dfs.replication 3 dfs.name.dir /data/dfs/nn dfs.data.dir /data/dfs/dn dfs.nameservices Ucluster dfs.ha.namenodes.Ucluster nn1,nn2 dfs.namenode.rpc-address.Ucluster.nn1 uhadoop-ia1nlbku-master1:8020 dfs.namenode.rpc-address.Ucluster.nn2 uhadoop-ia1nlbku-master2:8020 dfs.namenode.http-address.Ucluster.nn1 uhadoop-ia1nlbku-master1:50070 dfs.namenode.http-address.Ucluster.nn2 uhadoop-ia1nlbku-master2:50070 dfs.namenode.shared.edits.dir qjournal://uhadoop-ia1nlbku-master1:8485;uhadoop-ia1nlbku-master2:8485;uhadoop-ia1nlbku-core1:8485/Ucluster dfs.journalnode.edits.dir /data/dfs/jn dfs.client.failover.proxy.provider.Ucluster org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider dfs.ha.fencing.methods sshfence(hadoop:22) dfs.ha.fencing.ssh.connect-timeout 30000 SSH connection timeout, in milliseconds, to use with the builtin shfence fencer. dfs.ha.fencing.ssh.private-key-files /home/hadoop/conf/id_rsa dfs.ha.automatic-failover.enabled true dfs.datanode.max.xcievers 4096 dfs.webhdfs.enabled true dfs.namenode.heartbeat.recheck-interval 45000 fs.trash.interval 7320 dfs.datanode.max.transfer.threads 8192 dfs.image.compress true dfs.namenode.num.checkpoints.retained 12 dfs.datanode.handler.count 20 dfs.namenode.handler.count 20 dfs.socket.timeout 900000 dfs.hosts.exclude /home/hadoop/conf/excludes dfs.client.read.shortcircuit true dfs.domain.socket.path /var/lib/hadoop-hdfs/dn_socket