第一步：安裝Hadoop集群

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1、搭建環(huán)境所需介質準備

   Enterprise-R5-U4-Server-x86_64-dvd.iso

   hadoop-1.1.1.tar.gz

   jdk-6u26-linux-x64-rpm.bin

2、創(chuàng)建5個節(jié)點的虛擬機

   192.168.0.202  hd202  #NameNode

   192.168.0.203  hd203  #SecondaryNameNode

   192.168.0.204  hd204  #DataNode

   192.168.0.205  hd205  #DataNode

   192.168.0.206  hd206  #DataNode

   虛擬機安裝過程中，需要將sshd服務安裝上。如果磁盤空間允許的話，盡可能的將系統包安裝齊全了。

3、在五個節(jié)點的虛擬機中都安裝Jdk(以root用戶安裝)

   [root@hd202 ~]# mkdir /usr/java

   [root@hd202 ~]# mv jdk-6u26-linux-x64-rpm.bin /usr/java

   [root@hd202 ~]# cd /usr/java

   [root@hd202 java]# chmod 744 jdk-6u26-linux-x64-rpm.bin

   [root@hd202 java]# ./jdk-6u26-linux-x64-rpm.bin

   [root@hd202 java]# ln -s jdk1.6.0_26 default

4、創(chuàng)建hadoop管理用戶(5臺虛擬機中都要創(chuàng)建用戶)

   [root@hd202 ~]# useradd cbcloud   #在沒有先創(chuàng)建用戶組的情況下，直接新增用戶，用戶默認所屬的組和用戶名相同。即cbcloud.cbcloud

   [root@hd202 ~]# passwd cbcloud    #修改用戶cbcloud的密碼，測試環(huán)境可設置為111111

5、編輯/etc/hosts文件(使用root用戶分別在五臺虛擬機上都編輯)

   # Do not remove the following line, or various programs

   # that require network functionality will fail.

   127.0.0.1       localhost.localdomain localhost

   ::1             localhost6.localdomain6 localhost6

   192.168.0.202   hd202

   192.168.0.203   hd203

   192.168.0.204   hd204

   192.168.0.205   hd205

   192.168.0.206   hd206

6、編輯/etc/sysconfig/network文件(使用root用戶分別在五臺虛擬機上都編輯)

   NETWORKING=yes

   NETWORKING_IPV6=no

   HOSTNAME=hd202      #主機名(192.168.0.203上應該改為hd203，以此類推，五臺機器都要修改為相應的名稱)

   GATEWAY=192.168.0.1

   

7、在五臺機器之間配置用戶等價性(以前面創(chuàng)建的用戶cbcloud登陸進行操作)

   [cbcloud@hd202 ~]$ mkdir .ssh

   [cbcloud@hd202 ~]$ chmod 700 .ssh

   [cbcloud@hd202 ~]$ ssh-keygen -t rsa

   [cbcloud@hd202 ~]$ ssh-keygen -t dsa

   [cbcloud@hd202 ~]$ cat ~/.ssh/id_rsa.pub > ~/.ssh/authorized_keys

   [cbcloud@hd202 ~]$ cat ~/.ssh/id_dsa.pub > ~/.ssh/authorized_keys

   [cbcloud@hd203 ~]$ mkdir .ssh

   [cbcloud@hd203 ~]$ chmod 700 .ssh

   [cbcloud@hd203 ~]$ ssh-keygen -t rsa

   [cbcloud@hd203 ~]$ ssh-keygen -t dsa

   [cbcloud@hd203 ~]$ cat ~/.ssh/id_rsa.pub > ~/.ssh/authorized_keys

   [cbcloud@hd203 ~]$ cat ~/.ssh/id_dsa.pub > ~/.ssh/authorized_keys

   [cbcloud@hd204 ~]$ mkdir .ssh

   [cbcloud@hd204 ~]$ chmod 700 .ssh

   [cbcloud@hd204 ~]$ ssh-keygen -t rsa

   [cbcloud@hd204 ~]$ ssh-keygen -t dsa

   [cbcloud@hd204 ~]$ cat ~/.ssh/id_rsa.pub > ~/.ssh/authorized_keys

   [cbcloud@hd204 ~]$ cat ~/.ssh/id_dsa.pub > ~/.ssh/authorized_keys

   [cbcloud@hd205 ~]$ mkdir .ssh

   [cbcloud@hd205 ~]$ chmod 700 .ssh

   [cbcloud@hd205 ~]$ ssh-keygen -t rsa

   [cbcloud@hd205 ~]$ ssh-keygen -t dsa

   [cbcloud@hd205 ~]$ cat ~/.ssh/id_rsa.pub > ~/.ssh/authorized_keys

   [cbcloud@hd205 ~]$ cat ~/.ssh/id_dsa.pub > ~/.ssh/authorized_keys

   [cbcloud@hd206 ~]$ mkdir .ssh

   [cbcloud@hd206 ~]$ chmod 700 .ssh

   [cbcloud@hd206 ~]$ ssh-keygen -t rsa

   [cbcloud@hd206 ~]$ ssh-keygen -t dsa

   [cbcloud@hd206 ~]$ cat ~/.ssh/id_rsa.pub > ~/.ssh/authorized_keys

   [cbcloud@hd206 ~]$ cat ~/.ssh/id_dsa.pub > ~/.ssh/authorized_keys

   

