hadoop2的automatic HA+Federation+Yarn怎么配置

本篇內容主要講解“hadoop2的automatic HA+Federation+Yarn怎么配置”，感興趣的朋友不妨來看看。本文介紹的方法操作簡單快捷，實用性強。下面就讓小編來帶大家學習“hadoop2的automatic HA+Federation+Yarn怎么配置”吧!

hadoop2體系結構

    要想理解本節內容，首先需要了解hadoop1的體系結構。在本博客中和我的視頻中都有相關內容，這里不再重復，只講hadoop2的內容。

    hadoop1的核心組成是兩部分，即HDFS和MapReduce。在hadoop2中變為HDFS和Yarn。

    新的HDFS中的NameNode不再是只有一個了，可以有多個（目前只支持2個）。每一個都有相同的職能。

    這兩個NameNode的地位如何哪？答：一個是active狀態的，一個是standby狀態的。當集群運行時，只有active狀態的NameNode是正常工作的，standby狀態的NameNode是處于待命狀態的，時刻同步active狀態NameNode的數據。一旦active狀態的NameNode不能工作，通過手工或者自動切換，standby狀態的NameNode就可以轉變為active狀態的，就可以繼續工作了。這就是高可靠。

    當NameNode發生故障時，他們的數據如何保持一致哪？在這里，2個NameNode的數據其實是實時共享的。新HDFS采用了一種共享機制，JournalNode集群或者NFS進行共享。NFS是操作系統層面的，JournalNode是hadoop層面的，我們這里使用JournalNode集群進行數據共享。

   如何實現NameNode的自動切換哪？這就需要使用ZooKeeper集群進行選擇了。HDFS集群中的兩個NameNode都在ZooKeeper中注冊，當active狀態的NameNode出故障時，ZooKeeper能檢測到這種情況，它就會自動把standby狀態的NameNode切換為active狀態。

    HDFS Federation（HDFS聯盟）是怎么回事？答：聯盟的出現是有原因的。我們知道NameNode是核心節點，維護著整個HDFS中的元數據信息，那么其容量是有限的，受制于服務器的內存空間。當NameNode服務器的內存裝不下數據后，那么HDFS集群就裝不下數據了，壽命也就到頭了。因此其擴展性是受限的。HDFS聯盟指的是有多個HDFS集群同時工作，那么其容量理論上就不受限了，夸張點說就是無限擴展。

配置過程詳述

    大家從官網下載的apache hadoop2.2.0的代碼是32位操作系統下編譯的，不能使用64位的jdk。我下面部署的hadoop代碼是自己的64位機器上重新編譯過的。服務器都是64位的，本配置盡量模擬真實環境。大家可以以32位的操作系統做練習，這是沒關系的。關于基本環境的詳細配置，大家可以觀看我的視頻，或者瀏覽吳超沉思錄的相關文章。

    在這里我們選用4臺機器進行示范，各臺機器的職責如下表格所示

    配置文件一共包括6個，分別是hadoop-env.sh、core-site.xml、hdfs-site.xml、mapred-site.xml、yarn-site.xml和slaves。除了hdfs-site.xml文件在不同集群配置不同外，其余文件在四個節點的配置是完全一樣的，可以復制。

文件hadoop-env.sh

就是修改這一行內容，修改后的結果如下

export JAVA_HOME=/usr/local/jdk

【這里的JAVA_HOME的值是jdk的安裝路徑。如果你那里不一樣，請修改為自己的地址】

文件core-site.xml

<configuration>    
<property>    
 <name>fs.defaultFS</name>    
 <value>hdfs://cluster1</value>    
</property>

【這里的值指的是默認的HDFS路徑。當有多個HDFS集群同時工作時，用戶如果不寫集群名稱，那么默認使用哪個哪？在這里指定！該值來自于hdfs-site.xml中的配置】    
<property>    
 <name>hadoop.tmp.dir</name>    
 <value>/usr/local/hadoop/tmp</value>    
</property>

【這里的路徑默認是NameNode、DataNode、JournalNode等存放數據的公共目錄。用戶也可以自己單獨指定這三類節點的目錄。】    
<property>    
 <name>ha.zookeeper.quorum</name>    
 <value>hadoop101:2181,hadoop102:2181,hadoop103:2181</value>    
</property>

【這里是ZooKeeper集群的地址和端口。注意，數量一定是奇數，且不少于三個節點】    
</configuration>

集群c1的文件hdfs-site.xml

該文件只配置在hadoop101和hadoop102上。

<configuration>    
   <property>    
       <name>dfs.replication</name>    
       <value>2</value>    
   </property>

【指定DataNode存儲block的副本數量。默認值是3個，我們現在有4個DataNode，該值不大于4即可。】    
   <property>    
       <name>dfs.nameservices</name>    
       <value>cluster1,cluster2</value>    
   </property>

【使用federation時，使用了2個HDFS集群。這里抽象出兩個NameService實際上就是給這2個HDFS集群起了個別名。名字可以隨便起，相互不重復即可】    
   <property>    
       <name>dfs.ha.namenodes.cluster1</name>    
       <value>hadoop101,hadoop102</value>    
   </property>

【指定NameService是cluster1時的namenode有哪些，這里的值也是邏輯名稱，名字隨便起，相互不重復即可】    
   <property>    
       <name>dfs.namenode.rpc-address.cluster1.hadoop101</name>    
       <value>hadoop101:9000</value>    
   </property>

【指定hadoop101的RPC地址】    
   <property>    
       <name>dfs.namenode.http-address.cluster1.hadoop101</name>    
       <value>hadoop101:50070</value>    
   </property>

【指定hadoop101的http地址】    
   <property>    
       <name>dfs.namenode.rpc-address.cluster1.hadoop102</name>    
       <value>hadoop102:9000</value>    
   </property>

【指定hadoop102的RPC地址】

<property>    
       <name>dfs.namenode.http-address.cluster1.hadoop102</name>    
       <value>hadoop102:50070</value>    
   </property>

【指定hadoop102的http地址】    
   <property>    
       <name>dfs.namenode.shared.edits.dir</name>    
       <value>qjournal://hadoop101:8485;hadoop102:8485;hadoop103:8485/cluster1</value>    
   </property>    
【指定cluster1的兩個NameNode共享edits文件目錄時，使用的JournalNode集群信息】

<property>  
       <name>dfs.ha.automatic-failover.enabled.cluster1</name>  
       <value>true</value>  
   </property>  
【指定cluster1是否啟動自動故障恢復，即當NameNode出故障時，是否自動切換到另一臺NameNode】

<property>    
       <name>dfs.client.failover.proxy.provider.cluster1</name>    
       <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value>    
   </property>

【指定cluster1出故障時，哪個實現類負責執行故障切換】    
   <property>    
       <name>dfs.ha.namenodes.cluster2</name>    
       <value>hadoop103,hadoop104</value>    
   </property>

【指定NameService是cluster2時，兩個NameNode是誰，這里是邏輯名稱，不重復即可。以下配置與cluster1幾乎全部相似，不再添加注釋】    
   <property>    
       <name>dfs.namenode.rpc-address.cluster2.hadoop103</name>    
       <value>hadoop103:9000</value>    
   </property>    
   <property>    
       <name>dfs.namenode.http-address.cluster2.hadoop103</name>    
       <value>hadoop103:50070</value>    
   </property>    
   <property>    
       <name>dfs.namenode.rpc-address.cluster2.hadoop104</name>    
       <value>hadoop104:9000</value>    
   </property>

<property>    
       <name>dfs.namenode.http-address.cluster2.hadoop104</name>    
       <value>hadoop104:50070</value>    
   </property>    
   <!--    
   <property>    
       <name>dfs.namenode.shared.edits.dir</name>    
       <value>qjournal://hadoop101:8485;hadoop102:8485;hadoop103:8485/cluster2</value>    
   </property>

【這段代碼是注釋掉的，不要打開】    
   -->    
   <property>    
       <name>dfs.ha.automatic-failover.enabled.cluster2</name>    
       <value>true</value>    
   </property>    
   <property>    
       <name>dfs.client.failover.proxy.provider.cluster2</name>    
       <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value>    
   </property>    
   <property>    
       <name>dfs.journalnode.edits.dir</name>    
       <value>/usr/local/hadoop/tmp/journal</value>    
   </property>

【指定JournalNode集群在對NameNode的目錄進行共享時，自己存儲數據的磁盤路徑】    
   <property>    
       <name>dfs.ha.fencing.methods</name>    
       <value>sshfence</value>    
   </property>

【一旦需要NameNode切換，使用ssh方式進行操作】    
   <property>    
       <name>dfs.ha.fencing.ssh.private-key-files</name>    
       <value>/root/.ssh/id_rsa</value>    
   </property>

