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hadoop+zookeeper+hbase配置30

在 datanode 怎么会报这个错误？？regionserver.HRegionServer: Attempting connect to Master server at localhost.localdomain:60000

在master不断的出现INFO master.ServerManager: Waiting on regionserver(s) to checkin


配置是按照http://yiihsia.iteye.com/blog/1039426
来的，好郁闷，谢谢

版本hadoop-0.20.2 hbase-0.90.4 zookeeper-3.3.3
问题补充：乱答一通.....
编程综合 
2011年10月10日 21:36

4个答案 按时间排序 按投票排序

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晕，好新没好肺，

2011年10月10日 21:56
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对了ip一定是固定ip

2011年10月10日 21:48
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环境准备

 1.在windows下安装VMware
 
 2.创建了3个fedora14 linux。地址分别为：
  m201 192.168.0.201 (Namenode)
  s202 192.168.0.202 (Datanode)
  s203 192.168.0.203 (Datanode)
 
 3.在linux系统中下载所需要的软件。分别为：
  jdk-6u23-linux-i586-rpm.bin
  hadoop-0.20.2.tar.gz
  zookeeper-3.3.3.tar.gz
  hbase-0.90.2.tar.gz
 将下载的软件保存到/root/install目录下。

 

安装jdk(s202,s203进行同样的操作)

 1.执行jdk-6u23-linux-i586-rpm.bin就行可以。jdk将安装在/usr/java/jdk1.6.0_23目录下。
 
 2.设置java环境变量，修改/etc/profile文件。在文件最后增加：
  export JAVA_HOME=/usr/java/jdk1.6.0_23/
  export JRE_HOME=/usr/java/jdk1.6.0_23/jre/
  export CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH
  export PATH=$JAVA_HOME/bin:$PATH
 3.使/etc/profile文件生效，执行这个文件。

 

设置ssh(使m201,可以不用密码访问s202和s203)
 
 官网上的一段话：

 Now check that you can ssh to the localhost without a passphrase:
 $ ssh localhost

 If you cannot ssh to localhost without a passphrase, execute the following commands:
 $ ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa
 $ cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys

 将m201上的id_dsa.pub 文件追加到s202和s203的authorized_keys文件内

安装hadoop
 
 1.到/root/install目录解压hadoop-0.20.2.tar.gz，执行命令：tar -zxvf hadoop-0.20.2.tar.gz。运行结束后将生成hadoop-0.20.2目录

 2。进入/root/install/hadoop-0.20.2/conf目录

 3.修改文件masters(定义masters IP)
  192.168.0.201
 
 4.修改文件slaves(定义slaves IP)
  192.168.0.202
  192.168.0.203
  
 5.修改文件hadoop-env.sh(设置jdk路径)
  export JAVA_HOME=/usr/java/jdk1.6.0_23
  
 6.修改文件core-site.xml在<configuration>中加入
  <property>
    <name>hadoop.tmp.dir</name>
    <value>/hadoopdata</value>
    <description>A base for other temporary directories.</description>
  </property>

  <property>
    <name>fs.default.name</name>
    <value>hdfs://m201:9000</value>
    <description>The name of the default file system.  A URI whose
    scheme and authority determine the FileSystem implementation.  The
    uri's scheme determines the config property (fs.SCHEME.impl) naming
    the FileSystem implementation class.  The uri's authority is used to
    determine the host, port, etc. for a filesystem.</description>
  </property>
 
 7.修改文件hdfs-site.xml在<configuration>中加入
  <property>
   <name>dfs.replication</name>
   <value>1</value>
  </property>
 
 8.修改文件mapred-site.xml在<configuration>中加入
  <property>
    <name>mapred.job.tracker</name>
    <value>m201:9001</value>
    <description>The host and port that the MapReduce job tracker runs
    at.  If "local", then jobs are run in-process as a single map
    and reduce task.
    </description>
  </property>
 
 9.设置环境变量,修改文件/etc/profile
  export HADOOP_HOME=/root/install/hadoop-0.20.2
  export PATH=$HADOOP_HOME/bin:$PATH

 s202,s203,也执行一样的操作

 执行/etc/profile使其生效

 10.配/etc/hosts文件，加入
  192.168.0.201 m201
  192.168.0.202 s202
  192.168.0.203 s203
 s202,s203,也执行一样的操作
 
