Hadoop1.2.1集群安装三

配置hadoop

1:下载hadoop-1.2.1.tar.gz

在/home/jifeng 创建目录 mkdir hadoop

2:解压

[jifeng@jifeng01 hadoop]$ ls
hadoop-1.2.1.tar.gz
[jifeng@jifeng01 hadoop]$ tar zxf hadoop-1.2.1.tar.gz
[jifeng@jifeng01 hadoop]$ ls
hadoop-1.2.1  hadoop-1.2.1.tar.gz
[jifeng@jifeng01 hadoop]$

3: 修改hadoop-env.sh配置文件

[jifeng@jifeng01 hadoop]$ cd hadoop-1.2.1
[jifeng@jifeng01 hadoop-1.2.1]$ ls
bin          hadoop-ant-1.2.1.jar          ivy          sbin
build.xml    hadoop-client-1.2.1.jar       ivy.xml      share
c++          hadoop-core-1.2.1.jar         lib          src
CHANGES.txt  hadoop-examples-1.2.1.jar     libexec      webapps
conf         hadoop-minicluster-1.2.1.jar  LICENSE.txt
contrib      hadoop-test-1.2.1.jar         NOTICE.txt
docs         hadoop-tools-1.2.1.jar        README.txt
[jifeng@jifeng01 hadoop-1.2.1]$ cd conf
[jifeng@jifeng01 conf]$ ls
capacity-scheduler.xml      hadoop-policy.xml      slaves
configuration.xsl           hdfs-site.xml          ssl-client.xml.example
core-site.xml               log4j.properties       ssl-server.xml.example
fair-scheduler.xml          mapred-queue-acls.xml  taskcontroller.cfg
hadoop-env.sh               mapred-site.xml        task-log4j.properties
hadoop-metrics2.properties  masters
[jifeng@jifeng01 conf]$ vi hadoop-env.sh# Set Hadoop-specific environment variables here.# The only required environment variable is JAVA_HOME.  All others are
# optional.  When running a distributed configuration it is best to
# set JAVA_HOME in this file, so that it is correctly defined on
# remote nodes.# The java implementation to use.  Required.
export JAVA_HOME=/home/jifeng/jdk1.7.0_45# Extra Java CLASSPATH elements.  Optional.
# export HADOOP_CLASSPATH=# The maximum amount of heap to use, in MB. Default is 1000.
# export HADOOP_HEAPSIZE=2000# Extra Java runtime options.  Empty by default.
# export HADOOP_OPTS=-server# Command specific options appended to HADOOP_OPTS when specified
export HADOOP_NAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_NAMENODE_OPTS"
@
"hadoop-env.sh" 57L, 2436C 已写入
[jifeng@jifeng01 conf]$ cat hadoop-env.sh

把# export JAVA_HOME 修改为“export JAVA_HOME=/home/jifeng/jdk1.7.0_45”

4:修改core-site.xml文件

[jifeng@jifeng01 hadoop]$ mkdir tmp

[jifeng@jifeng01 conf]$ vi core-site.xml

修改后如下：

[jifeng@jifeng01 conf]$ cat core-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?><!-- Put site-specific property overrides in this file. --><configuration>
<property>
<name>fs.default.name</name>  <value>hdfs://jifeng01:9000</value>
</property><property>
<name>hadoop.tmp.dir</name>  <value>/home/jifeng/hadoop/tmp</value>
</property>
</configuration>

5：修改hdfs-site.xml

修改后如下：

[jifeng@jifeng01 conf]$ cat hdfs-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?><!-- Put site-specific property overrides in this file. --><configuration>
<property>  <name>dfs.replication</name>  <value>1</value>  <description></description>
</property>
</configuration>

6:修改mapred-site.xml文件

修改后如下：

[jifeng@jifeng01 conf]$ cat  mapred-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?><!-- Put site-specific property overrides in this file. --><configuration>
<property>  <name>mapred.job.tracker</name>  <value>jifeng01:9001</value>  <description>NameNode</description>
</property>
</configuration>
[jifeng@jifeng01 conf]$

7：修改masters和slaves文件

修改后路下

[jifeng@jifeng01 conf]$ cat masters
jifeng01
[jifeng@jifeng01 conf]$ cat slaves
jifeng02
jifeng03
[jifeng@jifeng01 conf]$