【如果使用ssh進行故障切換，使用ssh通信時用的密鑰存儲的位置】

</configuration>

集群c2的文件hdfs-site.xml

該文件只配置在hadoop103和hadoop104上。

該文件與c1中的hdfs-site.xml配置內容完全相同，只有注釋位置不一樣，一定要注意，不要隨便改

<configuration>    
   <property>    
       <name>dfs.replication</name>    
       <value>2</value>    
   </property>    
   <property>    
       <name>dfs.nameservices</name>    
       <value>cluster1,cluster2</value>    
   </property>    
   <property>    
       <name>dfs.ha.namenodes.cluster1</name>    
       <value>hadoop101,hadoop102</value>    
   </property>    
   <property>    
       <name>dfs.namenode.rpc-address.cluster1.hadoop101</name>    
       <value>hadoop101:9000</value>    
   </property>    
   <property>    
       <name>dfs.namenode.http-address.cluster1.hadoop101</name>    
       <value>hadoop101:50070</value>    
   </property>    
   <property>    
       <name>dfs.namenode.rpc-address.cluster1.hadoop102</name>    
       <value>hadoop102:9000</value>    
   </property>

<property>    
       <name>dfs.namenode.http-address.cluster1.hadoop102</name>    
       <value>hadoop102:50070</value>    
   </property>    
   <!--    
   <property>    
       <name>dfs.namenode.shared.edits.dir</name>    
       <value>qjournal://hadoop101:8485;hadoop102:8485;hadoop103:8485/cluster1</value>    
   </property>

【這段代碼是注釋掉的，不要打開】  
   -->  
   <property>  
       <name>dfs.ha.automatic-failover.enabled.cluster1</name>  
       <value>true</value>  
   </property>  
   <property>  
       <name>dfs.client.failover.proxy.provider.cluster1</name>  
       <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value>  
   </property>  
   <property>  
       <name>dfs.ha.namenodes.cluster2</name>  
       <value>hadoop103,hadoop104</value>  
   </property>  
   <property>  
       <name>dfs.namenode.rpc-address.cluster2.hadoop103</name>  
       <value>hadoop103:9000</value>  
   </property>  
   <property>  
       <name>dfs.namenode.http-address.cluster2.hadoop103</name>  
       <value>hadoop103:50070</value>  
   </property>  
   <property>  
       <name>dfs.namenode.rpc-address.cluster2.hadoop104</name>  
       <value>hadoop104:9000</value>  
   </property>

<property>    
       <name>dfs.namenode.http-address.cluster2.hadoop104</name>    
       <value>hadoop104:50070</value>    
   </property>

<property>    
       <name>dfs.namenode.shared.edits.dir</name>    
       <value>qjournal://hadoop101:8485;hadoop102:8485;hadoop103:8485/cluster2</value>    
   </property>

<property>    
       <name>dfs.ha.automatic-failover.enabled.cluster2</name>    
       <value>true</value>    
   </property>    
   <property>    
       <name>dfs.client.failover.proxy.provider.cluster2</name>    
       <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value>    
   </property>    
   <property>    
       <name>dfs.journalnode.edits.dir</name>    
       <value>/usr/local/hadoop/tmp/journal</value>    
   </property>    
   <property>    
       <name>dfs.ha.fencing.methods</name>    
       <value>sshfence</value>    
   </property>    
   <property>    
       <name>dfs.ha.fencing.ssh.private-key-files</name>    
       <value>/root/.ssh/id_rsa</value>    
   </property>

</configuration>

文件mapred-site.xml

<configuration>    
<property>    
 <name>mapreduce.framework.name</name>    
 <value>yarn</value>    
</property>

【指定運行mapreduce的環境是yarn，與hadoop1截然不同的地方】    
</configuration>

文件yarn-site.xml

<configuration>    
 <property>    
   <name>yarn.resourcemanager.hostname</name>    
   <value>hadoop101</value>    
 </property>

【自定ResourceManager的地址，還是單點，這是隱患】

<property>    
   <name>yarn.nodemanager.aux-services</name>    
   <value>mapreduce_shuffle</value>    
 </property>    
</configuration>

文件slaves

hadoop101    
hadoop102    
hadoop103    
hadoop104

【指定所有的DataNode節點列表，每行一個節點名稱】    

注意：以上配置中c1中的hdfs-site.xml文件配置在hadoop101和hadoop102中，c2中的hdfs-site.xml文件配置在hadoop103和hadoop104中。其余文件在各個節點都相同。

啟動過程

啟動時，要非常小心，請嚴格按照我這里描述的步驟做，每一步要檢查自己的操作是否正確。

1.首先檢查各個節點的配置文件是否正確

特別要注意hdfs-site.xml文件，在c1和c2中是不同的。

2.啟動ZooKeeper集群

關于ZooKeeper的集群配置和啟動描述見吳超沉思錄，這里不再詳述。

在hadoop101、hadoop102、hadoop103上分別執行命令：zkServer.sh start

命令輸出(以hadoop101為例)：

[root@hadoop101 hadoop]# zkServer.sh status    
JMX enabled by default    
Using config: /usr/local/zookeeper/bin/../conf/zoo.cfg    
Mode: follower

三個節點都執行完啟動命令后，在hadoop101執行以下驗證。

驗證：

[root@hadoop101 hadoop]# zkCli.sh    
Connecting to localhost:2181    
2014-02-12 07:20:35,509 [myid:] - INFO  [main:Environment@100] - Client environment:zookeeper.version=3.4.5-1392090, built on 09/30/2012 17:52 GMT    
2014-02-12 07:20:35,523 [myid:] - INFO  [main:Environment@100] - Client environment:host.name=hadoop101    
2014-02-12 07:20:35,524 [myid:] - INFO  [main:Environment@100] - Client environment:java.version=1.7.0_45    
2014-02-12 07:20:35,525 [myid:] - INFO  [main:Environment@100] - Client environment:java.vendor=Oracle Corporation    
2014-02-12 07:20:35,525 [myid:] - INFO  [main:Environment@100] - Client environment:java.home=/usr/local/jdk/jre    
2014-02-12 07:20:35,526 [myid:] - INFO  [main:Environment@100] - Client environment:java.class.path=/usr/local/zookeeper/bin/../build/classes:/usr/local/zookeeper/bin/../build/lib/*.jar:/usr/local/zookeeper/bin/../lib/slf4j-log4j12-1.6.1.jar:/usr/local/zookeeper/bin/../lib/slf4j-api-1.6.1.jar:/usr/local/zookeeper/bin/../lib/netty-3.2.2.Final.jar:/usr/local/zookeeper/bin/../lib/log4j-1.2.15.jar:/usr/local/zookeeper/bin/../lib/jline-0.9.94.jar:/usr/local/zookeeper/bin/../zookeeper-3.4.5.jar:/usr/local/zookeeper/bin/../src/java/lib/*.jar:/usr/local/zookeeper/bin/../conf:/usr/local/hadoop    
2014-02-12 07:20:35,526 [myid:] - INFO  [main:Environment@100] - Client environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib    
2014-02-12 07:20:35,527 [myid:] - INFO  [main:Environment@100] - Client environment:java.io.tmpdir=/tmp    
2014-02-12 07:20:35,528 [myid:] - INFO  [main:Environment@100] - Client environment:java.compiler=<NA>    
2014-02-12 07:20:35,528 [myid:] - INFO  [main:Environment@100] - Client environment:os.name=Linux    
2014-02-12 07:20:35,529 [myid:] - INFO  [main:Environment@100] - Client environment:os.arch=amd64    
2014-02-12 07:20:35,529 [myid:] - INFO  [main:Environment@100] - Client environment:os.version=2.6.32-431.el6.x86_64    
2014-02-12 07:20:35,530 [myid:] - INFO  [main:Environment@100] - Client environment:user.name=root    
2014-02-12 07:20:35,530 [myid:] - INFO  [main:Environment@100] - Client environment:user.home=/root    
2014-02-12 07:20:35,531 [myid:] - INFO  [main:Environment@100] - Client environment:user.dir=/usr/local/hadoop    
2014-02-12 07:20:35,533 [myid:] - INFO  [main:ZooKeeper@438] - Initiating client connection, connectString=localhost:2181 sessionTimeout=30000 watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@10636a7e    
Welcome to ZooKeeper!    
2014-02-12 07:20:35,569 [myid:] - INFO  [main-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@966] - Opening socket connection to server 127.0.0.1/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)    
2014-02-12 07:20:35,587 [myid:] - INFO  [main-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@849] - Socket connection established to 127.0.0.1/127.0.0.1:2181, initiating session    
JLine support is enabled    
2014-02-12 07:20:35,687 [myid:] - INFO  [main-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@1207] - Session establishment complete on server 127.0.0.1/127.0.0.1:2181, sessionid = 0x654423404e530000, negotiated timeout = 30000

WATCHER::

WatchedEvent state:SyncConnected type:None path:null    
[zk: localhost:2181(CONNECTED) 0] ls /    
[zookeeper]    
[zk: localhost:2181(CONNECTED) 1]

