Hadoop2 基本配置教程
| 本文为安装指导，在安装过程中，我们可以注意一下问题： 1.当有多个HDFS集群同时工作时，用户如果不写集群名称，那么默认使用哪个？通过那个文件来进行配置？ 2.NameNode、DataNode、JournalNode等存放数据的默认公共目录在什么位置？ 3.那个文件可以配置ZooKeeper集群的地址和端口，配置过程中有限制？ 4.DataNode存储block的副本数量有没有数量限制？最大数是多少？ 5.哪一个配置项，指定某个集群是否启动自动故障恢复，即当NameNode出故障时，是否自动切换到另一台NameNode 思考： hadoop2健壮性比较强，我们该如何去验证其强壮性 大家从官网下载的apache hadoop2.2.0的代码是32位操作系统下编译的，不能使用64位的jdk。我下面部署的hadoop代码是自己的64位机器上重新编译过的。服务器都是64位的，本配置尽量模拟真实环境。 在这里我们选用4台机器进行示范，各台机器的职责如下表格所示 
配置文件一共包括6个，分别是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，其余文件在四个节点的配置是完全一样的，可以复制。 文件hadoop-env.sh 就是修改这一行内容，修改后的结果如下 export JAVA_HOME=/usr/local/jdk 【这里的JAVA_HOME的值是jdk的安装路径。请修改为自己的安装路径】 文件core-site.xml 【这里的值指的是默认的HDFS路径。当有多个HDFS集群同时工作时，用户如果不写集群名称，在这里指定！该值来自于hdfs-site.xml中的配置】 【这里的路径默认是NameNode、DataNode、JournalNode等存放数据的公共目录。用户也可以自己单独指定这三类节点的目录。】 【这里是ZooKeeper集群的地址和端口。注意，数量一定是奇数，且不少于三个节点】 ---------------------------------------------------------------------------------------------------------------------------------------------------- 集群c1的文件hdfs-site.xml 该文件只配置在hadoop101和hadoop102上。 【指定DataNode存储block的副本数量。默认值是3个，我们现在有4个DataNode，该值不大于4即可。】 【使用federation时，使用了2个HDFS集群。这里抽象出两个NameService实际上就是给这2个HDFS集群起了个别名。名字可以随便起，相互不重复即可】 【指定NameService是cluster1时的namenode有哪些，这里的值也是逻辑名称，名字随便起，相互不重复即可】 【指定hadoop101的RPC地址】 【指定hadoop101的http地址】 【指定hadoop102的RPC地址】 【指定hadoop102的http地址】 【指定cluster1的两个NameNode共享edits文件目录时，使用的JournalNode集群信息】 【指定cluster1是否启动自动故障恢复，即当NameNode出故障时，是否自动切换到另一台NameNode】 【指定cluster1出故障时，哪个实现类负责执行故障切换】 【指定NameService是cluster2时，两个NameNode是谁，这里是逻辑名称，不重复即可。以下配置与cluster1几乎全部相似，不再添加注释】 【指定JournalNode集群在对NameNode的目录进行共享时，自己存储数据的磁盘路径】 【一旦需要NameNode切换，使用ssh方式进行操作】 【如果使用ssh进行故障切换，使用ssh通信时用的密钥存储的位置】 --------------------------------------------------------------------------------------------------------------------------------------------------- 集群c2的文件hdfs-site.xml 该文件只配置在hadoop103和hadoop104上。 该文件与c1中的hdfs-site.xml配置内容完全相同，只有注释位置不一样，不要随便改 文件mapred-site.xml 【指定运行mapreduce的环境是yarn，与hadoop1截然不同的地方】 文件yarn-site.xml 【自定ResourceManager的地址，还是单点，这是隐患】 文件slaves hadoop101 hadoop102 hadoop103 hadoop104 【指定所有的DataNode节点列表，每行一个节点名称】 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。其余文件在各个节点都相同。 ------------------------------------------------------------------------------------------------------------------------------------------------- 启动过程 启动时，要非常小心，请按照这里描述的步骤做，每一步要检查自己的操作是否正确。 1.首先检查各个节点的配置文件是否正确 特别要注意hdfs-site.xml文件，在c1和c2中是不同的。 2.启动ZooKeeper集群 在hadoop101、hadoop102、hadoop103上分别执行命令：zkServer.sh start 命令输出(以hadoop101为例)： [root@hadoop101 hadoop]# zkServer.sh status JMX enabled by default Using config: /usr/local/zookeeper/bin/../conf/zoo.cfg Mode: follower 三个节点都执行完启动命令后，在hadoop101执行以下验证。 验证： [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= 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 中只有一个节点zookeeper】 --------------------------------------------------------------------------------------------------------------------------------------------------- 3.格式化ZooKeeper集群，目的是在ZooKeeper集群上建立HA的相应节点。 