   [cbcloud@hd202 ~]$ cd .ssh

   [cbcloud@hd202 .ssh]$ scp authorized_keys  cbcloud@hd203:/home/cbcloud/.ssh/authorized_keys2  #將hd202機器上的authorized_keys文件遠程復制到hd203上的/home/cbcloud/.ssh/目錄下，并重命名為authorized_keys2

   [cbcloud@hd203 ~]$ cd .ssh

   [cbcloud@hd203 ~]$ cat authorized_keys2 > authorized_keys  #也就是將hd202上的authorized_keys中的內容合并到hd203機器上的authorized_keys文件中。

    然后再將合并后的authorized_keys文件復制到hd204上，與204上的authorized_keys文件合并，依次類推，最后將5個節(jié)點的authorized_keys文件的內容都合并在一起以后，再將包含有五個節(jié)點密鑰內容的authorized_keys文件，覆蓋到其余4個節(jié)點上。

    注意：authorized_keys文件的權限必須為644，否則用戶等價性會失效。  

 

    在五個節(jié)點上都執(zhí)行以下命令：

   [cbcloud@hd202 ~]$ cd .ssh

   [cbcloud@hd202 ~]$ chmod 644 authorized_keys

8、開始安裝hadoop集群

8.1 建立目錄 (在五臺虛擬機上都執(zhí)行以下命令_使用root用戶)

    [root@hd202 ~]# mkdir /home/cbcloud/hdtmp

    [root@hd202 ~]# mkdir /home/cbcloud/hddata

    [root@hd202 ~]# mkdir /home/cbcloud/hdconf

    [root@hd202 ~]# chown -R cbcloud:cbcloud /home/cbcloud/hdtmp

    [root@hd202 ~]# chown -R cbcloud:cbcloud /home/cbcloud/hddata

    [root@hd202 ~]# chown -R cbcloud:cbcloud /home/cbcloud/hdconf

    [root@hd202 ~]# chmod -R 755 /home/cbcloud/hddata  #切記，hddata是用于DataNode節(jié)點存放數據用的，hadoop嚴格歸定，這個目錄的權限必須為755。如果不是這個權限值，則在后面啟動DataNode時，將會因為權限不對，而不能成功啟動DataNode節(jié)點。

8.2 解壓hadoop-1.1.1.tar.gz到/home/cbcloud目錄下(只需要在hd202一臺機器上執(zhí)行即可)

    [root@hd202 ~]# mv hadoop-1.1.1.tar.gz /home/cbcloud

    [root@hd202 ~]# cd /home/cbcloud

    [root@hd202 cbcloud]# tar -xzvf hadoop-1.1.1.tar.gz

    [root@hd202 cbcloud]# mv hadoop-1.1.1 hadoop

    [root@hd202 cbcloud]# chown -R cbcloud.cbcloud hadoop/

8.3 配置系統環(huán)境變量/etc/profile(在五臺虛擬機上都執(zhí)行_使用root用戶)

    [root@hd202 ~]# vi /etc/profile

    在文件尾部加入以下內容

    export JAVA_HOME=/usr/java/default

    export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib

    export PATH=$JAVA_HOME/bin:$JAVA_HOME/lib:$JAVA_HOME/jre/bin:$PATH:$HOME/bin

    export HADOOP_HOME=/home/cbcloud/hadoop

    export HADOOP_DEV_HOME=/home/cbcloud/hadoop 

    export HADOOP_COMMON_HOME=/home/cbcloud/hadoop 

    export HADOOP_HDFS_HOME=/home/cbcloud/hadoop 

    export HADOOP_CONF_DIR=/home/cbcloud/hdconf

    export HADOOP_HOME_WARN_SUPPRESS=1

    export PATH=$PATH:$HADOOP_HOME/bin

    export CLASSPATH=$CLASSPATH:$HADOOP_HOME/lib  

8.4 配置用戶環(huán)境變量

    [cbcloud@hd202 ~]$ vi .bash_profile

    在文件尾部加入以下內容

    export JAVA_HOME=/usr/java/default

    export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib

    export PATH=$JAVA_HOME/bin:$JAVA_HOME/lib:$JAVA_HOME/jre/bin:$PATH:$HOME/bin

    export HADOOP_HOME=/home/cbcloud/hadoop

    export HADOOP_DEV_HOME=/home/cbcloud/hadoop 

    export HADOOP_COMMON_HOME=/home/cbcloud/hadoop 

    export HADOOP_HDFS_HOME=/home/cbcloud/hadoop 

    export HADOOP_CONF_DIR=/home/cbcloud/hdconf

    export HADOOP_HOME_WARN_SUPPRESS=1

    export PATH=$PATH:$HADOOP_HOME/bin

    export CLASSPATH=$CLASSPATH:$HADOOP_HOME/lib  

8.5 修改hadoop配置文件(使用cbcloud用戶操作，并且只需要在hd202一臺機器上操作) 

    [cbcloud@hd202 ~]$ cp $HADOOP_HOME/conf/*   $HADOOP_CONF_DIR/*  

    #從上一步的環(huán)境變量紅色那一行可以看到，目前hadoop使用的配置文件應該位于/home/cbcloud/hdconf目錄中，所以需要將/home/cbcloud/hadoop/conf目錄下的所有配置文件都復制一份到/home/cbcloud/hdconf目錄下。