【可以看到ZK集群 中只有一個節點zookeeper】

3.格式化ZooKeeper集群，目的是在ZooKeeper集群上建立HA的相應節點。

在hadoop101上執行命令：/usr/local/hadoop/bin/hdfs zkfc –formatZK

命令輸出：

[root@hadoop101 hadoop]# /usr/local/hadoop/bin/hdfs zkfc -formatZK    
14/02/12 07:28:56 INFO tools.DFSZKFailoverController: Failover controller configured for NameNode NameNode at hadoop101/192.168.80.101:9000    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Client environment:zookeeper.version=3.4.5-1392090, built on 09/30/2012 17:52 GMT    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Client environment:host.name=hadoop101    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Client environment:java.version=1.7.0_45    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Client environment:java.vendor=Oracle Corporation    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Client environment:java.home=/usr/local/jdk/jre    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Client environment:java.class.path=/usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jsch-0.1.42.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-digester-1.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-el-1.0.jar:/usr/local/hadoop/share/hadoop/common/lib/jets3t-0.6.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/slf4j-api-1.7.5.jar:/usr/local/hadoop/share/hadoop/common/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-lang-2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/jasper-runtime-5.5.23.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-xc-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/common/lib/activation-1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-httpclient-3.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/usr/local/hadoop/share/hadoop/common/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/lib/jsp-api-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-configuration-1.6.jar:/usr/local/hadoop/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/usr/local/hadoop/share/hadoop/common/lib/zookeeper-3.4.5.jar:/usr/local/hadoop/share/hadoop/common/lib/hadoop-auth-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/common/lib/stax-api-1.0.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-collections-3.2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/junit-4.8.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/jsr305-1.3.9.jar:/usr/local/hadoop/share/hadoop/common/lib/mockito-all-1.8.5.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-logging-1.1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-math-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-json-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-net-3.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/common/lib/jasper-compiler-5.5.23.jar:/usr/local/hadoop/share/hadoop/common/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/common/lib/xmlenc-0.52.jar:/usr/local/hadoop/share/hadoop/common/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/common/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-jaxrs-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/jettison-1.1.jar:/usr/local/hadoop/share/hadoop/common/hadoop-common-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/common/hadoop-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/hadoop-nfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-el-1.0.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-lang-2.5.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jasper-runtime-5.5.23.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jsp-api-2.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jsr305-1.3.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-logging-1.1.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-nfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guice-3.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/hamcrest-core-1.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/yarn/lib/aopalliance-1.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/javax.inject-1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/yarn/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/junit-4.10.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/yarn/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-api-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-tests-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-site-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-client-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/guice-3.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/hamcrest-core-1.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/javax.inject-1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/junit-4.10.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.2.0.jar:/usr/local/hadoop/contrib/capacity-scheduler/*.jar    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Client environment:java.library.path=/usr/local/hadoop/lib/native    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Client environment:java.io.tmpdir=/tmp    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Client environment:java.compiler=<NA>    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Client environment:os.name=Linux    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Client environment:os.arch=amd64    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Client environment:os.version=2.6.32-431.el6.x86_64    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Client environment:user.name=root    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Client environment:user.home=/root    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Client environment:user.dir=/usr/local/hadoop    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Initiating client connection, connectString=hadoop101:2181,hadoop102:2181,hadoop103:2181 sessionTimeout=5000 watcher=org.apache.hadoop.ha.ActiveStandbyElector$WatcherWithClientRef@3e9c00ea    
14/02/12 07:28:57 INFO zookeeper.ClientCnxn: Opening socket connection to server hadoop102/192.168.80.102:2181. Will not attempt to authenticate using SASL (unknown error)    
14/02/12 07:28:57 INFO zookeeper.ClientCnxn: Socket connection established to hadoop102/192.168.80.102:2181, initiating session    
14/02/12 07:28:57 INFO zookeeper.ClientCnxn: Session establishment complete on server hadoop102/192.168.80.102:2181, sessionid = 0x6644234039710000, negotiated timeout = 5000    
14/02/12 07:28:57 INFO ha.ActiveStandbyElector: Session connected.    
14/02/12 07:28:57 INFO ha.ActiveStandbyElector: Successfully created /hadoop-ha/cluster1 in ZK.    
14/02/12 07:28:57 INFO zookeeper.ZooKeeper: Session: 0x6644234039710000 closed    
14/02/12 07:28:57 INFO zookeeper.ClientCnxn: EventThread shut down    
[root@hadoop101 hadoop]#

驗證：

[root@hadoop101 hadoop]# zkCli.sh    
Connecting to localhost:2181    
2014-02-12 07:30:24,355 [myid:] - INFO  [main:Environment@100] - Client environment:zookeeper.version=3.4.5-1392090, built on 09/30/2012 17:52 GMT    
2014-02-12 07:30:24,373 [myid:] - INFO  [main:Environment@100] - Client environment:host.name=hadoop101    
2014-02-12 07:30:24,374 [myid:] - INFO  [main:Environment@100] - Client environment:java.version=1.7.0_45    
2014-02-12 07:30:24,375 [myid:] - INFO  [main:Environment@100] - Client environment:java.vendor=Oracle Corporation    
2014-02-12 07:30:24,376 [myid:] - INFO  [main:Environment@100] - Client environment:java.home=/usr/local/jdk/jre    
2014-02-12 07:30:24,376 [myid:] - INFO  [main:Environment@100] - Client environment:java.class.path=/usr/local/zookeeper/bin/../build/classes:/usr/local/zookeeper/bin/../build/lib/*.jar:/usr/local/zookeeper/bin/../lib/slf4j-log4j12-1.6.1.jar:/usr/local/zookeeper/bin/../lib/slf4j-api-1.6.1.jar:/usr/local/zookeeper/bin/../lib/netty-3.2.2.Final.jar:/usr/local/zookeeper/bin/../lib/log4j-1.2.15.jar:/usr/local/zookeeper/bin/../lib/jline-0.9.94.jar:/usr/local/zookeeper/bin/../zookeeper-3.4.5.jar:/usr/local/zookeeper/bin/../src/java/lib/*.jar:/usr/local/zookeeper/bin/../conf:/usr/local/hadoop    
2014-02-12 07:30:24,378 [myid:] - INFO  [main:Environment@100] - Client environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib    
2014-02-12 07:30:24,379 [myid:] - INFO  [main:Environment@100] - Client environment:java.io.tmpdir=/tmp    
2014-02-12 07:30:24,380 [myid:] - INFO  [main:Environment@100] - Client environment:java.compiler=<NA>    
2014-02-12 07:30:24,381 [myid:] - INFO  [main:Environment@100] - Client environment:os.name=Linux    
2014-02-12 07:30:24,382 [myid:] - INFO  [main:Environment@100] - Client environment:os.arch=amd64    
2014-02-12 07:30:24,382 [myid:] - INFO  [main:Environment@100] - Client environment:os.version=2.6.32-431.el6.x86_64    
2014-02-12 07:30:24,383 [myid:] - INFO  [main:Environment@100] - Client environment:user.name=root    
2014-02-12 07:30:24,383 [myid:] - INFO  [main:Environment@100] - Client environment:user.home=/root    
2014-02-12 07:30:24,384 [myid:] - INFO  [main:Environment@100] - Client environment:user.dir=/usr/local/hadoop    
2014-02-12 07:30:24,387 [myid:] - INFO  [main:ZooKeeper@438] - Initiating client connection, connectString=localhost:2181 sessionTimeout=30000 watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@10636a7e    
Welcome to ZooKeeper!    
2014-02-12 07:30:24,422 [myid:] - INFO  [main-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@966] - Opening socket connection to server 127.0.0.1/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)    
2014-02-12 07:30:24,462 [myid:] - INFO  [main-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@849] - Socket connection established to 127.0.0.1/127.0.0.1:2181, initiating session    
JLine support is enabled    
2014-02-12 07:30:24,494 [myid:] - INFO  [main-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@1207] - Session establishment complete on server 127.0.0.1/127.0.0.1:2181, sessionid = 0x654423404e530001, negotiated timeout = 30000

WATCHER::

WatchedEvent state:SyncConnected type:None path:null    
[zk: localhost:2181(CONNECTED) 0] ls /    
[hadoop-ha, zookeeper]    
[zk: localhost:2181(CONNECTED) 1] ls /hadoop-ha    
[cluster1]    
[zk: localhost:2181(CONNECTED) 2]

