完全分布模式的四大模块设置

配置完全分布式(${hadoop_home}/etc/hadoop/)  --->full

2018-12-21 09:41:47

[core-site.xml]

                   <?xml version="1.0" encoding="UTF-8"?>

                   <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

                   <configuration>

                                     <property>

                                                        <name>fs.defaultFS</name>

                                                        <value>hdfs://s250/</value>

                                     </property>

　　　　　</configuration>

---

此处添加主控端（namenode节点）的IP或者主机名

[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>3</value>

                                     </property>

                   </configuration>

---

此处添加有多少子客户端（datanode节点），写数量即可，不包含namenode节点

[mapred-site.xml]   不变

[yarn-site.xml]

                   <?xml version="1.0"?>

                   <configuration>

                                     <property>

                                                        <name>yarn.resourcemanager.hostname</name>

                                                        <value>s250</value>

                                     </property>

                                     <property>

                                                        <name>yarn.nodemanager.aux-services</name>

                                                        <value>mapreduce_shuffle</value>

                                     </property>

                   </configuration>

---

此处添加主控端主机名字（namenode节点的主机名）