很久不写 BO-KE 了,来一篇吧,记住这个成功的一刻,把几个主要文件贴出来:
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.defaultFS</name>
<value>hdfs://fc20:9000</value>
</property>
<property>
<name>hadoop.tmp.dir</name>
<value>/home/ljq/hadoop/tmp</value>
</property>
<property>
<name>hadoop.native.lib</name>
<value>false</value>
<description>Should native hadoop libraries, if present, be used.</description>
</property>
</configuration>
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>
</property>
<property>
<name>dfs.namenode.name.dir</name>
<value>/home/ljq/hadoop/dfs/name</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>/home/ljq/hadoop/dfs/data</value>
</property>
</configuration>
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>mapreduce.framework.name</name>
<value>yarn</value> 一定是小写yarn否则出现错误:java.lang.IllegalStateException: Invalid shuffle port number -1
</property>
</configuration>
yarn-site.xml: 文件里所有yarn都必须小写,否则相应的端口信息找不到,会在默认端口上启动进程
<?xml version="1.0"?>
<configuration>
<!-- Site specific YARN configuration properties -->
<property>
<description>The hostname of the RM.</description>
<name>yarn.resourcemanager.hostname</name>
<value>fc20</value>
</property>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce.shuffle</value>
</property>
<property>
<description>The address of the applications manager interface in the RM.</description>
<name>yarn.resourcemanager.address</name>
<value>fc20:18004</value>
</property>
<property>
<description>The address of the scheduler interface.</description>
<name>yarn.resourcemanager.scheduler.address</name>
<value>fc20:18003</value>
</property>
<property>
<description>The address of the RM web application.</description>
<name>yarn.resourcemanager.webapp.address</name>
<value>fc20:18008</value>
</property>
<property>
<description>The address of the resource tracker interface.</description>
<name>yarn.resourcemanager.resource-tracker.address</name>
<value>fc20:18006</value>
</property>
</configuration>
通过netstat可以看见相应端口已经启动
运行wordcount以及自己写的mapreduce可以成功完成!
hadoop2.0 配置yarn成功