前言

此篇文章内容是HadoopHA的相关配置文件
安装流程请参见
安装windows+linux双系统:https://blog.csdn.net/IAmListening/article/details/89741854
搭建时间同步服务器和yum源:https://blog.csdn.net/IAmListening/article/details/89765148
搭建hadoop高可用:https://blog.csdn.net/IAmListening/article/details/89765843
Hive的安装和相关异常:https://blog.csdn.net/IAmListening/article/details/89368823
安装hbase:https://blog.csdn.net/IAmListening/article/details/89765957

vi hadoop-env.sh

# 指定JAVA-HOME
export JAVA_HOME=/apps/jdk1.8.0_60

vi core-site.xml

<configuration>
<property>
  <!-- 集群名称 -->
  <name>fs.defaultFS</name>
  <value>hdfs://bg19</value>
</property>

<property>
  <!-- zk地址 -->
   <name>ha.zookeeper.quorum</name>
   <value>slave1:2181,slave2:2181,slave3:2181</value>
</property>

<property>
  <!-- 临时文件目录 -->
  <name>hadoop.tmp.dir</name>
  <value>/software/hadoopdata/tmp</value>
</property>

<property>
  <!-- 是否开启文件权限验证 -->
  <name>dfs.permissions.enabled</name>
  <value>false</value>
</property>

<property>
  <!-- 回收站的自动清理周期 -->
  <name>fs.trash.interval</name>
  <value>36000000</value>
</property>

<property>
  <!-- checkpoint的时间间隔 -->
  <name>fs.trash.checkpoint.interval</name>
  <value>3600</value>
</property>

vi hdfs-site.xml

<configuration>

<property>
<!-- 高可用集群的名字 -->
<name>dfs.nameservices</name>
<value>bg19</value>
</property>

<property>
<!-- 集群namenode的名字 -->
<name>dfs.ha.namenodes.bg19</name>
<value>nn1,nn2</value>
</property>

<!-- 配置第一个namenode(ip,端口和html页面) -->
<property>
<name>dfs.namenode.rpc-address.bg19.nn1</name>
<value>master1:9000</value>
</property>
<property>
<name>dfs.namenode.http-address.bg19.nn1</name>
<value>master1:50070</value>
</property>

<!-- 配置第二个 -->
<property>
<name>dfs.namenode.rpc-address.bg19.nn2</name>
<value>master2:9000</value>
</property>
<property>
<name>dfs.namenode.http-address.bg19.nn2</name>
<value>master2:50070</value>
</property>

<!-- 相关文件的存放目录 -->
<property>
<name>dfs.datanode.data.dir</name>
<value>/software/hadoop/data</value>
</property>
<property>
<name>dfs.namenode.name.dir</name>
<value>/software/hadoop/name</value>
</property>
<property>

<!-- 指定qjournal集群(用于备份日志) -->
<name>dfs.namenode.shared.edits.dir</name>
<value>qjournal://slave1:8485;slave2:8485;slave3:8485/bg19</value>
</property>
<property>
<!-- 日志备份的存放目录 -->
<name>dfs.journalnode.edits.dir</name>
<value>/software/hadoop/journaldata</value>
</property>

<!-- 配置主从namenode的切换逻辑 -->
<property>
<!-- 是否开启自动切换 -->
<name>dfs.ha.automatic-failover.enabled</name>
<value>true</value>
</property>
<property>
<!-- 主备切换需要用到的java类 -->
<name>dfs.client.failover.proxy.provider.bg19</name>
<value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value>
</property>
<property>
<!-- 主备切换方法 -->
<name>dfs.ha.fencing.methods</name>
<value>
sshfence
shell(/bin/true)
</value>
</property>
<property>
<!-- 主备切换时,需要ssh免密登录,所以需要指定免密文件的存放地 -->
<name>dfs.ha.fencing.ssh.private-key-files</name>
<value>/root/.ssh/id_rsa</value>
</property>
<property>
<!-- ssh连接的超时时间 -->
<name>dfs.ha.fencing.ssh.connect-timeout</name>
<value>30000</value>
</property>

</configuration>

vi mapred-site.xml

<configuration>

<property>
<!-- 设置MR在yarn上运行 -->
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>

</configuration>

vi yarn-site.xml

<configuration>

<property>
<!-- 在yarn上运行MR -->
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>

<property>
<!-- 是否开启高可用 -->
<name>yarn.resourcemanager.ha.enabled</name>
<value>true</value>
</property>

<property>
<!-- 设置RM集群的id,以避免多个集群相互影响 -->
<name>yarn.resourcemanager.cluster-id</name>
<value>bg_hyarn</value>
</property>

<!-- 配置双RM(和hdfs-site.xml配置双NN类似) -->
<property>
<name>yarn.resourcemanager.ha-id</name>
<value>rm</value>
</property>
<property>
<name>yarn.resourcemanager.ha.rm-ids</name>
<value>rm1,rm2</value>
</property>
<property>
<name>yarn.resourcemanager.hostname.rm1</name>
<!-- 计划将master2设置为主RM -->
<value>master2</value>
</property>
<property>
<name>yarn.resourcemanager.hostname.rm2</name>
<value>master1</value>
</property>

<property>
<name>yarn.resourcemanager.webapp.address.rm1</name>
<value>master2:8088</value>
</property>
<property>
<name>yarn.resourcemanager.webapp.address.rm1</name>
<value>master2:8090</value>
</property>
<property>
<name>yarn.resourcemanager.webapp.address.rm2</name>
<value>master1:8088</value>
</property>
<property>
<name>yarn.resourcemanager.webapp.address.rm2</name>
<value>master1:8090</value>
</property>

<property>
<!-- 设置zk地址 -->
<name>yarn.resourcemanager.zk-address</name>
<value>slave1:2181,slave2:2181,slave3:2181</value>
</property>

</configuration>

vi salves

slaver1
slaver2
slaver3