HDFS HA系列实验之四:HA+Federation
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B:修改HDFS HA系列实验之二:HA+JournalNode+zookeeper 中的配置文件slaves文件如下,并发放给所有节点。<configuration><property><name>dfs.nameservices</name><value>cluster1,cluster2</value></property><!-- hadoop cluster1 --><property><name>dfs.ha.namenodes.cluster1</name><value>nn1,nn2</value></property><property><name>dfs.namenode.rpc-address.cluster1.nn1</name><value>product201:8020</value></property><property><name>dfs.namenode.rpc-address.cluster1.nn2</name><value>product202:8020</value></property><property><name>dfs.namenode.http-address.cluster1.nn1</name><value>product201:50070</value></property><property><name>dfs.namenode.http-address.cluster1.nn2</name><value>product202:50070</value></property><!-- hadoop cluster2 --><property><name>dfs.ha.namenodes.cluster2</name><value>nn1,nn2</value></property><property><name>dfs.namenode.rpc-address.cluster2.nn1</name><value>product211:8020</value></property><property><name>dfs.namenode.rpc-address.cluster2.nn2</name><value>product212:8020</value></property><property><name>dfs.namenode.http-address.cluster2.nn1</name><value>product211:50070</value></property><property><name>dfs.namenode.http-address.cluster2.nn2</name><value>product212:50070</value></property><property><name>dfs.namenode.name.dir</name><value>file:///app/hadoop/hadoop220/mydata/name</value></property><property><name>dfs.namenode.shared.edits.dir</name><value>qjournal://product212:8485;product213:8485;product214:8485/cluster1</value></property><property><name>dfs.datanode.data.dir</name><value>file:///app/hadoop/hadoop220/mydata/data</value></property><property> <name>dfs.ha.automatic-failover.enabled</name> <value>true</value></property><property> <name>ha.zookeeper.quorum</name> <value>product202:2181,product203:2181,product204:2181</value></property><property> <name>dfs.ha.fencing.methods</name> <value>sshfence</value></property><property> <name>dfs.ha.fencing.ssh.private-key-files</name> <value>/home/hadoop/.ssh/id_rsa</value></property><property><name>dfs.journalnode.edits.dir</name><value>/app/hadoop/hadoop220/mydata/journal/</value></property></configuration>
product203product204product213product214
<property><name>dfs.namenode.shared.edits.dir</name><value>qjournal://product212:8485;product213:8485;product214:8485/cluster2</value></property>
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