【格式化操作的目的是在ZK集群中建立一個節點，用于保存集群c1中NameNode的狀態數據】    

在hadoop103上執行命令：/usr/local/hadoop/bin/hdfs zkfc –formatZK

命令輸出：

[root@hadoop103 hadoop]# /usr/local/hadoop/bin/hdfs zkfc -formatZK    
14/02/12 07:32:14 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable    
14/02/12 07:32:14 INFO tools.DFSZKFailoverController: Failover controller configured for NameNode NameNode at hadoop103/192.168.80.103:9000    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Client environment:zookeeper.version=3.4.5-1392090, built on 09/30/2012 17:52 GMT    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Client environment:host.name=hadoop103    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Client environment:java.version=1.7.0_45    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Client environment:java.vendor=Oracle Corporation    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Client environment:java.home=/usr/local/jdk/jre    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Client environment:java.class.path=/usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jsch-0.1.42.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-digester-1.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-el-1.0.jar:/usr/local/hadoop/share/hadoop/common/lib/jets3t-0.6.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/slf4j-api-1.7.5.jar:/usr/local/hadoop/share/hadoop/common/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-lang-2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/jasper-runtime-5.5.23.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-xc-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/common/lib/activation-1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-httpclient-3.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/usr/local/hadoop/share/hadoop/common/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/lib/jsp-api-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-configuration-1.6.jar:/usr/local/hadoop/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/usr/local/hadoop/share/hadoop/common/lib/zookeeper-3.4.5.jar:/usr/local/hadoop/share/hadoop/common/lib/hadoop-auth-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/common/lib/stax-api-1.0.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-collections-3.2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/junit-4.8.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/jsr305-1.3.9.jar:/usr/local/hadoop/share/hadoop/common/lib/mockito-all-1.8.5.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-logging-1.1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-math-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-json-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-net-3.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/common/lib/jasper-compiler-5.5.23.jar:/usr/local/hadoop/share/hadoop/common/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/common/lib/xmlenc-0.52.jar:/usr/local/hadoop/share/hadoop/common/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/common/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-jaxrs-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/jettison-1.1.jar:/usr/local/hadoop/share/hadoop/common/hadoop-common-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/common/hadoop-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/hadoop-nfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-el-1.0.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-lang-2.5.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jasper-runtime-5.5.23.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jsp-api-2.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jsr305-1.3.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-logging-1.1.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-nfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guice-3.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/hamcrest-core-1.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/yarn/lib/aopalliance-1.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/javax.inject-1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/yarn/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/junit-4.10.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/yarn/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-api-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-tests-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-site-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-client-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/guice-3.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/hamcrest-core-1.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/javax.inject-1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/junit-4.10.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.2.0.jar:/usr/local/hadoop/contrib/capacity-scheduler/*.jar    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Client environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Client environment:java.io.tmpdir=/tmp    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Client environment:java.compiler=<NA>    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Client environment:os.name=Linux    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Client environment:os.arch=amd64    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Client environment:os.version=2.6.32-431.el6.x86_64    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Client environment:user.name=root    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Client environment:user.home=/root    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Client environment:user.dir=/usr/local/hadoop    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Initiating client connection, connectString=hadoop101:2181,hadoop102:2181,hadoop103:2181 sessionTimeout=5000 watcher=org.apache.hadoop.ha.ActiveStandbyElector$WatcherWithClientRef@91d3b18    
14/02/12 07:32:14 INFO zookeeper.ClientCnxn: Opening socket connection to server hadoop102/192.168.80.102:2181. Will not attempt to authenticate using SASL (unknown error)    
14/02/12 07:32:14 INFO zookeeper.ClientCnxn: Socket connection established to hadoop102/192.168.80.102:2181, initiating session    
14/02/12 07:32:14 INFO zookeeper.ClientCnxn: Session establishment complete on server hadoop102/192.168.80.102:2181, sessionid = 0x6644234039710001, negotiated timeout = 5000    
14/02/12 07:32:14 INFO ha.ActiveStandbyElector: Session connected.    
14/02/12 07:32:14 INFO ha.ActiveStandbyElector: Successfully created /hadoop-ha/cluster2 in ZK.    
14/02/12 07:32:14 INFO zookeeper.ZooKeeper: Session: 0x6644234039710001 closed    
14/02/12 07:32:14 INFO zookeeper.ClientCnxn: EventThread shut down

驗證：

[root@hadoop103 hadoop]# zkCli.sh    
Connecting to localhost:2181    
2014-02-12 07:32:21,770 [myid:] - INFO  [main:Environment@100] - Client environment:zookeeper.version=3.4.5-1392090, built on 09/30/2012 17:52 GMT    
2014-02-12 07:32:21,786 [myid:] - INFO  [main:Environment@100] - Client environment:host.name=hadoop103    
2014-02-12 07:32:21,788 [myid:] - INFO  [main:Environment@100] - Client environment:java.version=1.7.0_45    
2014-02-12 07:32:21,789 [myid:] - INFO  [main:Environment@100] - Client environment:java.vendor=Oracle Corporation    
2014-02-12 07:32:21,789 [myid:] - INFO  [main:Environment@100] - Client environment:java.home=/usr/local/jdk/jre    
2014-02-12 07:32:21,790 [myid:] - INFO  [main:Environment@100] - Client environment:java.class.path=/usr/local/zookeeper/bin/../build/classes:/usr/local/zookeeper/bin/../build/lib/*.jar:/usr/local/zookeeper/bin/../lib/slf4j-log4j12-1.6.1.jar:/usr/local/zookeeper/bin/../lib/slf4j-api-1.6.1.jar:/usr/local/zookeeper/bin/../lib/netty-3.2.2.Final.jar:/usr/local/zookeeper/bin/../lib/log4j-1.2.15.jar:/usr/local/zookeeper/bin/../lib/jline-0.9.94.jar:/usr/local/zookeeper/bin/../zookeeper-3.4.5.jar:/usr/local/zookeeper/bin/../src/java/lib/*.jar:/usr/local/zookeeper/bin/../conf:/usr/local/hadoop    
2014-02-12 07:32:21,791 [myid:] - INFO  [main:Environment@100] - Client environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib    
2014-02-12 07:32:21,792 [myid:] - INFO  [main:Environment@100] - Client environment:java.io.tmpdir=/tmp    
2014-02-12 07:32:21,793 [myid:] - INFO  [main:Environment@100] - Client environment:java.compiler=<NA>    
2014-02-12 07:32:21,793 [myid:] - INFO  [main:Environment@100] - Client environment:os.name=Linux    
2014-02-12 07:32:21,794 [myid:] - INFO  [main:Environment@100] - Client environment:os.arch=amd64    
2014-02-12 07:32:21,794 [myid:] - INFO  [main:Environment@100] - Client environment:os.version=2.6.32-431.el6.x86_64    
2014-02-12 07:32:21,795 [myid:] - INFO  [main:Environment@100] - Client environment:user.name=root    
2014-02-12 07:32:21,796 [myid:] - INFO  [main:Environment@100] - Client environment:user.home=/root    
2014-02-12 07:32:21,796 [myid:] - INFO  [main:Environment@100] - Client environment:user.dir=/usr/local/hadoop    
2014-02-12 07:32:21,801 [myid:] - INFO  [main:ZooKeeper@438] - Initiating client connection, connectString=localhost:2181 sessionTimeout=30000 watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@10636a7e    
Welcome to ZooKeeper!    
2014-02-12 07:32:21,850 [myid:] - INFO  [main-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@966] - Opening socket connection to server 127.0.0.1/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)    
JLine support is enabled    
2014-02-12 07:32:21,868 [myid:] - INFO  [main-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@849] - Socket connection established to 127.0.0.1/127.0.0.1:2181, initiating session    
2014-02-12 07:32:21,906 [myid:] - INFO  [main-SendThread(127.0.0.1:2181):ClientCnxn$SendThread@1207] - Session establishment complete on server 127.0.0.1/127.0.0.1:2181, sessionid = 0x6744234039810002, negotiated timeout = 30000

WATCHER::

WatchedEvent state:SyncConnected type:None path:null    
[zk: localhost:2181(CONNECTED) 0] ls /    
[hadoop-ha, zookeeper]    
[zk: localhost:2181(CONNECTED) 1] ls /hadoop-ha    
[cluster2, cluster1]    
[zk: localhost:2181(CONNECTED) 2]

【集群c2也格式化，產生一個新的ZK節點cluster2】

4.啟動JournalNode集群

在hadoop101、hadoop102、hadoop103上分別執行命令：/usr/local/hadoop/sbin/hadoop-daemon.sh start journalnode

命令輸出(以hadoop101為例)：

[root@hadoop101 hadoop]# /usr/local/hadoop/sbin/hadoop-daemon.sh start journalnode    
starting journalnode, logging to /usr/local/hadoop/logs/hadoop-root-journalnode-hadoop101.out    
[root@hadoop101 hadoop]#    

在每個節點執行完啟動命令后，每個節點都執行以下驗證。

驗證(以hadoop101為例)：

[root@hadoop101 hadoop]# jps  
23396 JournalNode  
23598 Jps  
22491 QuorumPeerMain  
[root@hadoop101 hadoop]#

【產生一個java進程JournalNode】

查看一下目錄結構

[root@hadoop101 hadoop]# jps    
23396 JournalNode    
22491 QuorumPeerMain    
23445 Jps    

[root@hadoop101 hadoop]# pwd    
/usr/local/hadoop    
[root@hadoop101 hadoop]# ls tmp/    
journal    
[root@hadoop101 hadoop]#