在hadoop101上执行命令：/usr/local/hadoop/bin/hdfs zkfc –formatZK 命令输出： [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= 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]# 验证： [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= 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集群中建立一个节点，用于保存集群c1中NameNode的状态数据】 --------------------------------------------------------------------------------------------------------------------------------------------------- 在hadoop103上执行命令：/usr/local/hadoop/bin/hdfs zkfc –formatZK 命令输出： [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= 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 验证： [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= 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，产生一个新的ZK节点cluster2】 ---------------------------------------------------------------------------------------------------------------------------------------------------- 4.启动JournalNode集群 在hadoop101、hadoop102、hadoop103上分别执行命令：/usr/local/hadoop/sbin/hadoop-daemon.sh start journalnode 命令输出(以hadoop101为例)： [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]# 在每个节点执行完启动命令后，每个节点都执行以下验证。 验证(以hadoop101为例)： [root@hadoop101 hadoop]# jps 23396 JournalNode 23598 Jps 22491 QuorumPeerMain [root@hadoop101 hadoop]# 【产生一个java进程JournalNode】 查看一下目录结构 [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]# 【启动JournalNode后，会在本地磁盘产生一个目录，用户保存NameNode的edits文件的数据】 5.格式化集群c1的一个NameNode 从hadoop101和hadoop102中任选一个即可，这里选择的是hadoop101 在hadoop101执行以下命令：/usr/local/hadoop/bin/hdfs namenode -format -clusterId c1 命令输出： [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]# 验证： [root@hadoop101 hadoop]# ls tmp/ dfs journal [root@hadoop101 hadoop]# ls tmp/dfs/ name 【格式化NameNode会在磁盘产生一个目录，用于保存NameNode的fsimage、edits等文件】 6.启动c1中刚才格式化的NameNode 在hadoop101上执行命令：/usr/local/hadoop/sbin/hadoop-daemon.sh start namenode 命令输出： [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 验证： [root@hadoop101 hadoop]# jps 23396 JournalNode 23598 Jps 23558 NameNode 22491 QuorumPeerMain [root@hadoop101 hadoop]# 【启动后，产生一个新的java进程NameNode】 通过浏览器访问，也可以看到下图所示  ---------------------------------------------------------------------------------------------------------------------------------------------------- 7.把NameNode的数据从hadoop101同步到hadoop102中 在hadoop102上执行命令：/usr/local/hadoop/bin/hdfs namenode –bootstrapStandby 命令输出： [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]# 验证： [root@hadoop102 hadoop]# ls tmp/ dfs journal [root@hadoop102 hadoop]# ls tmp/dfs/ name [root@hadoop102 hadoop]# 【在tmp目录下产生一个目录name】 8.启动c1中另一个Namenode 在hadoop102上执行命令：/usr/local/hadoop/sbin/hadoop-daemon.sh start namenode 命令输出： [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 验证： [root@hadoop102 hadoop]# jps 12355 JournalNode 12611 Jps 12573 NameNode 12081 QuorumPeerMain [root@hadoop102 hadoop]# 【产生java进程NameNode】 通过浏览器访问，也可以看到下图所示  9.格式化集群c2的一个NameNode 从hadoop103和hadoop104中任选一个即可，这里选择的是hadoop103 在hadoop103执行以下命令：/usr/local/hadoop/bin/hdfs namenode -format -clusterId c2 命令输出： [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]# 【上面的输出可以看到/usr/local/hadoop/tmp/dfs/name 被成功格式化了】 验证： [root@hadoop103 hadoop]# ls tmp/ dfs journal [root@hadoop103 hadoop]# ls tmp/dfs/ name [root@hadoop103 hadoop]# 10.启动c2中刚才格式化的NameNode 在hadoop103上执行命令：/usr/local/hadoop/sbin/hadoop-daemon.sh start namenode 命令输出： [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]# 验证： [root@hadoop103 hadoop]# jps 11290 JournalNode 11560 NameNode 10972 QuorumPeerMain 11600 Jps [root@hadoop103 hadoop]# 也可以通过浏览器访问http://hadoop103:50070，可以看到如上图页面，此处省略截图。 