dyarn.policy.file=hadoop-policy.xml -server -Dhadoop.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dyarn.log.dir=/home/hadoop/hadoop-2.7.7/logs -Dhadoop.log.file=yarn-hadoop-nodemanager-tiandong64.log -Dyarn.log.file=yarn-hadoop-nodemanager-tiandong64.log -Dyarn.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.home.dir=/home/hadoop/hadoop-2.7.7 -Dhadoop.root.logger=INFO,RFA -Dyarn.root.logger=INFO,RFA -Djava.library.path=/home/hadoop/hadoop-2.7.7/lib/native -classpath /home/hadoop/hadoop-2.7.7/etc/hadoop:/home/hadoop/hadoop-2.7.7/etc/hadoop:/home/hadoop/hadoop-2.7.7/etc/hadoop:/home/hadoop/hadoop-2.7.7/share/hadoop/common/lib/*:/home/hadoop/hadoop-2.7.7/share/hadoop/common/*:/home/hadoop/hadoop-2.7.7/share/hadoop/hdfs:/home/hadoop/hadoop-2.7.7/share/hadoop/hdfs/lib/*:/home/hadoop/hadoop-2.7.7/share/hadoop/hdfs/*:/home/hadoop/hadoop-2.7.7/share/hadoop/yarn/lib/*:/home/hadoop/hadoop-2.7.7/share/hadoop/yarn/*:/home/hadoop/hadoop-2.7.7/share/hadoop/mapreduce/lib/*:/home/hadoop/hadoop-2.7.7/share/hadoop/mapreduce/*:/contrib/capacity-scheduler/*.jar:/contrib/capacity-scheduler/*.jar:/home/hadoop/hadoop-2.7.7/share/hadoop/yarn/*:/home/hadoop/hadoop-2.7.7/share/hadoop/yarn/lib/*:/home/hadoop/hadoop-2.7.7/etc/hadoop/nm-config/log4j.properties org.apache.hadoop.yarn.server.nodemanager.NodeManager
注意:start-dfs和start-yarn.sh这两个脚本可以使用start-all.sh代替

4、查看HDFS分布式文件系统状态
[hadoop@tiandong63 ~]$ /home/hadoop/hadoop-2.7.7/bin/hdfs dfsadmin -report

四、hadoop的简单使用

运行hadoop计算任务,word count字数统计

在HDFS上创建文件夹:

[hadoop@tiandong63 ~]$ /home/hadoop/hadoop-2.7.7/bin/hadoop fs -mkdir /test/input
查看文件夹:

[hadoop@tiandong63 ~]$ /home/hadoop/hadoop-2.7.7/bin/hadoop fs -ls /test/
drwxr-xr-x  - hadoop supergroup          0 2018-12-30 21:40 /test/input
上传文件:

创建一个计算的文件:

[hadoop@tiandong63 ~]$ more file1.txt
welcome to beijing
my name is thunder
what is your name
上传到HDFS的/test/input文件夹中

[hadoop@tiandong63 ~]$ /home/hadoop/hadoop-2.7.7/bin/hadoop fs -put /home/hadoop/file1.txt /test/input
查看是否上传成功:

[hadoop@tiandong63 ~]$ /home/hadoop/hadoop-2.7.7/bin/hadoop fs -ls /test/input
Found 1 items
-rw-r--r--  2 hadoop supergroup        56 2018-12-30 21:40 /test/input/file1.txt

计算:
[hadoop@tiandong63 ~]$ /home/hadoop/hadoop-2.7.7/bin/hadoop jar /home/hadoop/hadoop-2.7.7/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.7.jar wordcount /test/input /test/output
查看运行结果:
[hadoop@tiandong63 ~]$  /home/hadoop/hadoop-2.7.7/bin/hadoop fs -cat /test/output/part-r-00000
beijing   1
is   2
my   1
name   2
thunder   1
to   1
welcome   1
what   1
your   1

更多Hadoop相关信息见Hadoop 专题页面 https://www.linuxidc.com/topicnews.aspx?tid=13

 

Linux公社的RSS地址https://www.linuxidc.com/rssFeed.aspx

 

本文永久更新链接地址https://www.linuxidc.com/Linux/2019-07/159550.htm

 

linux
本文评论   查看全部评论 (0)
表情: 表情 姓名: 字数

       

评论声明
  • 尊重网上道德,遵守中华人民共和国的各项有关法律法规
  • 承担一切因您的行为而直接或间接导致的民事或刑事法律责任
  • 本站管理人员有权保留或删除其管辖留言中的任意内容
  • 本站有权在网站内转载或引用您的评论
  • 参与本评论即表明您已经阅读并接受上述条款