8.5.1  編輯core-site.xml配置文件

    [cbcloud@hd202 ~]$ cd /home/cbcloud/hdconf

    [cbcloud@hd202 hdconf]$ vi core-site.xml

    <?xml version="1.0"?>

    <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

    <!-- Put site-specific property overrides in this file. -->

    <configuration>

      <property>

        <name>fs.default.name</name>

        <value>hdfs://hd202:9000</value>

      </property>

      <property>

        <name>hadoop.tmp.dir</name>

        <value>/home/cbcloud/hdtmp</value>

      </property>

    </configuration>

8.5.2 編輯hdfs-site.xml

    [cbcloud@hd202 hdconf]$ vi hdfs-site.xml

    <?xml version="1.0"?>

    <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

    <!-- Put site-specific property overrides in this file. -->

    <configuration>

      <property>

        <name>dfs.data.dir</name>

        <value>/home/cbcloud/hddata</value>

      </property>

      <property>

        <name>dfs.replication</name>

        <value>3</value>

      </property>

    </configuration>

8.5.3 編輯mapred-site.xml

    [cbcloud@hd202 hdconf]$ vi mapred-site.xml

    <?xml version="1.0"?>

    <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

    <!-- Put site-specific property overrides in this file. -->

    <configuration>

      <property>

        <name>mapred.job.tracker</name>

        <value>hd202:9001</value>

      </property> 

    </configuration>  

8.5.4 編輯masters

    [cbcloud@hd202 hdconf]$ vi masters

    加入以下內容

    hd203   # 因為hd203為SecondaryNameNode，所以在此只需要配置hd203即可，不需要配置hd202

8.5.5 編輯slaves

    [cbcloud@hd202 hdconf]$ vi slaves

    加入以下內容

    hd204

    hd205

    hd206

8.6 復制/home/cbcloud/hadoop目錄和/home/cbcloud/hdconf目錄到其他四臺虛擬機上

    [cbcloud@hd202 hdconf]$ scp -r /home/cbcloud/hadoop hd203:/home/cbcloud  #由于前面配置了用戶等價性，因此這條命令執(zhí)行時不再需要密碼

    [cbcloud@hd202 hdconf]$ scp -r /home/cbcloud/hadoop hd204:/home/cbcloud

    [cbcloud@hd202 hdconf]$ scp -r /home/cbcloud/hadoop hd205:/home/cbcloud

    [cbcloud@hd202 hdconf]$ scp -r /home/cbcloud/hadoop hd206:/home/cbcloud

    [cbcloud@hd202 hdconf]$ scp -r /home/cbcloud/hdconf hd203:/home/cbcloud

    [cbcloud@hd202 hdconf]$ scp -r /home/cbcloud/hdconf hd204:/home/cbcloud

    [cbcloud@hd202 hdconf]$ scp -r /home/cbcloud/hdconf hd205:/home/cbcloud

    [cbcloud@hd202 hdconf]$ scp -r /home/cbcloud/hdconf hd206:/home/cbcloud   

8.7 在NameNode(hd202)上執(zhí)行命令格式化命令空間

    [cbcloud@hd202 ~]$ cd $HADOOP_HOME/bin

    [cbcloud@hd202 bin]$ hadoop namenode -format

    如果控制臺打印的信息中沒有ERROR之灰的信息，表示格式化命名空間命令就執(zhí)行成功了。

8.8 啟動hadoop

    [cbcloud@hd202 ~]$ cd $HADOOP_HOME/bin

    [cbcloud@hd202 bin]$ ./start-dfs.sh

    starting namenode, logging to /home/cbcloud/hadoop/libexec/../logs/hadoop-cbcloud-namenode-hd202.out

    hd204: starting datanode, logging to /home/cbcloud/hadoop/libexec/../logs/hadoop-cbcloud-datanode-hd204.out

    hd205: starting datanode, logging to /home/cbcloud/hadoop/libexec/../logs/hadoop-cbcloud-datanode-hd205.out

    hd206: starting datanode, logging to /home/cbcloud/hadoop/libexec/../logs/hadoop-cbcloud-datanode-hd206.out

    hd203: starting secondarynamenode, logging to /home/cbcloud/hadoop/libexec/../logs/hadoop-cbcloud-secondarynamenode-hd203.out 

8.9 啟動mapred

    [cbcloud@hd202 bin]$ ./start-mapred.sh 

    starting jobtracker, logging to /home/cbcloud/hadoop/libexec/../logs/hadoop-cbcloud-jobtracker-hd202.out

    hd204: starting tasktracker, logging to /home/cbcloud/hadoop/libexec/../logs/hadoop-cbcloud-tasktracker-hd204.out

    hd205: starting tasktracker, logging to /home/cbcloud/hadoop/libexec/../logs/hadoop-cbcloud-tasktracker-hd205.out

    hd206: starting tasktracker, logging to /home/cbcloud/hadoop/libexec/../logs/hadoop-cbcloud-tasktracker-hd206.out 

8.10 查看進程

    [cbcloud@hd202 bin]$ jps

    4335 JobTracker

    4460 Jps

    4153 NameNode 

    [cbcloud@hd203 hdconf]$ jps

    1142 Jps

    1078 SecondaryNameNode

    [cbcloud@hd204 hdconf]$ jps

    1783 Jps

    1575 DataNode

    1706 TaskTracker

    [cbcloud@hd205 hdconf]$ jps

    1669 Jps

    1461 DataNode

    1590 TaskTracker

    [cbcloud@hd206 hdconf]$ jps

    1494 DataNode

    1614 TaskTracker

    1694 Jps

8.11 查看集群狀態(tài)

    [cbcloud@hd202 bin]$ hadoop dfsadmin -report

    Configured Capacity: 27702829056 (25.8 GB)

