关于hadoop分布式启动问题

关于hadoop分布式启动问题

本人共虚拟出三个节点即 master slave1 slave2 配置好后发现只有master可以启动那几个常规的进程，而slaves上面的datanode，nodemanager启动后马上就自动关闭了 最终通过修改配置文件解决问题，本人感觉,出现这种情况多为那四个配置有误，最终通过从已经配好的其他机群里，copy配置文件解决问题。配置文件如下。

hadoop安装方法参考

单机模式/伪分布 ：http://dblab.xmu.edu.cn/blog/install-hadoop/

伪分布模式升级分布式  ：https://www.aliyun.com/jiaocheng/132918.html

本人为按照上面两个安装，照着来就可以的，操作简单，重复的地方略过即可

伪分布模式2：http://dblab.xmu.edu.cn/blog/install-hadoop-cluster/

这四个配置均位于

：.../hadoop/etc/hadoop/下  (第一个hadoop为安装的hadoop所在目录)

                                     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://Master:9000</value>

</property>

<property>

<name>hadoop.tmp.dir</name>

<value>file:/usr/local/hadoop/tmp</value>

<description>Abase for other temporary directories.</description>

</property>

</configuration>

                                              hdfs-site.xml如下

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

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

<configuration>

<property>

<name>dfs.namenode.secondary.http-address</name>

<value>Master:50090</value>

</property>

<property>

<name>dfs.replication</name>

                <value>1</value>

        </property>

<property>

<name>dfs.namenode.name.dir</name>

                <value>file:/usr/local/hadoop/tmp/dfs/name</value>

        </property>

<property>

<name>dfs.datanode.data.dir</name>

                <value>file:/usr/local/hadoop/tmp/dfs/data</value>

        </property>

<property>

<name>dfs.permissions</name>

<value>false</value>

</property>

</configuration>

                                  yarn-site.xml如下

<?xml version="1.0"?>

<configuration>

<property>

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

<value>master</value>

</property>

<property>

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

                <value>mapreduce_shuffle</value>

        </property>

<!-- Site specific YARN configuration properties -->

</configuration>

                                          mapred-site.xml如下

<?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>

</property>

<property>

                <name>mapreduce.jobhistory.address</name>

                <value>master:10020</value>

        </property>

<property>

                <name>mapreduce.jobhistory.webapp.address</name>

                <value>master:19888</value>

        </property>

</configuration>