【啟動JournalNode后，會在本地磁盤產生一個目錄，用戶保存NameNode的edits文件的數據】

5.格式化集群c1的一個NameNode

從hadoop101和hadoop102中任選一個即可，這里選擇的是hadoop101

在hadoop101執行以下命令：/usr/local/hadoop/bin/hdfs namenode -format -clusterId c1

命令輸出：

[root@hadoop101 hadoop]# /usr/local/hadoop/bin/hdfs namenode -format -clusterId c1    
14/02/12 08:07:59 INFO namenode.NameNode: STARTUP_MSG:    
/************************************************************    
STARTUP_MSG: Starting NameNode    
STARTUP_MSG:   host = hadoop101/192.168.80.101    
STARTUP_MSG:   args = [-format, -clusterId, c1]    
STARTUP_MSG:   version = 2.2.0    
STARTUP_MSG:   classpath = /usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jsch-0.1.42.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-digester-1.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-el-1.0.jar:/usr/local/hadoop/share/hadoop/common/lib/jets3t-0.6.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/slf4j-api-1.7.5.jar:/usr/local/hadoop/share/hadoop/common/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-lang-2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/jasper-runtime-5.5.23.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-xc-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/common/lib/activation-1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-httpclient-3.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/usr/local/hadoop/share/hadoop/common/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/lib/jsp-api-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-configuration-1.6.jar:/usr/local/hadoop/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/usr/local/hadoop/share/hadoop/common/lib/zookeeper-3.4.5.jar:/usr/local/hadoop/share/hadoop/common/lib/hadoop-auth-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/common/lib/stax-api-1.0.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-collections-3.2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/junit-4.8.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/jsr305-1.3.9.jar:/usr/local/hadoop/share/hadoop/common/lib/mockito-all-1.8.5.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-logging-1.1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-math-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-json-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-net-3.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/common/lib/jasper-compiler-5.5.23.jar:/usr/local/hadoop/share/hadoop/common/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/common/lib/xmlenc-0.52.jar:/usr/local/hadoop/share/hadoop/common/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/common/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-jaxrs-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/jettison-1.1.jar:/usr/local/hadoop/share/hadoop/common/hadoop-common-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/common/hadoop-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/hadoop-nfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-el-1.0.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-lang-2.5.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jasper-runtime-5.5.23.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jsp-api-2.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jsr305-1.3.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-logging-1.1.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-nfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guice-3.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/hamcrest-core-1.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/yarn/lib/aopalliance-1.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/javax.inject-1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/yarn/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/junit-4.10.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/yarn/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-api-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-tests-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-site-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-client-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/guice-3.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/hamcrest-core-1.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/javax.inject-1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/junit-4.10.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.2.0.jar:/contrib/capacity-scheduler/*.jar    
STARTUP_MSG:   build = Unknown -r Unknown; compiled by 'root' on 2013-12-26T08:50Z    
STARTUP_MSG:   java = 1.7.0_45    
************************************************************/    
14/02/12 08:07:59 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]    
Formatting using clusterid: c1    
14/02/12 08:08:01 INFO namenode.HostFileManager: read includes:    
HostSet(    
)    
14/02/12 08:08:01 INFO namenode.HostFileManager: read excludes:    
HostSet(    
)    
14/02/12 08:08:01 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit=1000    
14/02/12 08:08:01 INFO util.GSet: Computing capacity for map BlocksMap    
14/02/12 08:08:01 INFO util.GSet: VM type       = 64-bit    
14/02/12 08:08:01 INFO util.GSet: 2.0% max memory = 966.7 MB    
14/02/12 08:08:01 INFO util.GSet: capacity      = 2^21 = 2097152 entries    
14/02/12 08:08:01 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false    
14/02/12 08:08:01 INFO blockmanagement.BlockManager: defaultReplication         = 2    
14/02/12 08:08:01 INFO blockmanagement.BlockManager: maxReplication             = 512    
14/02/12 08:08:01 INFO blockmanagement.BlockManager: minReplication             = 1    
14/02/12 08:08:01 INFO blockmanagement.BlockManager: maxReplicationStreams      = 2    
14/02/12 08:08:01 INFO blockmanagement.BlockManager: shouldCheckForEnoughRacks  = false    
14/02/12 08:08:01 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000    
14/02/12 08:08:01 INFO blockmanagement.BlockManager: encryptDataTransfer        = false    
14/02/12 08:08:01 INFO namenode.FSNamesystem: fsOwner             = root (auth:SIMPLE)    
14/02/12 08:08:01 INFO namenode.FSNamesystem: supergroup          = supergroup    
14/02/12 08:08:01 INFO namenode.FSNamesystem: isPermissionEnabled = true    
14/02/12 08:08:01 INFO namenode.FSNamesystem: Determined nameservice ID: cluster1    
14/02/12 08:08:01 INFO namenode.FSNamesystem: HA Enabled: true    
14/02/12 08:08:01 INFO namenode.FSNamesystem: Append Enabled: true    
14/02/12 08:08:01 INFO util.GSet: Computing capacity for map INodeMap    
14/02/12 08:08:01 INFO util.GSet: VM type       = 64-bit    
14/02/12 08:08:01 INFO util.GSet: 1.0% max memory = 966.7 MB    
14/02/12 08:08:01 INFO util.GSet: capacity      = 2^20 = 1048576 entries    
14/02/12 08:08:01 INFO namenode.NameNode: Caching file names occuring more than 10 times    
14/02/12 08:08:01 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033    
14/02/12 08:08:01 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0    
14/02/12 08:08:01 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension     = 30000    
14/02/12 08:08:01 INFO namenode.FSNamesystem: Retry cache on namenode is enabled    
14/02/12 08:08:01 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis    
14/02/12 08:08:01 INFO util.GSet: Computing capacity for map Namenode Retry Cache    
14/02/12 08:08:01 INFO util.GSet: VM type       = 64-bit    
14/02/12 08:08:01 INFO util.GSet: 0.029999999329447746% max memory = 966.7 MB    
14/02/12 08:08:01 INFO util.GSet: capacity      = 2^15 = 32768 entries    
14/02/12 08:08:03 INFO common.Storage: Storage directory /usr/local/hadoop/tmp/dfs/name has been successfully formatted.    
14/02/12 08:08:04 INFO namenode.FSImage: Saving image file /usr/local/hadoop/tmp/dfs/name/current/fsimage.ckpt_0000000000000000000 using no compression    
14/02/12 08:08:04 INFO namenode.FSImage: Image file /usr/local/hadoop/tmp/dfs/name/current/fsimage.ckpt_0000000000000000000 of size 196 bytes saved in 0 seconds.    
14/02/12 08:08:04 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0    
14/02/12 08:08:04 INFO util.ExitUtil: Exiting with status 0    
14/02/12 08:08:04 INFO namenode.NameNode: SHUTDOWN_MSG:    
/************************************************************    
SHUTDOWN_MSG: Shutting down NameNode at hadoop101/192.168.80.101    
************************************************************/    
[root@hadoop101 hadoop]#

驗證：

[root@hadoop101 hadoop]# ls tmp/    
dfs  journal    
[root@hadoop101 hadoop]# ls tmp/dfs/    
name

【格式化NameNode會在磁盤產生一個目錄，用于保存NameNode的fsimage、edits等文件】    

6.啟動c1中剛才格式化的NameNode

在hadoop101上執行命令：/usr/local/hadoop/sbin/hadoop-daemon.sh start namenode

命令輸出：

[root@hadoop101 hadoop]# /usr/local/hadoop/sbin/hadoop-daemon.sh start namenode    
starting namenode, logging to /usr/local/hadoop/logs/hadoop-root-namenode-hadoop101.out

驗證：

[root@hadoop101 hadoop]# jps    
23396 JournalNode    
23598 Jps    
23558 NameNode    
22491 QuorumPeerMain    
[root@hadoop101 hadoop]#

【啟動后，產生一個新的java進程NameNode】

通過瀏覽器訪問，也可以看到下圖所示

7.把NameNode的數據從hadoop101同步到hadoop102中

在hadoop102上執行命令：/usr/local/hadoop/bin/hdfs namenode –bootstrapStandby

命令輸出：

[root@hadoop102 hadoop]# /usr/local/hadoop/bin/hdfs namenode -bootstrapStandby    
14/02/12 08:17:44 INFO namenode.NameNode: STARTUP_MSG:    
/************************************************************    
STARTUP_MSG: Starting NameNode    
STARTUP_MSG:   host = hadoop102/192.168.80.102    
STARTUP_MSG:   args = [-bootstrapStandby]    
STARTUP_MSG:   version = 2.2.0    
STARTUP_MSG:   classpath = /usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jsch-0.1.42.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-digester-1.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-el-1.0.jar:/usr/local/hadoop/share/hadoop/common/lib/jets3t-0.6.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/slf4j-api-1.7.5.jar:/usr/local/hadoop/share/hadoop/common/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-lang-2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/jasper-runtime-5.5.23.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-xc-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/common/lib/activation-1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-httpclient-3.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/usr/local/hadoop/share/hadoop/common/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/lib/jsp-api-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-configuration-1.6.jar:/usr/local/hadoop/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/usr/local/hadoop/share/hadoop/common/lib/zookeeper-3.4.5.jar:/usr/local/hadoop/share/hadoop/common/lib/hadoop-auth-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/common/lib/stax-api-1.0.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-collections-3.2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/junit-4.8.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/jsr305-1.3.9.jar:/usr/local/hadoop/share/hadoop/common/lib/mockito-all-1.8.5.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-logging-1.1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-math-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-json-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-net-3.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/common/lib/jasper-compiler-5.5.23.jar:/usr/local/hadoop/share/hadoop/common/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/common/lib/xmlenc-0.52.jar:/usr/local/hadoop/share/hadoop/common/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/common/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-jaxrs-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/jettison-1.1.jar:/usr/local/hadoop/share/hadoop/common/hadoop-common-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/common/hadoop-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/hadoop-nfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-el-1.0.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-lang-2.5.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jasper-runtime-5.5.23.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jsp-api-2.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jsr305-1.3.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-logging-1.1.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-nfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guice-3.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/hamcrest-core-1.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/yarn/lib/aopalliance-1.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/javax.inject-1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/yarn/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/junit-4.10.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/yarn/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-api-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-tests-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-site-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-client-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/guice-3.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/hamcrest-core-1.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/javax.inject-1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/junit-4.10.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.2.0.jar:/usr/local/hadoop/contrib/capacity-scheduler/*.jar    
STARTUP_MSG:   build = Unknown -r Unknown; compiled by 'root' on 2013-12-26T08:50Z    
STARTUP_MSG:   java = 1.7.0_45    
************************************************************/    
14/02/12 08:17:44 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]    
=====================================================    
About to bootstrap Standby ID hadoop102 from:    
          Nameservice ID: cluster1    
       Other Namenode ID: hadoop101    
 Other NN's HTTP address: hadoop101:50070    
 Other NN's IPC  address: hadoop101/192.168.80.101:9000    
            Namespace ID: 1496717450    
           Block pool ID: BP-2022554027-192.168.80.101-1392164061887    
              Cluster ID: c1    
          Layout version: -47    
=====================================================    
14/02/12 08:17:48 INFO common.Storage: Storage directory /usr/local/hadoop/tmp/dfs/name has been successfully formatted.    
14/02/12 08:17:48 INFO namenode.TransferFsImage: Opening connection to http://hadoop101:50070/getimage?getimage=1&txid=0&storageInfo=-47:1496717450:0:c1    
14/02/12 08:17:48 INFO namenode.TransferFsImage: Transfer took 0.18s at 0.00 KB/s    
14/02/12 08:17:48 INFO namenode.TransferFsImage: Downloaded file fsimage.ckpt_0000000000000000000 size 196 bytes.    
14/02/12 08:17:48 INFO util.ExitUtil: Exiting with status 0    
14/02/12 08:17:48 INFO namenode.NameNode: SHUTDOWN_MSG:    
/************************************************************    
SHUTDOWN_MSG: Shutting down NameNode at hadoop102/192.168.80.102    
************************************************************/    
[root@hadoop102 hadoop]#    

