hadoop2.6配置文件

hdfs-site.xml

<property>

  <name>dfs.nameservices</name>

  <value>mycluster</value>

</property>

<property>

  <name>dfs.ha.namenodes.mycluster</name>

  <value>nn1,nn2</value>

</property>

<property>

  <name>dfs.namenode.rpc-address.mycluster.nn1</name>

  <value>machine1.example.com:8020</value>

</property>

<property>

  <name>dfs.namenode.rpc-address.mycluster.nn2</name>

  <value>machine2.example.com:8020</value>

</property>

<property>

  <name>dfs.namenode.http-address.mycluster.nn1</name>

  <value>machine1.example.com:50070</value>

</property>

<property>

  <name>dfs.namenode.http-address.mycluster.nn2</name>

  <value>machine2.example.com:50070</value>

</property>

<property>

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

  <value>qjournal://node1.example.com:8485;node2.example.com:8485;node3.example.com:8485/mycluster</value>

</property>

<property>

  <name>dfs.client.failover.proxy.provider.mycluster</name>

  <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value>

</property>

<property>

  <name>dfs.ha.fencing.methods</name>

  <value>sshfence</value>

</property>

//私钥地址

<property>

  <name>dfs.ha.fencing.ssh.private-key-files</name>

  <value>/home/exampleuser/.ssh/id_rsa</value>

</property>

<property>

  <name>dfs.journalnode.edits.dir</name>

  <value>/path/to/journal/node/local/data</value>

</property>

自动切换

<property>

   <name>dfs.ha.automatic-failover.enabled</name>

   <value>true</value>

</property>

core-site.xml

<property>

  <name>fs.defaultFS</name>

  <value>hdfs://mycluster</value>

</property>

//在core-site中加入zookeeper集群

<property>

   <name>ha.zookeeper.quorum</name>

   <value>zk1.example.com:2181,zk2.example.com:2181,zk3.example.com:2181</value>

</property>

配置 hadoop.tmp.dir

yarn-site.xml

  <property>   

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

    <value>master</value>

  </property> 

  <property>

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

    <value>org.apache.hadoop.mapred.ShuffleHandler</value>

  </property>

 <property>    

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

    <value>mapreduce_shuffle</value>

  </property>

zookeeper配置

tickTime=2000

dataDir=/var/lib/zookeeper

clientPort=2181

initLimit=5

syncLimit=2

server.1=zoo1:2888:3888

server.2=zoo2:2888:3888

server.3=zoo3:2888:3888