    Present Capacity: 13044953088 (12.15 GB)

    DFS Remaining: 13044830208 (12.15 GB)

    DFS Used: 122880 (120 KB)

    DFS Used%: 0%

    Under replicated blocks: 0

    Blocks with corrupt replicas: 0

    Missing blocks: 0

    -------------------------------------------------

    Datanodes available: 3 (3 total, 0 dead)

    Name: 192.168.0.205:50010

    Decommission Status : Normal

    Configured Capacity: 9234276352 (8.6 GB)

    DFS Used: 40960 (40 KB)

    Non DFS Used: 4885942272 (4.55 GB)

    DFS Remaining: 4348293120(4.05 GB)

    DFS Used%: 0%

    DFS Remaining%: 47.09%

    Last contact: Wed Jan 30 18:02:17 CST 2013

    Name: 192.168.0.206:50010

    Decommission Status : Normal

    Configured Capacity: 9234276352 (8.6 GB)

    DFS Used: 40960 (40 KB)

    Non DFS Used: 4885946368 (4.55 GB)

    DFS Remaining: 4348289024(4.05 GB)

    DFS Used%: 0%

    DFS Remaining%: 47.09%

    Last contact: Wed Jan 30 18:02:17 CST 2013

    Name: 192.168.0.204:50010

    Decommission Status : Normal

    Configured Capacity: 9234276352 (8.6 GB)

    DFS Used: 40960 (40 KB)

    Non DFS Used: 4885987328 (4.55 GB)

    DFS Remaining: 4348248064(4.05 GB)

    DFS Used%: 0%

    DFS Remaining%: 47.09%

    Last contact: Wed Jan 30 18:02:17 CST 2013

注意：如果報錯“INFO ipc.Client: Retrying connect to server”,是因為core-site.xml失效的原因。停止，重啟hadoop后，格式化namenode即可。

另外，每次啟動VM都要關閉防火墻。

8.12 通過WEB瀏覽器查看Hadoop運行情況

http://192.168.1.202:50070 查看Hadoop運行情況

8.13 通過WEB瀏覽器查看Job運行情況

http://192.168.0.202:50030 查看Job執(zhí)行情況

9、列出HDFS文件系統中存在的目錄情況

[cbcloud@hd202 logs]$ hadoop dfs -ls

ls: Cannot access .: No such file or directory.

上面的錯誤是因為被訪問目錄為空所致。

可以改為執(zhí)行hadoop fs -ls /

[cbcloud@hd202 logs]$ hadoop fs -ls /

Found 1 items

drwxr-xr-x   - cbcloud supergroup          0 2013-01-30 15:52 /home

可以看到有一條空結果

執(zhí)行hadoop fs -mkdir hello  #hello為文件夾的名字

[cbcloud@hd202 logs]$ hadoop fs -mkdir hello

[cbcloud@hd202 logs]$ hadoop fs -ls

Found 1 items

drwxr-xr-x   - cbcloud supergroup          0 2013-01-30 21:16 /user/cbcloud/hello

10、HDFS使用測試

[cbcloud@hd202 logs]$ hadoop dfs -rmr hello

Deleted hdfs://hd202:9000/user/cbcloud/hello    #刪除前面創(chuàng)建的文件夾

[cbcloud@hd202 logs]$ hadoop dfs -mkdir input

[cbcloud@hd202 logs]$ hadoop dfs -ls

Found 1 items

drwxr-xr-x   - cbcloud supergroup          0 2013-01-30 21:18 /user/cbcloud/input

11、運行Hadoop自帶框架的wordcount示例

11.1、建立數據文件

在主機192.168.0.202虛擬機中建立兩個文件input1和input2

[cbcloud@hd202 hadoop]$ echo "Hello Hadoop in input1" > input1

[cbcloud@hd202 hadoop]$ echo "Hello Hadoop in input2" > input2

11.2、發(fā)布數據文件至Hadoop集群上

1、在HDFS中建立一個input目錄

[cbcloud@hd202 hadoop]$ hadoop dfs -mkdir input

2、將文件input1和input2拷貝到HDFS的input目錄下

[cbcloud@hd202 hadoop]$ hadoop dfs -copyFromLocal /home/cbcloud/hadoop/input* input

3、查看input目錄下有沒有復制成功

[cbcloud@hd202 hadoop]$ hadoop dfs -ls input

Found 2 items

-rw-r--r--   3 cbcloud supergroup         23 2013-01-30 21:28 /user/cbcloud/input/input1

-rw-r--r--   3 cbcloud supergroup         23 2013-01-30 21:28 /user/cbcloud/input/input2

11.3、執(zhí)行wordcount程序  #確保HDFS上沒有output目錄，查看結果

[cbcloud@hd202 hadoop]$ hadoop jar hadoop-examples-1.1.1.jar wordcount input output

13/01/30 21:33:05 INFO input.FileInputFormat: Total input paths to process : 2

13/01/30 21:33:05 INFO util.NativeCodeLoader: Loaded the native-hadoop library

13/01/30 21:33:05 WARN snappy.LoadSnappy: Snappy native library not loaded

13/01/30 21:33:07 INFO mapred.JobClient: Running job: job_201301302110_0001

13/01/30 21:33:08 INFO mapred.JobClient:  map 0% reduce 0%

13/01/30 21:33:32 INFO mapred.JobClient:  map 50% reduce 0%

13/01/30 21:33:33 INFO mapred.JobClient:  map 100% reduce 0%

13/01/30 21:33:46 INFO mapred.JobClient:  map 100% reduce 100%

13/01/30 21:33:53 INFO mapred.JobClient: Job complete: job_201301302110_0001

13/01/30 21:33:53 INFO mapred.JobClient: Counters: 29

13/01/30 21:33:53 INFO mapred.JobClient:   Job Counters 

13/01/30 21:33:53 INFO mapred.JobClient:     Launched reduce tasks=1

13/01/30 21:33:53 INFO mapred.JobClient:     SLOTS_MILLIS_MAPS=29766

13/01/30 21:33:53 INFO mapred.JobClient:     Total time spent by all reduces waiting after reserving slots (ms)=0