驗證：

[root@hadoop102 hadoop]# ls tmp/    
dfs  journal    
[root@hadoop102 hadoop]# ls tmp/dfs/    
name    
[root@hadoop102 hadoop]#

【在tmp目錄下產生一個目錄name】    

8.啟動c1中另一個Namenode

在hadoop102上執行命令：/usr/local/hadoop/sbin/hadoop-daemon.sh start namenode

命令輸出：

[root@hadoop102 hadoop]# /usr/local/hadoop/sbin/hadoop-daemon.sh start namenode    
starting namenode, logging to /usr/local/hadoop/logs/hadoop-root-namenode-hadoop102.out

驗證：

[root@hadoop102 hadoop]# jps    
12355 JournalNode    
12611 Jps    
12573 NameNode    
12081 QuorumPeerMain    
[root@hadoop102 hadoop]#

【產生java進程NameNode】

通過瀏覽器訪問，也可以看到下圖所示

9.格式化集群c2的一個NameNode

從hadoop103和hadoop104中任選一個即可，這里選擇的是hadoop103

在hadoop103執行以下命令：/usr/local/hadoop/bin/hdfs namenode -format -clusterId c2

命令輸出：

[root@hadoop103 hadoop]# /usr/local/hadoop/bin/hdfs namenode -format -clusterId c2    
14/02/12 08:23:28 INFO namenode.NameNode: STARTUP_MSG:    
/************************************************************    
STARTUP_MSG: Starting NameNode    
STARTUP_MSG:   host = hadoop103/192.168.80.103    
STARTUP_MSG:   args = [-format, -clusterId, c2]    
STARTUP_MSG:   version = 2.2.0    
STARTUP_MSG:   classpath = /usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jsch-0.1.42.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-digester-1.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-el-1.0.jar:/usr/local/hadoop/share/hadoop/common/lib/jets3t-0.6.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/slf4j-api-1.7.5.jar:/usr/local/hadoop/share/hadoop/common/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-lang-2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/jasper-runtime-5.5.23.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-xc-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/common/lib/activation-1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-httpclient-3.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/usr/local/hadoop/share/hadoop/common/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/lib/jsp-api-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-configuration-1.6.jar:/usr/local/hadoop/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/usr/local/hadoop/share/hadoop/common/lib/zookeeper-3.4.5.jar:/usr/local/hadoop/share/hadoop/common/lib/hadoop-auth-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/common/lib/stax-api-1.0.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-collections-3.2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/junit-4.8.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/jsr305-1.3.9.jar:/usr/local/hadoop/share/hadoop/common/lib/mockito-all-1.8.5.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-logging-1.1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-math-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-json-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-net-3.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/common/lib/jasper-compiler-5.5.23.jar:/usr/local/hadoop/share/hadoop/common/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/common/lib/xmlenc-0.52.jar:/usr/local/hadoop/share/hadoop/common/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/common/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-jaxrs-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/jettison-1.1.jar:/usr/local/hadoop/share/hadoop/common/hadoop-common-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/common/hadoop-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/hadoop-nfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-el-1.0.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-lang-2.5.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jasper-runtime-5.5.23.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jsp-api-2.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jsr305-1.3.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-logging-1.1.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-nfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guice-3.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/hamcrest-core-1.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/yarn/lib/aopalliance-1.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/javax.inject-1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/yarn/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/junit-4.10.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/yarn/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-api-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-tests-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-site-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-client-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/guice-3.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/hamcrest-core-1.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/javax.inject-1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/junit-4.10.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.2.0.jar:/usr/local/hadoop/contrib/capacity-scheduler/*.jar    
STARTUP_MSG:   build = Unknown -r Unknown; compiled by 'root' on 2013-12-26T08:50Z    
STARTUP_MSG:   java = 1.7.0_45    
************************************************************/    
14/02/12 08:23:28 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]    
14/02/12 08:23:30 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable    
Formatting using clusterid: c2    
14/02/12 08:23:31 INFO namenode.HostFileManager: read includes:    
HostSet(    
)    
14/02/12 08:23:31 INFO namenode.HostFileManager: read excludes:    
HostSet(    
)    
14/02/12 08:23:31 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit=1000    
14/02/12 08:23:31 INFO util.GSet: Computing capacity for map BlocksMap    
14/02/12 08:23:31 INFO util.GSet: VM type       = 64-bit    
14/02/12 08:23:31 INFO util.GSet: 2.0% max memory = 966.7 MB    
14/02/12 08:23:31 INFO util.GSet: capacity      = 2^21 = 2097152 entries    
14/02/12 08:23:31 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false    
14/02/12 08:23:31 INFO blockmanagement.BlockManager: defaultReplication         = 2    
14/02/12 08:23:31 INFO blockmanagement.BlockManager: maxReplication             = 512    
14/02/12 08:23:31 INFO blockmanagement.BlockManager: minReplication             = 1    
14/02/12 08:23:31 INFO blockmanagement.BlockManager: maxReplicationStreams      = 2    
14/02/12 08:23:31 INFO blockmanagement.BlockManager: shouldCheckForEnoughRacks  = false    
14/02/12 08:23:31 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000    
14/02/12 08:23:31 INFO blockmanagement.BlockManager: encryptDataTransfer        = false    
14/02/12 08:23:31 INFO namenode.FSNamesystem: fsOwner             = root (auth:SIMPLE)    
14/02/12 08:23:31 INFO namenode.FSNamesystem: supergroup          = supergroup    
14/02/12 08:23:31 INFO namenode.FSNamesystem: isPermissionEnabled = true    
14/02/12 08:23:31 INFO namenode.FSNamesystem: Determined nameservice ID: cluster2    
14/02/12 08:23:31 INFO namenode.FSNamesystem: HA Enabled: true    
14/02/12 08:23:31 INFO namenode.FSNamesystem: Append Enabled: true    
14/02/12 08:23:31 INFO util.GSet: Computing capacity for map INodeMap    
14/02/12 08:23:31 INFO util.GSet: VM type       = 64-bit    
14/02/12 08:23:31 INFO util.GSet: 1.0% max memory = 966.7 MB    
14/02/12 08:23:31 INFO util.GSet: capacity      = 2^20 = 1048576 entries    
14/02/12 08:23:31 INFO namenode.NameNode: Caching file names occuring more than 10 times    
14/02/12 08:23:31 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033    
14/02/12 08:23:31 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0    
14/02/12 08:23:31 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension     = 30000    
14/02/12 08:23:31 INFO namenode.FSNamesystem: Retry cache on namenode is enabled    
14/02/12 08:23:31 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis    
14/02/12 08:23:31 INFO util.GSet: Computing capacity for map Namenode Retry Cache    
14/02/12 08:23:31 INFO util.GSet: VM type       = 64-bit    
14/02/12 08:23:31 INFO util.GSet: 0.029999999329447746% max memory = 966.7 MB    
14/02/12 08:23:31 INFO util.GSet: capacity      = 2^15 = 32768 entries    
14/02/12 08:23:33 INFO common.Storage: Storage directory /usr/local/hadoop/tmp/dfs/name has been successfully formatted.    
14/02/12 08:23:33 INFO namenode.FSImage: Saving image file /usr/local/hadoop/tmp/dfs/name/current/fsimage.ckpt_0000000000000000000 using no compression    
14/02/12 08:23:33 INFO namenode.FSImage: Image file /usr/local/hadoop/tmp/dfs/name/current/fsimage.ckpt_0000000000000000000 of size 196 bytes saved in 0 seconds.    
14/02/12 08:23:33 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0    
14/02/12 08:23:33 INFO util.ExitUtil: Exiting with status 0    
14/02/12 08:23:33 INFO namenode.NameNode: SHUTDOWN_MSG:    
/************************************************************    
SHUTDOWN_MSG: Shutting down NameNode at hadoop103/192.168.80.103    
************************************************************/    
[root@hadoop103 hadoop]#

