<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
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  Licensed under the Apache License, Version 2.0 (the "License");
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  distributed under the License is distributed on an "AS IS" BASIS,
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<!-- Put site-specific property overrides in this file. -->

<configuration>
	<!--指定hdfs的nameservice为ns1，需要和core-site.xml中的保持一致 -->
	<property>
	    <name>dfs.nameservices</name>
	    <value>ns1</value>
	</property>
	<!-- ns1下面有两个NameNode，分别是nn1，nn2 -->
	<property>
	    <name>dfs.ha.namenodes.ns1</name>
	    <value>nn1,nn2</value>
	</property>
	<!-- nn1的RPC通信地址 -->
	<property>
	    <name>dfs.namenode.rpc-address.ns1.nn1</name>
	    <value>uplooking01:9000</value>
	</property>
	<!-- nn1的http通信地址 -->
	<property>
	    <name>dfs.namenode.http-address.ns1.nn1</name>
	    <value>uplooking01:50070</value>
	</property>
	<!-- nn2的RPC通信地址 -->
	<property>
	    <name>dfs.namenode.rpc-address.ns1.nn2</name>
	    <value>uplooking02:9000</value>
	</property>
	<!-- nn2的http通信地址 -->
	<property>
	    <name>dfs.namenode.http-address.ns1.nn2</name>
	    <value>uplooking02:50070</value>
	</property>
	<!-- 指定NameNode的元数据在JournalNode上的存放位置 -->
	<property>
	    <name>dfs.namenode.shared.edits.dir</name>
	    <value>qjournal://uplooking01:8485;uplooking02:8485;uplooking03:8485/ns1</value>
	</property>
	<!-- 指定JournalNode在本地磁盘存放数据的位置 -->
	<property>
	    <name>dfs.journalnode.edits.dir</name>
	    <value>/home/uplooking/data/hadoop/journal</value>
	</property>
	<property>  
	    <name>dfs.namenode.name.dir</name>  
	    <value>/home/uplooking/data/hadoop/name</value>  
	</property>  
	<property>  
	    <name>dfs.datanode.data.dir</name>  
	    <value>/home/uplooking/data/hadoop/data</value>  
	</property> 
	<!-- 开启NameNode失败自动切换 -->
	<property>
	    <name>dfs.ha.automatic-failover.enabled</name>
	    <value>true</value>
	</property>
	<!-- 配置失败自动切换实现方式 -->
	<property>
	    <name>dfs.client.failover.proxy.provider.ns1</name>
	    <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value>
	</property>
</configuration>