13/01/30 21:33:53 INFO mapred.JobClient:     Total time spent by all maps waiting after reserving slots (ms)=0

13/01/30 21:33:53 INFO mapred.JobClient:     Launched map tasks=2

13/01/30 21:33:53 INFO mapred.JobClient:     Data-local map tasks=2

13/01/30 21:33:53 INFO mapred.JobClient:     SLOTS_MILLIS_REDUCES=13784

13/01/30 21:33:53 INFO mapred.JobClient:     File Output Format Counters 

13/01/30 21:33:53 INFO mapred.JobClient:     Bytes Written=40

13/01/30 21:33:53 INFO mapred.JobClient:     FileSystemCounters

13/01/30 21:33:53 INFO mapred.JobClient:     FILE_BYTES_READ=100

13/01/30 21:33:53 INFO mapred.JobClient:     HDFS_BYTES_READ=262

13/01/30 21:33:53 INFO mapred.JobClient:     FILE_BYTES_WRITTEN=71911

13/01/30 21:33:53 INFO mapred.JobClient:     HDFS_BYTES_WRITTEN=40

13/01/30 21:33:53 INFO mapred.JobClient:     File Input Format Counters 

13/01/30 21:33:53 INFO mapred.JobClient:     Bytes Read=46

13/01/30 21:33:53 INFO mapred.JobClient:     Map-Reduce Framework

13/01/30 21:33:53 INFO mapred.JobClient:     Map output materialized bytes=106

13/01/30 21:33:53 INFO mapred.JobClient:     Map input records=2

13/01/30 21:33:53 INFO mapred.JobClient:     Reduce shuffle bytes=106

13/01/30 21:33:53 INFO mapred.JobClient:     Spilled Records=16

13/01/30 21:33:53 INFO mapred.JobClient:     Map output bytes=78

13/01/30 21:33:53 INFO mapred.JobClient:     CPU time spent (ms)=5500

13/01/30 21:33:53 INFO mapred.JobClient:     Total committed heap usage (bytes)=336928768

13/01/30 21:33:53 INFO mapred.JobClient:     Combine input records=8

13/01/30 21:33:53 INFO mapred.JobClient:     SPLIT_RAW_BYTES=216

13/01/30 21:33:53 INFO mapred.JobClient:     Reduce input records=8

13/01/30 21:33:53 INFO mapred.JobClient:     Reduce input groups=5

13/01/30 21:33:53 INFO mapred.JobClient:     Combine output records=8

13/01/30 21:33:53 INFO mapred.JobClient:     Physical memory (bytes) snapshot=417046528

13/01/30 21:33:53 INFO mapred.JobClient:     Reduce output records=5

13/01/30 21:33:53 INFO mapred.JobClient:     Virtual memory (bytes) snapshot=1612316672

13/01/30 21:33:53 INFO mapred.JobClient:     Map output records=8

    

   

[cbcloud@hd202 hadoop]$ hadoop dfs -ls output

Found 2 items

-rw-r--r--   3 cbcloud supergroup          0 2013-01-30 21:33 /user/cbcloud/output/_SUCCESS

-rw-r--r--   3 cbcloud supergroup         40 2013-01-30 21:33 /user/cbcloud/output/part-r-00000

[cbcloud@hd202 hadoop]$ hadoop dfs -cat output/part-r-00000

Hadoop  2

Hello   2

in      2

input1  1

input2  1

    

第二步：搭建Zookeeper集群環(huán)境

上一篇關于Hadoop1.1.1集群安裝記錄中已經詳細記錄了在Oracle Linux 5.4 64bit上搭建Hadoop集群的方法。現在接著上一篇的內容，進一步安裝Zookeeper和HBASE

1、安裝zookeeper (在hd202上安裝)