【上面的輸出可以看到/usr/local/hadoop/tmp/dfs/name 被成功格式化了】

驗證：

[root@hadoop103 hadoop]# ls tmp/  
dfs  journal  
[root@hadoop103 hadoop]# ls tmp/dfs/  
name  
[root@hadoop103 hadoop]#

10.啟動c2中剛才格式化的NameNode

在hadoop103上執行命令：/usr/local/hadoop/sbin/hadoop-daemon.sh start namenode

命令輸出：

[root@hadoop103 hadoop]# /usr/local/hadoop/sbin/hadoop-daemon.sh start namenode    
starting namenode, logging to /usr/local/hadoop/logs/hadoop-root-namenode-hadoop103.out    
[root@hadoop103 hadoop]#

驗證：

[root@hadoop103 hadoop]# jps    
11290 JournalNode    
11560 NameNode    
10972 QuorumPeerMain    
11600 Jps    
[root@hadoop103 hadoop]#

也可以通過瀏覽器訪問http://hadoop103:50070，可以看到如上圖頁面，此處省略截圖。

11.把NameNode的數據從hadoop103同步到hadoop104中

在hadoop104上執行命令：/usr/local/hadoop/bin/hdfs namenode –bootstrapStandby

命令輸出：

[root@hadoop104 hadoop]# /usr/local/hadoop/bin/hdfs namenode -bootstrapStandby  
14/02/12 08:28:30  INFO namenode.NameNode: STARTUP_MSG:  
/************************************************************  
STARTUP_MSG: Starting NameNode  
STARTUP_MSG:   host = hadoop104/192.168.80.104  
STARTUP_MSG:   args = [-bootstrapStandby]  
STARTUP_MSG:   version = 2.2.0  
STARTUP_MSG:   classpath = /usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jsch-0.1.42.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-digester-1.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-el-1.0.jar:/usr/local/hadoop/share/hadoop/common/lib/jets3t-0.6.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/slf4j-api-1.7.5.jar:/usr/local/hadoop/share/hadoop/common/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-lang-2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/jasper-runtime-5.5.23.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-xc-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/common/lib/activation-1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-httpclient-3.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/usr/local/hadoop/share/hadoop/common/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/lib/jsp-api-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-configuration-1.6.jar:/usr/local/hadoop/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/usr/local/hadoop/share/hadoop/common/lib/zookeeper-3.4.5.jar:/usr/local/hadoop/share/hadoop/common/lib/hadoop-auth-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/common/lib/stax-api-1.0.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-collections-3.2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/junit-4.8.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/jsr305-1.3.9.jar:/usr/local/hadoop/share/hadoop/common/lib/mockito-all-1.8.5.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-logging-1.1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-math-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-json-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-net-3.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/common/lib/jasper-compiler-5.5.23.jar:/usr/local/hadoop/share/hadoop/common/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/common/lib/xmlenc-0.52.jar:/usr/local/hadoop/share/hadoop/common/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/common/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-jaxrs-1.8.8.jar:/usr/local/hadoop/share/hadoop/common/lib/jettison-1.1.jar:/usr/local/hadoop/share/hadoop/common/hadoop-common-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/common/hadoop-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/common/hadoop-nfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-el-1.0.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-lang-2.5.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jasper-runtime-5.5.23.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jsp-api-2.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jsr305-1.3.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-logging-1.1.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-nfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guice-3.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/hamcrest-core-1.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/yarn/lib/aopalliance-1.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/javax.inject-1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/yarn/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/junit-4.10.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/yarn/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-api-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-tests-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-site-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-client-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-common-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/guice-3.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jackson-core-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/hamcrest-core-1.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/hadoop-annotations-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/javax.inject-1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/commons-io-2.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.8.8.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/junit-4.10.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.2.0-tests.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.2.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.2.0.jar:/usr/local/hadoop/contrib/capacity-scheduler/*.jar  
STARTUP_MSG:   build = Unknown -r Unknown; compiled by 'root' on 2013-12-26T08:50Z  
STARTUP_MSG:   java = 1.7.0_45  
 

************************************************************/    
14/02/12 08:28:35 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]    
=====================================================    
About to bootstrap Standby ID hadoop104 from:    
          Nameservice ID: cluster2    
       Other Namenode ID: hadoop103    
 Other NN's HTTP address: hadoop103:50070    
 Other NN's IPC  address: hadoop103/192.168.80.103:9000    
            Namespace ID: 698609742    
           Block pool ID: BP-1304582337-192.168.80.103-1392164613254    
              Cluster ID: c2    
          Layout version: -47    
=====================================================    
14/02/12 08:28:39 INFO common.Storage: Storage directory /usr/local/hadoop/tmp/dfs/name has been successfully formatted.    
14/02/12 08:28:39 INFO namenode.TransferFsImage: Opening connection to http://hadoop103:50070/getimage?getimage=1&txid=0&storageInfo=-47:698609742:0:c2    
14/02/12 08:28:40 INFO namenode.TransferFsImage: Transfer took 0.67s at 0.00 KB/s    
14/02/12 08:28:40 INFO namenode.TransferFsImage: Downloaded file fsimage.ckpt_0000000000000000000 size 196 bytes.    
14/02/12 08:28:40 INFO util.ExitUtil: Exiting with status 0    
14/02/12 08:28:40 INFO namenode.NameNode: SHUTDOWN_MSG:    
/************************************************************    
SHUTDOWN_MSG: Shutting down NameNode at hadoop104/192.168.80.104    
************************************************************/    

驗證：

[root@hadoop104 hadoop]# pwd    
/usr/local/hadoop    
[root@hadoop104 hadoop]# ls tmp/    
dfs    
[root@hadoop104 hadoop]# ls tmp/dfs/    
name    
[root@hadoop104 hadoop]#    

12.啟動c2中另一個Namenode

在hadoop104上執行命令：/usr/local/hadoop/sbin/hadoop-daemon.sh start namenode

命令輸出：

[root@hadoop104 hadoop]# /usr/local/hadoop/sbin/hadoop-daemon.sh start namenode    
starting namenode, logging to /usr/local/hadoop/logs/hadoop-root-namenode-hadoop104.out    
[root@hadoop104 hadoop]#

驗證：

[root@hadoop104 hadoop]# jps    
8822 NameNode    
8975 Jps    
[root@hadoop104 hadoop]#

也可以通過瀏覽器訪問http://hadoop104:50070，可以看到如上圖頁面，此處省略截圖。    

13.啟動所有的DataNode

在hadoop101上執行命令：/usr/local/hadoop/sbin/hadoop-daemons.sh start datanode

命令輸出：

[root@hadoop101 hadoop]# /usr/local/hadoop/sbin/hadoop-daemons.sh start datanode    
hadoop101: starting datanode, logging to /usr/local/hadoop/logs/hadoop-root-datanode-hadoop101.out    
hadoop103: starting datanode, logging to /usr/local/hadoop/logs/hadoop-root-datanode-hadoop103.out    
hadoop102: starting datanode, logging to /usr/local/hadoop/logs/hadoop-root-datanode-hadoop102.out    
hadoop104: starting datanode, logging to /usr/local/hadoop/logs/hadoop-root-datanode-hadoop104.out    
[root@hadoop101 hadoop]#

【上述命令會在四個節點分別啟動DataNode進程】

驗證（以hadoop101為例）：

[root@hadoop101 hadoop]# jps    
23396 JournalNode    
24302 Jps    
24232 DataNode    
23558 NameNode    
22491 QuorumPeerMain    
[root@hadoop101 hadoop]#

【可以看到java進程DataNode】    

14.啟動Yarn

在hadoop101上執行命令：/usr/local/hadoop/sbin/start-yarn.sh

命令輸出：

[root@hadoop101 hadoop]# /usr/local/hadoop/sbin/start-yarn.sh    
starting yarn daemons    
starting resourcemanager, logging to /usr/local/hadoop/logs/yarn-root-resourcemanager-hadoop101.out    
hadoop104: starting nodemanager, logging to /usr/local/hadoop/logs/yarn-root-nodemanager-hadoop104.out    
hadoop103: starting nodemanager, logging to /usr/local/hadoop/logs/yarn-root-nodemanager-hadoop103.out    
hadoop102: starting nodemanager, logging to /usr/local/hadoop/logs/yarn-root-nodemanager-hadoop102.out    
hadoop101: starting nodemanager, logging to /usr/local/hadoop/logs/yarn-root-nodemanager-hadoop101.out    
[root@hadoop101 hadoop]#

驗證：

[root@hadoop101 hadoop]# jps    
23396 JournalNode    
25154 ResourceManager    
25247 NodeManager    
24232 DataNode    
23558 NameNode    
22491 QuorumPeerMain    
25281 Jps    
[root@hadoop101 hadoop]#

【產生java進程ResourceManager和NodeManager】

也可以通過瀏覽器訪問，如下圖

15.啟動ZooKeeperFailoverController

在hadoop101、hadoop102、hadoop103、hadoop104上分別執行命令：/usr/local/hadoop/sbin/hadoop-daemon.sh start zkfc

