Hadoop2.0 配置yarn成功

Hadoop2.0 配置yarn成功，记住这个成功的一刻，把几个主要文件贴出来：

--------------------------------------分割线 -------------------------------------- core-site.xml: <?xml version="1.0"?>  <?xml-stylesheet type="text/xsl" href="https://www.linuxidc.com/Linux/2014-05/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="https://www.linuxidc.com/Linux/2014-05/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="https://www.linuxidc.com/Linux/2014-05/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!