1.1、準備安裝介質zookeeper-3.4.5.tar.gz

1.2、使用cbcloud用戶將介質上傳到hd202虛擬機上的/home/cbcloud/目錄下面

1.3、解壓縮zookeeper-3.4.5.tar.gz

[cbcloud@hd202 ~]$ tar zxvf zookeeper-3.4.5.tar.gz

1.4、在hd204、hd205、hd206三臺機器上創(chuàng)建目錄

[cbcloud@hd204 ~]$ mkdir /home/cbcloud/zookeeperdata

[cbcloud@hd205 ~]$ mkdir /home/cbcloud/zookeeperdata

[cbcloud@hd206 ~]$ mkdir /home/cbcloud/zookeeperdata

1.5、在hd202上執(zhí)行以下內容

[cbcloud@hd202 ~]$ mv zookeeper-3.4.5 zookeeper

[cbcloud@hd202 ~]$ cd zookeeper/conf

[cbcloud@hd202 ~]$ mv zoo_sample.cfg zoo.cfg

[cbcloud@hd202 ~]$ vi zoo.cfg

# The number of milliseconds of each tick

tickTime=2000

# The number of ticks that the initial

# synchronization phase can take

initLimit=10

# The number of ticks that can pass between

# sending a request and getting an acknowledgement

syncLimit=5

# the directory where the snapshot is stored.

# do not use /tmp for storage, /tmp here is just

# example sakes.

dataDir=/home/cbcloud/zookeeperdata

# the port at which the clients will connect

clientPort=2181

server.1=hd204:2888:3888

server.2=hd205:2888:3888

server.3=hd206:2888:3888

#

# Be sure to read the maintenance section of the

# administrator guide before turning on autopurge.

#

# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance

#

# The number of snapshots to retain in dataDir

#autopurge.snapRetainCount=3

# Purge task interval in hours

# Set to "0" to disable auto purge feature

#autopurge.purgeInterval=1

1.6、將zookeeper文件夾復制到hd204、hd205、hd206三臺虛擬機上

[cbcloud@hd202 ~]$ scp -r zookeeper hd204:/home/cbcloud/

[cbcloud@hd202 ~]$ scp -r zookeeper hd205:/home/cbcloud/

[cbcloud@hd202 ~]$ scp -r zookeeper hd206:/home/cbcloud/

1.7、在hd204、hd205、hd206三臺虛擬機的/home/cbcloud/zookeeperdata目錄下新建一個myid文件，并依次插入數字1、2、3

[cbcloud@hd204 ~]$ cd zookeeperdata

[cbcloud@hd204 zookeeperdata]$ touch myid

[cbcloud@hd204 zookeeperdata]$ vi myid

加入以下內容

1          #與前面配置文件中的server.1=hd204:2888:3888的編號相對應

[cbcloud@hd205 ~]$ cd zookeeperdata

[cbcloud@hd205 zookeeperdata]$ touch myid

[cbcloud@hd205 zookeeperdata]$ vi myid

加入以下內容

2          #與前面配置文件中的server.2=hd205:2888:3888的編號相對應

[cbcloud@hd206 ~]$ cd zookeeperdata

[cbcloud@hd206 zookeeperdata]$ touch myid

[cbcloud@hd206 zookeeperdata]$ vi myid

加入以下內容

3          #與前面配置文件中的server.3=hd206:2888:3888的編號相對應

1.8、啟動zookeeper，在hd204、hd205、hd206機器上的/home/cbcloud/zookeeper/bin目錄下執(zhí)行zkServer.sh start

[cbcloud@hd204 ~]$ cd zookeeper

[cbcloud@hd204 zookeeper]$ cd bin

[cbcloud@hd204 bin]$ ./zkServer.sh start

JMX enabled by default

Using config: /home/cbcloud/zookeeper/bin/../conf/zoo.cfg

Starting zookeeper ... STARTED

[cbcloud@hd205 ~]$ cd zookeeper

[cbcloud@hd205 zookeeper]$ cd bin

[cbcloud@hd205 bin]$ ./zkServer.sh start

JMX enabled by default

Using config: /home/cbcloud/zookeeper/bin/../conf/zoo.cfg

Starting zookeeper ... STARTED

[cbcloud@hd206 ~]$ cd zookeeper

[cbcloud@hd206 zookeeper]$ cd bin

[cbcloud@hd206 bin]$ ./zkServer.sh start

JMX enabled by default

Using config: /home/cbcloud/zookeeper/bin/../conf/zoo.cfg

Starting zookeeper ... STARTED

1.9 查看zookeeper的進程狀態(tài)

[cbcloud@hd204 bin]$ ./zkServer.sh status

JMX enabled by default

Using config: /home/cbcloud/zookeeper/bin/../conf/zoo.cfg

Mode: follower   #從此模式可以看出，hd204當前為跟隨者模式

[cbcloud@hd205 bin]$ ./zkServer.sh status

JMX enabled by default

Using config: /home/cbcloud/zookeeper/bin/../conf/zoo.cfg

Mode: leader  #從此模式可以看出，hd204當前為領導模式

[cbcloud@hd206 bin]$ ./zkServer.sh status

JMX enabled by default

Using config: /home/cbcloud/zookeeper/bin/../conf/zoo.cfg

Mode: follower   #從此模式可以看出，hd206當前為跟隨者模式

2、查看 zookeeper的進程詳細狀態(tài)

[cbcloud@hd204 bin]$ echo stat |nc localhost 2181

Zookeeper version: 3.4.5-1392090, built on 09/30/2012 17:52 GMT

Clients:

 /127.0.0.1:41205[0](queued=0,recved=1,sent=0)

Latency min/avg/max: 0/0/0

Received: 2

Sent: 1

Connections: 1

Outstanding: 0

Zxid: 0x0

Mode: follower

Node count: 4

[cbcloud@hd205 bin]$ echo stat |nc localhost 2181

Zookeeper version: 3.4.5-1392090, built on 09/30/2012 17:52 GMT

Clients:

 /127.0.0.1:38712[0](queued=0,recved=1,sent=0)

Latency min/avg/max: 0/0/0

Received: 2

Sent: 1

Connections: 1

Outstanding: 0

Zxid: 0x100000000

Mode: leader

Node count: 4

[cbcloud@hd206 bin]$ echo stat |nc localhost 2181

Zookeeper version: 3.4.5-1392090, built on 09/30/2012 17:52 GMT

Clients:

 /127.0.0.1:39268[0](queued=0,recved=1,sent=0)