 11.将/root/install/hadoop-0.20.2目录复制到s202,s203上
  可使用scp -r 源 主机:目标

 11.格式化HDFS文件系统
   /root/install/hadoop-0.20.2/bin/hadoop namenode –format命令

 12. 执行/root/install/hadoop-0.20.2/bin/start-all.sh文件，启服务
  /root/install/hadoop-0.20.2/bin/stop-all.sh文件，停止服务
  
 hadoop安装完成
  可运行
  http://192.168.0.201:50070/dfshealth.jsp
  查看hadoop是否运行


安装zookeeper(在m201上执行)

 1.在/root/install/hadoop-0.20.2/中创建目录zookeeper
  cd /root/install/hadoop-0.20.2
  mkdir zookeeper
 
 2.在/root/install目录中解压zookeeper
  cd /root/install
  tar -zxvf zookeeper-3.3.3.tar.gz

 3.将zookeeper移动至/root/install/hadoop-0.20.2/zookeeper目录
  cd /root/install/zookeeper
  mv * /root/install/hadoop-0.20.2/zookeeper
 
 3配置zookeeper
  1).创建zoo.cfg文件
   cd /root/install/hadoop-0.20.2/zookeeper/conf
   cp zoo_sample.cfg zoo.cfg
  2).修改zoo.cfg文件，zoo.cfg文件的完整内容如下：
   # The number of milliseconds of each tick
   tickTime=2000
   # The number of ticks that the initial
   # synchronization phase can take
   initLimit=10
   # The number of ticks that can pass between
   # sending a request and getting an acknowledgement
   syncLimit=5
   # the directory where the snapshot is stored.

   dataDir=/root/install/hadoop-0.20.2/zookeeper/zookeeper-data #(新增加)

   dataLogDir=/root/install/hadoop-0.20.2/zookeeper/logs  #(新增加)

   # the port at which the clients will connect
   clientPort=2181

   server.1=m201:2888:3888      #(新增加)

   server.2=s202:2888:3888      #(新增加)

   server.3=s203:2888:3888      #(新增加)


   在文件中写入 #(新增加)的项目


   
  
  3).创建zookeeper-data目录
   cd /root/install/hadoop-0.20.2/zookeeper/
   mkdir zookeeper-data

  3).创建myid文件
   cd /root/install/hadoop-0.20.2/zookeeper/zookeeper-data
   vi myid
    myid文件中的内空写:1
   :x保存文件

 4.将/root/install/hadoop-0.20.2/zookeeper目录复制到s202,s203上
  可使用scp -r 源 主机:目标

 5.进入s202主机，写myid文件内容修改为:2

 6.进入s203主机，写myid文件内容修改为:3

 7.启动zookeeper(m201,s202,s203，执行同样的操作)
  /root/install/hadoop-0.20.2/zookeeper/bin/zkServer.sh start
  /root/install/hadoop-0.20.2/zookeeper/bin/zkServer.sh stop(为停止)

 

安装hbase(m201中操作)
 1.在/root/install/hadoop-0.20.2/中创建目录hbase
  cd /root/install/hadoop-0.20.2
  mkdir hbase
 
 2.在/root/install目录中解压hbase
  cd /root/install
  tar -zxvf hbase-0.90.2.tar.gz

 3.将hbase移动至/root/install/hadoop-0.20.2/hbase目录
  cd /root/install/hbase-0.90.2
  mv * /root/install/hadoop-0.20.2/hbase

 4.配置hbase
  1).配置/etc/profile文件，加入
   export HBASE_HOME=/root/install/hadoop-0.20.2/hbase
   export PATH=$PATH:$HBASE_HOME/bin

  s202,s203,也执行一样的操作

  执行/etc/profile使其生效

  2).修改hbase-site.xml文件
   cd /root/install/hadoop-0.20.2/hbase/conf
   vi hbase-site.xml

  在<configuration>中加入 :
   <property>

    <name>hbase.rootdir</name>

    <value>hdfs://m201:9000/hasexx</value>

    <description>The directory shared by region servers.</description>

   </property>


     <property>
       <name>hbase.master.port</name>
       <value>60000</value>
     </property>


   <property>

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

    <value>true</value>

    <description>The mode the cluster will be in. Possible values are

    false: standalone and pseudo-distributed setups with managed Zookeeper

    true: fully-distributed with unmanaged Zookeeper Quorum (see hbase-env.sh)

