Hadoop單機Hadoop測試環境搭建： 1. 安裝jdk，並配置環境變量,配置ssh免密碼登錄 2. 下載安裝包hadoop-2.7.3.tar.gz 3. 配置/etc/hosts 127.0.0.1 YARN001 4. 解壓縮hadoop-2.7.3.tar.gtz到/home/zhangzhenghai/cluster目錄下 5. 配置etc/hadoop/hadoop-env.sh 配置JAVA_HOME環境變量 export JAVA_HOME=/home/zhangzhenghai/soft/jdk1.8.0_121 6. 配置四個配置文件 etc/hadoop/mapred-site.xml <?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <configuration> <property> <name>mapreduce.framework.name</name> <value>yarn</value> </property> </configuration> etc/hadoop/core-site.xml <?xml version="1.0" encoding="UTF-8"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <configuration> <property> <name>fs.default.name</name> <value>hdfs://YARN001:8020</value> </property> </configuration> etc/hadoop/hdfs-site.xml <?xml version="1.0" encoding="UTF-8"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <configuration> <property> <name>dfs.replication</name> <value>1</value> </property> <property> <name>dfs.namenode.name.dir</name> <value>/home/zhangzhenghai/cluster/hadoop-2.7.3/dfs/name</value> </property> <property> <name>dfs.datanode.data.dir</name> <value>/home/zhangzhenghai/cluster/hadoop-2.7.3/dfs/data</value> </property> </configuration> etc/hadoop/yarn-site.xml <?xml version="1.0"?> <configuration> <property> <name>yarn.nodemanager.aux-services</name> <value>mapreduce_shuffle</value> </property> </configuration> 7. etc/hadoop/slaves配置文件 $more etc/hadoop/slaves YARN001 8. 格式化NameNode（僅在搭建的時候格式化；若常規啟動集群需要跳過此步驟） bin/hadoop namenode -format 9. 啟動方法三種，建議一個一個啟動 sbin/hadoop-daemon.sh start namenode sbin/hadoop-daemon.sh start datanode sbin/yarn-daemon.sh start resourcemanager sbin/yarn-daemon.sh start nodemanager 10. 檢查各進程是否啟動jps 28819 DataNode 29348 NodeManager 29065 ResourceManager 28269 NameNode 29487 Jps 11. web檢查NameNode是否啟動 http://localhost:50070 http://test:8088 12. 驗證機群，跑一個測試用例<br> bin/yarn jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.3.jar pi 2 10