Latency min/avg/max: 0/0/0

Received: 2

Sent: 1

Connections: 1

Outstanding: 0

Zxid: 0x100000000

Mode: follower

Node count: 4

第三步：搭建HBase集群

1、準備安裝介質  hbase-0.94.4.tar.gz

2、使用用戶cbcloud將安裝介質上傳到hd202虛擬機上的/home/cbcloud/目錄下

3、使用cbcloud用戶登陸到hd202虛擬機上，解壓縮hbase-0.94.4.tar.gz

[cbcloud@hd202 ~]$ tar zxvf hbase-0.94.4.tar.gz

[cbcloud@hd202 ~]$ mv hbase-0.94.4 hbas

4、在五臺虛擬機上都創(chuàng)建hbase的配置文件目錄hbconf (使用cbcloud用戶操作)

[cbcloud@hd202 ~]$ mkdir /home/cbcloud/hbconf

[cbcloud@hd203 ~]$ mkdir /home/cbcloud/hbconf

[cbcloud@hd204 ~]$ mkdir /home/cbcloud/hbconf

[cbcloud@hd205 ~]$ mkdir /home/cbcloud/hbconf

[cbcloud@hd206 ~]$ mkdir /home/cbcloud/hbconf

5、配置系統環(huán)境變量(以root用戶操作)

[root@hd202 ~]# vi /etc/profile

在文件尾部加入以下內容

export HBASE_CONF_DIR=/home/cbcloud/hbconf

export HBASE_HOME=/home/cbcloud/hbase

[root@hd203 ~]# vi /etc/profile

在文件尾部加入以下內容

export HBASE_CONF_DIR=/home/cbcloud/hbconf

export HBASE_HOME=/home/cbcloud/hbase

[root@hd204 ~]# vi /etc/profile

在文件尾部加入以下內容

export HBASE_CONF_DIR=/home/cbcloud/hbconf

export HBASE_HOME=/home/cbcloud/hbase

[root@hd205 ~]# vi /etc/profile

在文件尾部加入以下內容

export HBASE_CONF_DIR=/home/cbcloud/hbconf

export HBASE_HOME=/home/cbcloud/hbase

[root@hd206 ~]# vi /etc/profile

在文件尾部加入以下內容

export HBASE_CONF_DIR=/home/cbcloud/hbconf

export HBASE_HOME=/home/cbcloud/hbase

6、配置用戶環(huán)境變量(以cbcloud用戶操作)

[cbcloud@hd202 ~]$ vi .bash_profile

在文件尾部加入以下內容

export HBASE_CONF_DIR=/home/cbcloud/hbconf

export HBASE_HOME=/home/cbcloud/hbase

[cbcloud@hd203 ~]$ vi .bash_profile

在文件尾部加入以下內容

export HBASE_CONF_DIR=/home/cbcloud/hbconf

export HBASE_HOME=/home/cbcloud/hbase

[cbcloud@hd204 ~]$ vi .bash_profile

在文件尾部加入以下內容

export HBASE_CONF_DIR=/home/cbcloud/hbconf

export HBASE_HOME=/home/cbcloud/hbase

[cbcloud@hd205 ~]$ vi .bash_profile

在文件尾部加入以下內容

export HBASE_CONF_DIR=/home/cbcloud/hbconf

export HBASE_HOME=/home/cbcloud/hbase

[cbcloud@hd206 ~]$ vi .bash_profile

在文件尾部加入以下內容

export HBASE_CONF_DIR=/home/cbcloud/hbconf

export HBASE_HOME=/home/cbcloud/hbase

7、復制$HBASE_HOME目錄下的conf子目錄下的所有文件到$HBASE_CONF_DIR目錄下(只在hd202上操作)

[cbcloud@hd202 ~]$ cp /home/cbcloud/hbase/conf/*  /home/cbcloud/hbconf/

     

8、編輯$HBASE_CONF_DIR目錄下的hbase_env.sh(只在hd202上操作)

找到export HBASE_OPTS="-XX:+UseConcMarkSweepGC" 這一行，將其注釋掉，然后添加以下內容

export HBASE_OPTS="$HBASE_OPTS -XX:+HeapDumpOnOutOfMemoryError -XX:+UseConcMarkSweepGC"

export JAVA_HOME=/usr/java/default

export HBASE_HOME=/home/cbcloud/hbase

export HADOOP_HOME=/home/cbcloud/hadoop

export HBASE_MANAGES_ZK=true    //由HBASE自動管理zookeeper進程

9、編輯$HBASE_CONF_DIR目錄下的hbase_site.xml(只在hd202上操作)