命令輸出（以hadoop101為例）：

[root@hadoop101 hadoop]# /usr/local/hadoop/sbin/hadoop-daemon.sh start zkfc    
starting zkfc, logging to /usr/local/hadoop/logs/hadoop-root-zkfc-hadoop101.out    
[root@hadoop101 hadoop]#

驗證（以hadoop101為例）：

[root@hadoop101 hadoop]# jps    
24599 DFSZKFailoverController    
23396 JournalNode    
24232 DataNode    
23558 NameNode    
22491 QuorumPeerMain    
24654 Jps    
[root@hadoop101 hadoop]#

【產生java進程DFSZKFailoverController】

16.驗證HDFS是否好用

在任意一個節點上執行以下命令（這里以hadoop101為例），把數據上傳到HDFS集群中

[root@hadoop101 hadoop]# pwd    
/usr/local/hadoop/etc/hadoop    
[root@hadoop101 hadoop]# ls    
capacity-scheduler.xml      hadoop-metrics.properties  httpfs-site.xml             ssl-server.xml.example    
configuration.xsl           hadoop-policy.xml          log4j.properties            startall.sh    
container-executor.cfg      hdfs2-site.xml             mapred-env.sh               yarn-env.sh    
core-site.xml               hdfs-site.xml              mapred-queues.xml.template  yarn-site.xml    
fairscheduler.xml           httpfs-env.sh              mapred-site.xml             zookeeper.out    
hadoop-env.sh               httpfs-log4j.properties    slaves    
hadoop-metrics2.properties  httpfs-signature.secret    ssl-client.xml.example    
[root@hadoop101 hadoop]# hadoop fs -put core-site.xml /

【上傳到集群中，默認是上傳到HDFS聯盟的c1集群中】

驗證：    
[root@hadoop101 hadoop]# hadoop fs -ls /    
Found 1 items    
-rw-r--r--   2 root supergroup        446 2014-02-12 09:00 /core-site.xml    
[root@hadoop101 hadoop]#    
也可以通過瀏覽器查看，數據默認是放在第一個集群中的

17.驗證Yarn是否好用

在hadoop101上執行以下命令 hadoop jar /usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar   wordcount /core-site.xml /out

命令輸出：

[root@hadoop101 hadoop]# hadoop jar /usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar   wordcount /core-site.xml /out    
14/02/12 11:43:55 INFO client.RMProxy: Connecting to ResourceManager at hadoop101/192.168.80.101:8032    
14/02/12 11:43:59 INFO input.FileInputFormat: Total input paths to process : 1    
14/02/12 11:43:59 INFO mapreduce.JobSubmitter: number of splits:1    
14/02/12 11:43:59 INFO Configuration.deprecation: user.name is deprecated. Instead, use mapreduce.job.user.name    
14/02/12 11:43:59 INFO Configuration.deprecation: mapred.jar is deprecated. Instead, use mapreduce.job.jar    
14/02/12 11:43:59 INFO Configuration.deprecation: mapred.output.value.class is deprecated. Instead, use mapreduce.job.output.value.class    
14/02/12 11:43:59 INFO Configuration.deprecation: mapreduce.combine.class is deprecated. Instead, use mapreduce.job.combine.class    
14/02/12 11:43:59 INFO Configuration.deprecation: mapreduce.map.class is deprecated. Instead, use mapreduce.job.map.class    
14/02/12 11:43:59 INFO Configuration.deprecation: mapred.job.name is deprecated. Instead, use mapreduce.job.name    
14/02/12 11:43:59 INFO Configuration.deprecation: mapreduce.reduce.class is deprecated. Instead, use mapreduce.job.reduce.class    
14/02/12 11:43:59 INFO Configuration.deprecation: mapred.input.dir is deprecated. Instead, use mapreduce.input.fileinputformat.inputdir    
14/02/12 11:43:59 INFO Configuration.deprecation: mapred.output.dir is deprecated. Instead, use mapreduce.output.fileoutputformat.outputdir    
14/02/12 11:43:59 INFO Configuration.deprecation: mapred.map.tasks is deprecated. Instead, use mapreduce.job.maps    
14/02/12 11:43:59 INFO Configuration.deprecation: mapred.output.key.class is deprecated. Instead, use mapreduce.job.output.key.class    
14/02/12 11:43:59 INFO Configuration.deprecation: mapred.working.dir is deprecated. Instead, use mapreduce.job.working.dir    
14/02/12 11:44:01 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1392169506119_0002    
14/02/12 11:44:04 INFO impl.YarnClientImpl: Submitted application application_1392169506119_0002 to ResourceManager at hadoop101/192.168.80.101:8032    
14/02/12 11:44:05 INFO mapreduce.Job: The url to track the job: http://hadoop101:8088/proxy/application_1392169506119_0002/    
14/02/12 11:44:05 INFO mapreduce.Job: Running job: job_1392169506119_0002    
14/02/12 11:44:41 INFO mapreduce.Job: Job job_1392169506119_0002 running in uber mode : false    
14/02/12 11:44:41 INFO mapreduce.Job:  map 0% reduce 0%    
14/02/12 11:45:37 INFO mapreduce.Job:  map 100% reduce 0%    
14/02/12 11:46:54 INFO mapreduce.Job:  map 100% reduce 100%    
14/02/12 11:47:01 INFO mapreduce.Job: Job job_1392169506119_0002 completed successfully    
14/02/12 11:47:02 INFO mapreduce.Job: Counters: 43    
       File System Counters    
               FILE: Number of bytes read=472    
               FILE: Number of bytes written=164983    
               FILE: Number of read operations=0    
               FILE: Number of large read operations=0    
               FILE: Number of write operations=0    
               HDFS: Number of bytes read=540    
               HDFS: Number of bytes written=402    
               HDFS: Number of read operations=6    
               HDFS: Number of large read operations=0    
               HDFS: Number of write operations=2    
       Job Counters    
               Launched map tasks=1    
               Launched reduce tasks=1    
               Data-local map tasks=1    
               Total time spent by all maps in occupied slots (ms)=63094    
               Total time spent by all reduces in occupied slots (ms)=57228    
       Map-Reduce Framework    
               Map input records=17    
               Map output records=20    
               Map output bytes=496    
               Map output materialized bytes=472    
               Input split bytes=94    
               Combine input records=20    
               Combine output records=16    
               Reduce input groups=16    
               Reduce shuffle bytes=472    
               Reduce input records=16    
               Reduce output records=16    
               Spilled Records=32    
               Shuffled Maps =1    
               Failed Shuffles=0    
               Merged Map outputs=1    
               GC time elapsed (ms)=632    
               CPU time spent (ms)=3010    
               Physical memory (bytes) snapshot=255528960    
               Virtual memory (bytes) snapshot=1678471168    
               Total committed heap usage (bytes)=126660608    
       Shuffle Errors    
               BAD_ID=0    
               CONNECTION=0    
               IO_ERROR=0    
               WRONG_LENGTH=0    
               WRONG_MAP=0    
               WRONG_REDUCE=0    
       File Input Format Counters    
               Bytes Read=446    
       File Output Format Counters    
               Bytes Written=402    
[root@hadoop101 hadoop]#    
驗證：

[root@hadoop101 hadoop]# hadoop fs -ls /out    
Found 2 items    
-rw-r--r--   2 root supergroup          0 2014-02-12 11:46 /out/_SUCCESS    
-rw-r--r--   2 root supergroup        402 2014-02-12 11:46 /out/part-r-00000    
[root@hadoop101 hadoop]# hadoop fs -text /out/part-r-00000    
</configuration>        1    
</property>     3    
<?xml   1    
<?xml-stylesheet        1    
<configuration> 1    
<name>fs.defaultFS</name>       1    
<name>ha.zookeeper.quorum</name>        1    
<name>hadoop.tmp.dir</name>     1    
<property>      3    
<value>/usr/local/hadoop/tmp</value>    1    
<value>hadoop101:2181,hadoop102:2181,hadoop103:2181</value>     1    
<value>hdfs://cluster1</value>  1    
encoding="UTF-8"?>      1    
href="configuration.xsl"?>      1    
type="text/xsl" 1    
version="1.0"   1    
[root@hadoop101 hadoop]#    

18.驗證HA的故障自動轉移是否好用

觀察cluster1的兩個NameNode的狀態，hadoop101的狀態是standby，hadoop102的狀態是active，如下圖。

下面我們殺死hadoop102的NameNode進程，觀察hadoop101的狀態是否會自動切換成active。

在hadoop102執行以下命令

[root@hadoop102 hadoop]# jps    
13389 DFSZKFailoverController    
12355 JournalNode    
13056 DataNode    
15660 Jps    
14496 NodeManager    
12573 NameNode    
12081 QuorumPeerMain    
[root@hadoop102 hadoop]# kill -9 12573    
[root@hadoop102 hadoop]# jps    
13389 DFSZKFailoverController    
12355 JournalNode    
13056 DataNode    
14496 NodeManager    
15671 Jps    
12081 QuorumPeerMain    
[root@hadoop102 hadoop]#

再觀察頁面，發現如下圖所示

證明HDFS的高可靠是可用的。

到此，相信大家對“hadoop2的automatic HA+Federation+Yarn怎么配置”有了更深的了解，不妨來實際操作一番吧！這里是億速云網站，更多相關內容可以進入相關頻道進行查詢，關注我們，繼續學習！