Hadoop搭建

1、安裝虛擬機

VMware workstation

CentOS 鏡像

安裝Linux虛擬機：（在Win7上）

1）安裝VMwareWorkstations（可修改配置）

2）添加CentOS鏡像（啟動安裝 ->配置網路）

網路配置：NAT模式

網路重啟：service network restart

關閉系統：shutdown -h now

2、遠程連接

Xshell5

Xftp5

3、在Linux上搭建Hadoop集群

下載軟體

1. Jdk：http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

2. Hadoop包:http://apache.fayea.com/hadoop/common/hadoop-2.7.2/

步驟：

1、修改/etc/hosts

2、配置JDK

安裝：rpm -ivh jdk-8u101-linux-x64.rpm

vi /etc/profileJAVA_HOMEsource /etc/profilejava -version

3、配置SSH（免密碼登錄）

ssh-keygen -t rsacat xxx.pub >> authorized_keyschmod 644 authorized_keysssh IP/HOSTNAME

4、安裝及配置Hadoop

tar zxf hadoop-2.7.2.tar.gzcd /opt/hadoop-2.7.2/etc/hadoop/

core-site.xml

<property> <name>fs.default.name</name> <value>hdfs://bigdata:9000</value> </property> <property> <name>hadoop.tmp.dir</name> <value>/opt/hadoop-2.7.2/current/tmp</value> </property> <property> <name>fs.trash.interval</name> <value>4320</value> </property>

hdfs-site.xml

<property> <name>dfs.namenode.name.dir</name> <value>/opt/hadoop-2.7.2/current/dfs/name</value> </property> <property> <name>dfs.datanode.data.dir</name> <value>/opt/hadoop-2.7.2/current/data</value> </property> <property> <name>dfs.replication</name> <value>1</value> </property> <property> <name>dfs.webhdfs.enabled</name> <value>true</value> </property> <property> <name>dfs.permissions.superusergroup</name> <value>staff</value> </property> <property> <name>dfs.permissions.enabled</name> <value>false</value> </property>

yarn-site.xml

<property> <name>yarn.resourcemanager.hostname</name> <value>bigdata</value> </property> <property> <name>yarn.nodemanager.aux-services</name> <value>mapreduce_shuffle</value> </property> <property> <name>yarn.nodemanager.aux-services.mapreduce.shuffle.class</name> <value>org.apache.hadoop.mapred.ShuffleHandler</value> </property> <property> <name>yarn.resourcemanager.address</name> <value>bigdata:18040</value> </property><property> <name>yarn.resourcemanager.scheduler.address</name> <value>bigdata:18030</value> </property> <property> <name>yarn.resourcemanager.resource-tracker.address</name> <value>bigdata:18025</value> </property> <property> <name>yarn.resourcemanager.admin.address</name> <value>bigdata:18141</value> </property><property> <name>yarn.resourcemanager.webapp.address</name> <value>bigdata:18088</value> </property><property> <name>yarn.log-aggregation-enable</name> <value>true</value> </property><property> <name>yarn.log-aggregation.retain-seconds</name> <value>86400</value> </property><property> <name>yarn.log-aggregation.retain-check-interval-seconds</name> <value>86400</value> </property><property> <name>yarn.nodemanager.remote-app-log-dir</name> <value>/tmp/logs</value> </property><property> <name>yarn.nodemanager.remote-app-log-dir-suffix</name> <value>logs</value> </property>

mapred-site.xml

<property> <name>mapreduce.framework.name</name> <value>yarn</value></property><property> <name>mapreduce.jobtracker.http.address</name> <value>bigdata:50030</value></property><property> <name>mapreduce.jobhisotry.address</name> <value>bigdata:10020</value></property><property> <name>mapreduce.jobhistory.webapp.address</name> <value>bigdata:19888</value></property><property> <name>mapreduce.jobhistory.done-dir</name> <value>/jobhistory/done</value></property><property> <name>mapreduce.intermediate-done-dir</name> <value>/jobhisotry/done_intermediate</value></property><property> <name>mapreduce.job.ubertask.enable</name> <value>true</value></property>

slaves

bigdata

hadoop-env.sh

JAVA_HOME

5、格式化HDFS

hdfs namenode -format

『16/09/0403:07:30 INFO common.Storage: Storage directory /opt/hadoop-2.7.2/current/dfs/namehas been successfully formatted.』

6、啟動Hadoop集群

/opt/hadoop-2.7.2/sbin/start-all.sh

7、驗證Hadoop集群

1）jps

2)

關閉防火牆 或者 在防火牆的規則中開放這些埠

hdfs http://bigdata:50070

yarn http://bigdata:18088