11.把NameNode的数据从hadoop103同步到hadoop104中 在hadoop104上执行命令：/usr/local/hadoop/bin/hdfs namenode –bootstrapStandby 命令输出： [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 ************************************************************/ 验证： [root@hadoop104 hadoop]# pwd /usr/local/hadoop [root@hadoop104 hadoop]# ls tmp/ dfs [root@hadoop104 hadoop]# ls tmp/dfs/ name [root@hadoop104 hadoop]# ---------------------------------------------------------------------------------------------------------------------------------------------------- 12.启动c2中另一个Namenode 在hadoop104上执行命令：/usr/local/hadoop/sbin/hadoop-daemon.sh start namenode 命令输出： [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]# 验证： [root@hadoop104 hadoop]# jps 8822 NameNode 8975 Jps [root@hadoop104 hadoop]# 也可以通过浏览器访问http://hadoop104:50070，可以看到如上图页面，此处省略截图。 13.启动所有的DataNode 在hadoop101上执行命令：/usr/local/hadoop/sbin/hadoop-daemons.sh start datanode 命令输出： [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]# 【上述命令会在四个节点分别启动DataNode进程】 验证（以hadoop101为例）： [root@hadoop101 hadoop]# jps 23396 JournalNode 24302 Jps 24232 DataNode 23558 NameNode 22491 QuorumPeerMain [root@hadoop101 hadoop]# 【可以看到java进程DataNode】 14.启动Yarn 在hadoop101上执行命令：/usr/local/hadoop/sbin/start-yarn.sh 命令输出： [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]# 验证： [root@hadoop101 hadoop]# jps 23396 JournalNode 25154 ResourceManager 25247 NodeManager 24232 DataNode 23558 NameNode 22491 QuorumPeerMain 25281 Jps [root@hadoop101 hadoop]# 【产生java进程ResourceManager和NodeManager】 也可以通过浏览器访问，如下图  15.启动ZooKeeperFailoverController 在hadoop101、hadoop102、hadoop103、hadoop104上分别执行命令：/usr/local/hadoop/sbin/hadoop-daemon.sh start zkfc 命令输出（以hadoop101为例）： [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]# 验证（以hadoop101为例）： [root@hadoop101 hadoop]# jps 24599 DFSZKFailoverController 23396 JournalNode 24232 DataNode 23558 NameNode 22491 QuorumPeerMain 24654 Jps [root@hadoop101 hadoop]# 【产生java进程DFSZKFailoverController】 16.验证HDFS是否好用 在任意一个节点上执行以下命令（这里以hadoop101为例），把数据上传到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 / 【上传到集群中，默认是上传到HDFS联盟的c1集群中】 验证： [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]# 也可以通过浏览器查看，数据默认是放在第一个集群中的  --------------------------------------------------------------------------------------------------------------------------------------------------- 17.验证Yarn是否好用 在hadoop101上执行以下命令 hadoop jar /usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.2.0.jar wordcount /core-site.xml /out 命令输出： [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]# 验证： [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 1 3 encoding="UTF-8"?> 1 href="configuration.xsl"?> 1 type="text/xsl" 1 version="1.0" 1 [root@hadoop101 hadoop]# 18.验证HA的故障自动转移是否好用观察cluster1的两个NameNode的状态，hadoop101的状态是standby，hadoop102的状态是active，如下图。   下面我们杀死hadoop102的NameNode进程，观察hadoop101的状态是否会自动切换成active。 在hadoop102执行以下命令 [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]# 再观察页面，发现如下图所示   证明HDFS的高可靠是可用的。 结语 以上是hadoop2.2.0的HDFS集群HA配置和自动切换、HDFS federation配置、Yarn配置的详细过程，大家可以根据以上步骤搭建。在搭建过程中，一定要注意命令的执行顺序和每一步的验证工作。 |