hdfs-site.xml 详解

	
	
		dfs.permissions.superusergroup
		hadoop
	

	
	
		dfs.webhdfs.enabled
		true
	
	
		dfs.namenode.name.dir
		/home/hadoop/data/dfs/name
		 namenode 存放name table(fsimage)本地目录（需要修改）
	
	
		dfs.namenode.edits.dir
		${dfs.namenode.name.dir}
		namenode粗放 transaction file(edits)本地目录（需要修改）
	
	
		dfs.datanode.data.dir
		/home/hadoop/data/dfs/data
		datanode存放block本地目录（需要修改）
	
	
		dfs.replication
		3
	
	
	
		dfs.blocksize
		134217728
	
	
	
	
	
		dfs.nameservices
		ruozeclusterg7
	
	
		
		dfs.ha.namenodes.ruozeclusterg7
		nn1,nn2
	

	
	
		dfs.namenode.rpc-address.ruozeclusterg7.nn1
		ruozedata001:8020
	
	
		dfs.namenode.rpc-address.ruozeclusterg7.nn2
		ruozedata002:8020
	

	
	
		dfs.namenode.http-address.ruozeclusterg7.nn1
		ruozedata001:50070
	
	
		dfs.namenode.http-address.ruozeclusterg7.nn2
		ruozedata002:50070
	

	
	
	
		dfs.journalnode.http-address
		0.0.0.0:8480
	
	
		dfs.journalnode.rpc-address
		0.0.0.0:8485
	
	
		
		
		dfs.namenode.shared.edits.dir
		qjournal://ruozedata001:8485;ruozedata002:8485;ruozedata003:8485/ruozeclusterg7
	

	
		
		dfs.journalnode.edits.dir
		/home/hadoop/data/dfs/jn
	
	
	
		
                             
		dfs.client.failover.proxy.provider.ruozeclusterg7
		org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider
	
	
	
	
		dfs.ha.fencing.methods
		sshfence
	
	
		dfs.ha.fencing.ssh.private-key-files
		/home/hadoop/.ssh/id_rsa
	
	
		
		dfs.ha.fencing.ssh.connect-timeout
		30000
	

	
	
	
		dfs.ha.automatic-failover.enabled
		true
	
	
	 
	   dfs.hosts
	   /home/hadoop/app/hadoop/etc/hadoop/slaves