   加入以下內容

<configuration>

 <property>

         <name>hbase.rootdir</name>

         <value>hdfs://hd202:9000/hbase</value>

       </property>

       <property>

         <name>hbase.cluster.distributed</name>

         <value>true</value>

       </property>

       <property>

         <name>hbase.master</name>

         <value>hd202:60000</value>

       </property>

       <property>

         <name>hbase.master.port</name>

         <value>60000</value>

         <description>The port master should bind to.</description>

       </property>

       <property>

         <name>hbase.zookeeper.quorum</name>

         <value>hd204,hd205,hd206</value>

       </property>

       <property>

         <name>hbase.zookeeper.property.dataDir</name>

         <value>/home/cbcloud/zookeeperdata</value>

       </property>

</configuration>

10、編輯regionservers文件

刪除localhost，然后加入以下內容

hd204

hd205

hd206

11、復制$HBASE_HOME目錄及$HBASE_CONF_DIR目錄到其他四臺虛擬機上

[cbcloud@hd202 ~]$ scp -r hbase hd203:/home/cbcloud/

[cbcloud@hd202 ~]$ scp -r hbase hd204:/home/cbcloud/

[cbcloud@hd202 ~]$ scp -r hbase hd205:/home/cbcloud/

[cbcloud@hd202 ~]$ scp -r hbase hd206:/home/cbcloud/

[cbcloud@hd202 ~]$ scp -r hbconf hd203:/home/cbcloud/

[cbcloud@hd202 ~]$ scp -r hbconf hd204:/home/cbcloud/

[cbcloud@hd202 ~]$ scp -r hbconf hd205:/home/cbcloud/

[cbcloud@hd202 ~]$ scp -r hbconf hd206:/home/cbcloud/

12、啟動HBASE

[cbcloud@hd202 ~]$ cd hbase

[cbcloud@hd202 hbase]$ cd bin

[cbcloud@hd202 bin]$ ./start-hbase.sh  #在主節(jié)點上啟動hbase

starting master, logging to /home/cbcloud/hbase/logs/hbase-cbcloud-master-hd202.out

hd204: starting regionserver, logging to /home/cbcloud/hbase/logs/hbase-cbcloud-regionserver-hd204.out

hd205: starting regionserver, logging to /home/cbcloud/hbase/logs/hbase-cbcloud-regionserver-hd205.out

hd206: starting regionserver, logging to /home/cbcloud/hbase/logs/hbase-cbcloud-regionserver-hd206.out

[cbcloud@hd202 bin]$ jps

3779 JobTracker

4529 HMaster

4736 Jps

3633 NameNode

[cbcloud@hd203 ~]$ cd hbase

[cbcloud@hd203 hbase]$ cd bin

[cbcloud@hd203 bin]$ ./hbase-daemon.sh start master  #在SecondaryNameNode上啟動HMaster

starting master, logging to /home/cbcloud/hbase/logs/hbase-cbcloud-master-hd203.out

[cbcloud@hd203 bin]$ jps

3815 Jps

3618 SecondaryNameNode

3722 HMaster

[cbcloud@hd204 hbconf]$ jps

3690 TaskTracker

3614 DataNode

4252 Jps

3845 QuorumPeerMain

4124 HRegionServer

[cbcloud@hd205 hbconf]$ jps

3826 QuorumPeerMain

3612 DataNode

3688 TaskTracker

4085 HRegionServer

4256 Jps

[cbcloud@hd206 ~]$ jps

3825 QuorumPeerMain

3693 TaskTracker

4091 HRegionServer

4279 Jps

3617 DataNode

13、使用WEB界面查看HMaster的情況http://192.168.0.202:60010

14、關閉HBbase的方法

第一步：關閉SecondaryNameNode上的HMaster服務

[cbcloud@hd203 ~]$ cd hbase

[cbcloud@hd203 hbase]$ cd bin

[cbcloud@hd203 bin]$ ./hbase-daemon.sh stop master

stopping master.

[cbcloud@hd203 bin]$ jps

4437 Jps

3618 SecondaryNameNode

第二步：關閉NameNode上的HMaster服務

[cbcloud@hd202 ~]$ cd hbase

[cbcloud@hd202 hbase]$ cd bin

[cbcloud@hd202 bin]$ ./stop-hbase.sh 

stopping hbase...................

[cbcloud@hd202 bin]$ jps

5620 Jps

3779 JobTracker

3633 NameNode

第三步:關閉zookeeper服務

[cbcloud@hd204 ~]$ cd zookeeper/bin

[cbcloud@hd204 bin]$ ./zkServer.sh stop

JMX enabled by default

Using config: /home/cbcloud/zookeeper/bin/../conf/zoo.cfg

Stopping zookeeper ... STOPPED

[cbcloud@hd204 bin]$ jps

3690 TaskTracker

3614 DataNode

4988 Jps

[cbcloud@hd205 hbconf]$ cd ..

[cbcloud@hd205 ~]$ cd zookeeper/bin

[cbcloud@hd205 bin]$ ./zkServer.sh stop

JMX enabled by default

Using config: /home/cbcloud/zookeeper/bin/../conf/zoo.cfg

Stopping zookeeper ... STOPPED

[cbcloud@hd205 bin]$ jps

3612 DataNode

3688 TaskTracker

4920 Jps

[cbcloud@hd206 ~]$ cd zookeeper

[cbcloud@hd206 zookeeper]$ cd bin

[cbcloud@hd206 bin]$ ./zkServer.sh stop

JMX enabled by default

Using config: /home/cbcloud/zookeeper/bin/../conf/zoo.cfg

Stopping zookeeper ... STOPPED

[cbcloud@hd206 bin]$ jps

4931 Jps

3693 TaskTracker

3617 DataNode

第四步：關閉hadoop

[cbcloud@hd202 bin]$ ./stop-all.sh 

stopping jobtracker

hd205: stopping tasktracker

hd204: stopping tasktracker

hd206: stopping tasktracker

stopping namenode

hd205: stopping datanode

hd206: stopping datanode

hd204: stopping datanode

hd203: stopping secondarynamenode

15、啟動HBase的順序與上面的順序嚴格相反

    第一步：啟動hadoop

    第二步：啟動各個DataNode節(jié)點上的zookeeper

第三步：啟動NameNode上的HMaster

第四步：啟動SecondaryNameNode上的HMaster

網頁標題：Hadoop+Hbase+Zookeeper安裝及配置完整版(Hadoop1系列)
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