    </description>

   </property>

   <property>

       <name>dfs.replication</name>

       <value>1</value>

    </property>


   <property>
         <name>hbase.zookeeper.property.dataDir</name>
         <value>/root/install/hadoop-0.20.2/zookeeper</value>
         <description>Property from ZooKeeper's config zoo.cfg.
         The directory where the snapshot is stored.
         </description>
       </property>
    <property>
         <name>hbase.zookeeper.property.clientPort</name>
         <value>2181</value>
         <description>Property from ZooKeeper's config zoo.cfg.
         The port at which the clients will connect.
         </description>
       </property>

   <property>
         <name>hbase.zookeeper.quorum</name>
         <value>m201,s202,s203</value>
         <description>Comma separated list of servers in the ZooKeeper Quorum.
         For example, "host1.mydomain.com,host2.mydomain.com,host3.mydomain.com".
         By default this is set to localhost for local and pseudo-distributed modes
         of operation. For a fully-distributed setup, this should be set to a full
         list of ZooKeeper quorum servers. If HBASE_MANAGES_ZK is set in hbase-env.sh
         this is the list of servers which we will start/stop ZooKeeper on.
         </description>
    </property>

 

  3).修改hbase-env.sh文件,加入
   export JAVA_HOME=/usr/java/jdk1.6.0_23/
   export HBASE_CLASSPATH=/root/install/hadoop-0.20.2/conf
   export HBASE_MANAGES_ZK=false

  4).复制zookeeper的zoo.cfg文件到/root/install/hadoop-0.20.2/conf目录中
   cp /root/install/hadoop-0.20.2/zookeeper/conf/zoo.cfg /root/install/hadoop-0.20.2/conf/

  5).修改regionservers文件，完整内容为：
   192.168.0.202
   192.168.0.203

  6).将hadoop的hadoop-0.20.2-core.jar文复制到hbase的lib目录下，删除原来的hadoop-core-0.20-append-r1056497.jar文件

  7).将/root/install/hadoop-0.20.2/hbase目录复制到s202,s203上
   可使用scp -r 源主机:目标

 5.启动服务
  /root/install/hadoop-0.20.2/hbase/bin/start-hbase.sh
  /root/install/hadoop-0.20.2/hbase/bin/stop-hbase.sh停止



把之前的去掉，在来一边，要卸载干净............都则不会成功，刚才没看清题目，不好意思！！！！！！！！！和oracle一个样，要卸载干净，环境弄对！！！！！！！

2011年10月10日 21:47
0 0

少jar，连接不到数据库，

jdbc 的

package org.seven.utils;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class DB {
	public static String driver = "org.gjt.mm.mysql.Driver";
	//public static String url ="jdbc:mysql://localhost:3306/demo?useUnicode=true&characterEncoding=UTF-8";


	public static String url = "jdbc:mysql://localhost:3306/demo";
	public static String username = "root";
	public static String password = "wj";
	
	public static Connection getConnection(){
		Connection conn = null;
		try {
			Class.forName(driver);
			try {
				conn = DriverManager.getConnection(url,username,password);
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return conn;
	}
	public static void release(Connection conn,Statement stat,ResultSet rs){
		try{
			if(conn!=null){
				conn.close();
				conn = null;
			}
			if(stat!=null){
				stat.close();
				stat = null;
			}
			if(rs!=null){
				rs.close();
				rs = null;
			}
		}catch(Exception e){
			e.printStackTrace();
		}
	}
}




ssh的 


<?xml version="1.0" encoding="UTF-8"?>
<beans
	xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<!-- 连接池 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
	<property name="driverClassName">
		<value>com.mysql.jdbc.Driver</value>
	</property>
	<property name="url">
		<value>jdbc:mysql://localhost:3306/s2sh</value>
	</property>
	<property name="username">
		<value>root</value>
	</property>
	<property name="password">
		<value>wj</value>
	</property>
</bean>
<!-- sessionFactory -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
	<property name="dataSource">
		<ref local="dataSource"/>
	</property>
	
	<property name="mappingResources">
		<list>
			<value>com/s2sh/mobel/User.hbm.xml</value>
		</list>
	</property>
	<property name="hibernateProperties">
		<props>
			<prop key="hibernate.dialect">
				org.hibernate.dialect.MySQLDialect
			</prop>
			<prop key="hibernate.show_sql">
				true
			</prop>
		</props>
	</property>

2011年10月10日 21:44

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