8：先其它2个节点复制hadoop-1.2.1

[jifeng@jifeng01 hadoop]$ scp -r ./hadoop-1.2.1 jifeng02:/home/jifeng/hadoop

[jifeng@jifeng01 hadoop]$ scp -r ./hadoop-1.2.1 jifeng03:/home/jifeng/hadoop

9：格式化分布式文件系统

[jifeng@jifeng01 hadoop-1.2.1]$ bin/hadoop namenode -format
14/07/24 10:29:43 INFO namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG:   host = jifeng01/10.3.7.214
STARTUP_MSG:   args = [-format]
STARTUP_MSG:   version = 1.2.1
STARTUP_MSG:   build = https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.2 -r 1503152; compiled by 'mattf' on Mon Jul 22 15:23:09 PDT 2013
STARTUP_MSG:   java = 1.7.0_45
************************************************************/
14/07/24 10:29:43 INFO util.GSet: Computing capacity for map BlocksMap
14/07/24 10:29:43 INFO util.GSet: VM type       = 64-bit
14/07/24 10:29:43 INFO util.GSet: 2.0% max memory = 932184064
14/07/24 10:29:43 INFO util.GSet: capacity      = 2^21 = 2097152 entries
14/07/24 10:29:43 INFO util.GSet: recommended=2097152, actual=2097152
14/07/24 10:29:43 INFO namenode.FSNamesystem: fsOwner=jifeng
14/07/24 10:29:43 INFO namenode.FSNamesystem: supergroup=supergroup
14/07/24 10:29:43 INFO namenode.FSNamesystem: isPermissionEnabled=true
14/07/24 10:29:43 INFO namenode.FSNamesystem: dfs.block.invalidate.limit=100
14/07/24 10:29:43 INFO namenode.FSNamesystem: isAccessTokenEnabled=false accessKeyUpdateInterval=0 min(s), accessTokenLifetime=0 min(s)
14/07/24 10:29:43 INFO namenode.FSEditLog: dfs.namenode.edits.toleration.length = 0
14/07/24 10:29:43 INFO namenode.NameNode: Caching file names occuring more than 10 times
14/07/24 10:29:43 INFO common.Storage: Image file /home/jifeng/hadoop/tmp/dfs/name/current/fsimage of size 112 bytes saved in 0 seconds.
14/07/24 10:29:44 INFO namenode.FSEditLog: closing edit log: position=4, editlog=/home/jifeng/hadoop/tmp/dfs/name/current/edits
14/07/24 10:29:44 INFO namenode.FSEditLog: close success: truncate to 4, editlog=/home/jifeng/hadoop/tmp/dfs/name/current/edits
14/07/24 10:29:44 INFO common.Storage: Storage directory /home/jifeng/hadoop/tmp/dfs/name has been successfully formatted.
14/07/24 10:29:44 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at jifeng01/10.3.7.214
************************************************************/
[jifeng@jifeng01 hadoop-1.2.1]$

10：启动hadoop

[jifeng@jifeng01 hadoop-1.2.1]$ bin/start-all.sh
starting namenode, logging to /home/jifeng/hadoop/hadoop-1.2.1/libexec/../logs/hadoop-jifeng-namenode-jifeng01.out
jifeng03: starting datanode, logging to /home/jifeng/hadoop/hadoop-1.2.1/libexec/../logs/hadoop-jifeng-datanode-jifeng03.out
jifeng02: starting datanode, logging to /home/jifeng/hadoop/hadoop-1.2.1/libexec/../logs/hadoop-jifeng-datanode-jifeng02.out
The authenticity of host 'jifeng01 (10.3.7.214)' can't be established.
RSA key fingerprint is a8:9d:34:63:fa:c2:47:4f:81:10:94:fa:4b:ba:08:55.
Are you sure you want to continue connecting (yes/no)? yes
jifeng01: Warning: Permanently added 'jifeng01,10.3.7.214' (RSA) to the list of known hosts.
jifeng@jifeng01's password:
jifeng@jifeng01's password: jifeng01: Permission denied, please try again.jifeng01: starting secondarynamenode, logging to /home/jifeng/hadoop/hadoop-1.2.1/libexec/../logs/hadoop-jifeng-secondarynamenode-jifeng01.out
starting jobtracker, logging to /home/jifeng/hadoop/hadoop-1.2.1/libexec/../logs/hadoop-jifeng-jobtracker-jifeng01.out
jifeng03: starting tasktracker, logging to /home/jifeng/hadoop/hadoop-1.2.1/libexec/../logs/hadoop-jifeng-tasktracker-jifeng03.out
jifeng02: starting tasktracker, logging to /home/jifeng/hadoop/hadoop-1.2.1/libexec/../logs/hadoop-jifeng-tasktracker-jifeng02.out
[jifeng@jifeng01 hadoop-1.2.1]$

需要输入密码

11：检测守护进程

[jifeng@jifeng01 hadoop-1.2.1]$ jps
4539 JobTracker
4454 SecondaryNameNode
4269 NameNode
4667 Jps
[jifeng@jifeng01 hadoop-1.2.1]$

[jifeng@jifeng02 hadoop]$ jps
2734 TaskTracker
2815 Jps
2647 DataNode
[jifeng@jifeng02 hadoop]$

[jifeng@jifeng03 hadoop]$ jps
4070 Jps
3878 DataNode
3993 TaskTracker
[jifeng@jifeng03 hadoop]$

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