一、環境說明
虛拟軟體:vmware workstation 10
虛拟機配置:
rhel server release 6.5 (santiago) 2.6.32-431.el6.x86_64
cpu:4核心,記憶體:4g,硬碟:50g
二、前提條件:
1:将rhel6.5的iso檔案作為yum源
2:hadoop-2.2.0-src.tar.gz
3:安裝jdk 1.6.0_43
4:安裝并配置apache-maven 3.0.5(apache-maven-3.0.5-bin.tar.gz)
源碼中building.txt中要求使用3.0,從hadoop2.0版本以後使用maven編譯,之前用ant)
解壓并配置環境變量
mvn -version
5:安裝并配置apache-ant-1.9.3-bin.zip(下載下傳二進制版本的,這個需要編譯安裝findbugs)
ant -version
6:下載下傳并安裝cmake cmake-2.8.12.1,安裝指令如下:
tar -zxvf cmake-2.8.12.1.tar.gz
cd cmake-2.8.12.1
./bootstrap
make
make install
檢查安裝是否正确
cmake --version(如果能正确顯示版本号,則說明安裝正确)
7:下載下傳并安裝配置findbugs-2.0.2-source.zip
http://sourceforge.jp/projects/sfnet_findbugs/releases/
使用ant編譯安裝。如果不編譯安裝則編譯的時候會報
hadoop-common-project/hadoop-common/${env.findbugs_home}/src/xsl/default.xsl doesn’t exist. -> [help 1]
進入到解壓後的目錄,直接運作ant指令
如果不安裝,則在編譯時會報如下錯誤:
failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.6:run (site) on project hadoop-common: an ant buildexception has occured
8:安裝zlib-devel
預設情況下,系統沒有安裝zlib-devel
yum install zlib-devel
failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.6:run (make) on project hadoop-common
9: protobuf-2.5.0
yum install gcc-c++ (如果不安裝,則cmake configure失敗)
./configure
make
make check
make install
檢查安裝是否正确
protoc --version((如果能正确顯示版本号,則說明安裝正确)
三、hadoop2.2源碼編譯
1:進入hadoop2.2.0解壓後的源碼目錄
2:執行mvn指令編譯,此過程需要連接配接網絡,編譯的速度取決于你的網速
mvn clean package -pdist,native -dskiptests -dtar
2.1.create binary distribution without native code and without documentation:
$ mvn package -pdist -dskiptests -dtar
2.2.create binary distribution with native code and with documentation:
$ mvn package -pdist,native,docs -dskiptests -dtar
2.3.create source distribution:
$ mvn package -psrc -dskiptests
2.4.create source and binary distributions with native code and documentation:
$ mvn package -pdist,native,docs,src -dskiptests -dtar
2.5.create a local staging version of the website (in /tmp/hadoop-site)
$ mvn clean site; mvn site:stage -dstagingdirectory=/tmp/hadoop-site
3:編譯後的項目釋出版本在hadoop-2.2.0-src/hadoop-dist/target/目錄下
hadoop-2.2.0-src/hadoop-dist/target/hadoop-2.2.0/
四、安裝hadoop 單點僞分布式模式
1:配置ssh互信
ssh-keygen -t dsa (或行ssh-keygen -t rsa -p "" 加上-p ""參數隻需要一次回車就可以執行完畢。不加需要三次回車)
cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys
如果仍然需要輸入密碼,則執行如下指令
chmod 600 ~/.ssh/authorized_keys
2:将編譯後的hadoop-2.2.0-src/hadoop-dist/target/hadoop-2.2.0複制到/data/hadoop/目錄下
3:建議軟連結 ln -s hadoop-2.2.0 hadoop2
4: 在使用者的.bash_profile增加如下變量
export hadoop_home=/data/hadoop/hadoop2
export path=$path:$hadoop_home/bin
export path=$path:$hadoop_home/sbin
export hadoop_mapred_home=${hadoop_home}
export hadoop_common_home=${hadoop_home}
export hadoop_hdfs_home=${hadoop_home}
export yarn_home=${hadoop_home}
5:建議data.dir及namenode.dir目錄
mkdir hdfs
mkdir namenode
chmod -r 755 hdfs
6:修改hadoop-env.sh
export java_home=/usr/java/jdk1.6.0_43
7:修改core-site.xml,hdfs-site.xml,mapred-site.xml,yarn-site.xml,内容見附錄2
8:格式化hdfs檔案系統
執行指令 hadoop namenode -format
9:啟動hdfs,yarn
start-dfs.sh
start-yarn.sh
10:驗證啟動是否成功
jps
如果顯示如下6個程序,則啟動成功
53244 resourcemanager
53083 secondarynamenode
52928 datanode
53640 jps
52810 namenode
53348 nodemanager
五、運作自帶的wordcount例子
hadoop fs -mkdir /tmp
hadoop fs -mkdir /tmp/input
hadoop fs -put /usr/hadoop/test.txt /tmp/input
cd /data/hadoop/hadoop2/share/hadoop/mapreduce
hadoop jar hadoop-mapreduce-examples-2.2.0.jar wordcount /tmp/input /tmp/output
如果能正确運作,則hadoop安裝配置正确
六、附錄1:
設定的環境變量(/etc/profile,編輯後運作source /etc/profile/ 使配置生效)
#java set
export jre_home=/usr/java/jdk1.6.0_43/jre
export classpath=.:$java_home/lib/dt.jar:$java_home/lib/tools.jar
export path=$path:$java_home/bin
#maven set
export m2_home=/home/soft/maven
export path=$path:$m2_home/bin
#ant
export ant_home=/home/soft/apache-ant-1.9.3
export path=$path:$ant_home/bin
#findbugs
export findbugs_home=/home/soft/findbugs-2.0.2
export path=$path:$findbugs_home/bin
附錄2:core-site.xml,hdfs-site.xml,mapred-site.xml,yarn-site.xml的檔案内容
core-site.xml内容:
<configuration>
<property>
<name>fs.defaultfs</name>
<value>hdfs://vdata.kt:8020</value>
</property>
</configuration>
hdfs-site.xml内容:
<name>dfs.name.dir</name>
<value>/data/hadoop/namenode</value>
<name>dfs.data.dir</name>
<value>/data/hadoop/hdfs</value>
<name>dfs.replication</name>
<value>1</value>
</property>
<name>dfs.permissions</name>
<value>false</value>
mapred-site.xml内容:
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
yarn-site.xml内容:
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>