Hadoop【部署 02】hadoop-3.1.3 单机版YARN（配置、启动停止shell脚本修改及服务验证）

[root@tcloud ~]# vim /usr/local/hadoop-3.1.3/etc/hadoop/mapred-site.xml

<configuration>
  <property>
  <name>mapreduce.framework.name</name>
    <value>yarn</value>
  </property>
  <!-- 历史服务器地址 -->
  <property>
  <name>mapreduce.jobhistory.address</name>
  <value>tcloud:10020</value>
   </property>
   <property>
  <name>mapreduce.jobhistory.webapp.address</name>
  <value>tcloud:19888</value>
   </property>
</configuration>

[root@tcloud ~]# vim /usr/local/hadoop-3.1.3/etc/hadoop/yarn-site.xml

<configuration>
  <property>
    <!--配置NodeManager上运行的附属服务。需要配置成mapreduce_shuffle后才可以在Yarn上运行MapReduce程序-->
    <name>yarn.nodemanager.aux-services</name>
    <value>mapreduce_shuffle</value>
  </property>
  <!-- resourcemanager配置 单机版可以在同一台服务器上可以不配置 -->
  <property>
  <name>yarn.resourcemanager.hostname</name>
  <value>tcloud</value>
  </property>
  <!-- 白名单 -->
  <property>
  <name>yarn.nodemanager.env-whitelist</name> 
  <value>JAVA_HOME,HADOOP_COMMON_HOME,HADOOP_HDFS_HOME,HADOOP_CONF_DIR,CLASSPATH_PREPEND_DISTCACHE,HADOOP_YARN_HOME,HADOOP_MAPRED_HOME</value>
  </property>
  <!-- 以下配置要根据服务器情况进行配置 我的云服务器只有2G的内存-->
  <property>
  <name>yarn.scheduler.minimum-allocation-mb</name>
  <value>128</value>
  </property>
  <property>
  <name>yarn.scheduler.maximum-allocation-mb</name>
  <value>256</value>
  </property>
  <property>
  <name>yarn.nodemanager.resource.memory-mb</name>
  <value>256</value>
  </property>
  <property>
  <name>yarn.nodemanager.pmem-check-enabled</name>
  <value>false</value>
  </property>
  <property>
  <name>yarn.nodemanager.vmem-check-enabled</name>
  <value>false</value>
  </property>
  <!-- 开启日志聚集功能 -->
  <property>
    <name>yarn.log-aggregation-enable</name>
    <value>true</value>
  </property>
  <!-- 设置日志聚集服务器地址 -->
  <property>  
    <name>yarn.log.server.url</name>  
    <value>http://tcloud:19888/jobhistory/logs</value>
  </property>
  <!-- 设置日志保留时间为7天 -->
  <property>
    <name>yarn.log-aggregation.retain-seconds</name>
    <value>604800</value>
  </property>
</configuration>

[root@tcloud hadoop]# vim /usr/local/hadoop-3.1.3/sbin/start-yarn.sh
[root@tcloud hadoop]# vim /usr/local/hadoop-3.1.3/sbin/stop-yarn.sh

YARN_RESOURCEMANAGER_USER=root
HDFS_DATANODE_SECURE_USER=yarn
YARN_NODEMANAGER_USER=root

[root@tcloud sbin]# ./start-yarn.sh

[root@tcloud sbin]# jps
1701 NameNode
1848 DataNode
7512 Jps
7198 NodeManager
7055 ResourceManager
2095 SecondaryNameNode