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鏃堕棿:2020-05-22 18:05鏉ユ簮:http://vitrailad.com 浣滆€?灏忛攱  渚垫潈涓炬姤
鏈€璇︾粏鐨勪吉鍒嗗竷妯″紡Hadoop瀹夎璁板綍 PDF 涓嬭浇
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鏈€璇︾粏鐨勪吉鍒嗗竷妯″紡Hadoop瀹夎璁板綍 PDF 涓嬭浇

鏈珯鏁寸悊涓嬭浇锛?/strong>
閾炬帴锛?a href="https://pan.baidu.com/s/1pxaCFgbs0SLbtQFHSh6GBQ" target="_blank">https://pan.baidu.com/s/1pxaCFgbs0SLbtQFHSh6GBQ 
鎻愬彇鐮侊細n3vc
 
鐩稿叧鎴浘锛?/strong>
 
涓昏鍐呭锛?/strong>

涓€銆?Hadoop 瀹夎锛堜吉鍒嗗竷寮忥級 
璇存槑锛氭搷浣滅郴缁?CentOS5.5
1. JDK 瀹夎
涓嬭浇锛?jdk-6u21-linux-i586.bin
mkdir /usr/java
2. 鍒涘缓 hadoop 鐢ㄦ埛
groupadd hadoop
useradd -d /hadoop -g hadoop -m hadoop
璁剧疆 hadoop 鐢ㄦ埛瀵嗙爜: passwd hadoop
3. 鐢熸垚 SSH 绉橀挜瀵?/div>
su – hadoop
ssh-keygen -t rsa
cp id_rsa.pub authorized_keys
鍒嗗竷寮忛儴缃诧紝蹇呴』鎶婂悇涓妭鐐圭殑 authorized_keys 鐨勫唴瀹逛簰鐩告嫹璐濆姞鍏ュ埌瀵规柟鐨勬鏂囦欢涓紝鐒跺悗灏卞彲浠ュ厤瀵嗙爜褰兼 ssh
杩炲叆锛屽叿浣撶敤鏂囦欢 cat 鎿嶄綔锛屾墍鏈夎妭鐐圭殑 authorized_keys锛屽嵆鍖呭惈浜嗗悇鑷妭鐐圭敓鎴愮殑 rsa.pub锛坅uthorized_keys锛夊唴瀹?/div>
鍚堝苟涓€涓?authorized_keys 鍚庢嫹璐濆埌鎵€鏈夎妭鐐?/div>
濡傛灉鏃犳硶杩炴帴
鍚姩 ssh 鏈嶅姟锛?/etc/init.d/sshd restart (status 鍙互鐪嬬姸鎬?
4. 瀹夎鍙婇厤缃?hadoop
瑙e帇 hadoop锛?/div>
閰嶇疆 hadoop-env.sh 鏂囦欢锛?hadoop/hadoop-0.20.2/conf 锛?/div>
閰嶇疆 core-site.xml 锛?hadoop/hadoop-0.20.2/conf 锛?/div>
<property>
<name>fs.default.name</name>
<value>hdfs://localhost:9000</value>
</property>
閰嶇疆 hdfs-site.xml锛?hadoop/hadoop-0.20.2/conf 锛?/div>
<property>
<name>dfs.data.dir</name>
<value>/hadoop/hadoop-0.20.2/hdfs/data</value>
</property>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
閰嶇疆 mapred-site.xml锛?hadoop/hadoop-0.20.2/conf 锛?/div>
<property>
<name>mapred.job.tracker</name>
<value>localhost:9001</value>
</property>
5. 鏍煎紡鍖栧垎甯冨紡鏂囦欢绯荤粺
./hadoop namenode –format
6. 鍚姩 hadoop 瀹堟姢杩涚▼
hadoop 鐘舵€佺洃鎺э細
1. http://192.168.1.128:50070/dfshealth.jsp 锛坣amenode 鑺傜偣锛?/div>
2. ./hadoop dfsadmin –report
3. http://192.168.1.128:50030/jobtracker.jsp 50030 绔彛锛岀洃鎺?jobtracker
鏇存崲 IP 闇€瑕佸仛浠€涔堬紵
濡傛灉 master 鎴?slave 鐨?IP 鎹簡锛岄渶瑕佸仛濡備笅鎿嶄綔锛?/div>
1銆?娓呯┖ Hadoop 涓存椂鐩綍 /home/hadoop/tmp
2銆?閲嶆柊鎵ц hadoop namenode –format 鏍煎紡鍖?HDFS銆?/div>
鍚庢灉锛孒DFS 涓婄殑鐩綍鏂囦欢浼氫涪澶?/div>
浜屻€?鍒嗗竷寮忔枃浠剁郴缁?HDFS 
鎶婃枃浠跺瓨鍌ㄥ埌 HDFS 绯荤粺
鍏堝垱寤轰竴涓?input 鐩綍鍜屼袱涓枃鏈枃浠讹細
-put 鍛戒护 锛屾妸鍒氭墠鍒涘缓鐨?Input 鐩綍涓嬬殑鎵€鏈夋枃浠跺姞杞藉埌 hdfs 鐨?in 鐩綍涓?/div>
杩愯浣滀笟锛氳繍琛?jar 鍖呴噷鐨?wordcount 绋嬪簭锛屽師濮嬫枃浠剁洰褰曞湪 in锛岃緭鍑虹粨鏋滃湪 out 鐩綍
bin/hadoop jar hadoop-0.20.2-examples.jar wordcount in out

 

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