hadoop2.0 HA的主备自动切换
dfs.replication
1
dfs.namenode.name.dir
/home/dfs/name
dfs.datanode.data.dir
/home/dfs/data
dfs.permissions
false
dfs.nameservices
mycluster
dfs.ha.namenodes.mycluster
nn1,nn2
dfs.namenode.rpc-address.mycluster.nn1
namenode1:8020
dfs.namenode.rpc-address.mycluster.nn2
namenode2:8020
dfs.namenode.http-address.mycluster.nn1
namenode1:50070
dfs.namenode.http-address.mycluster.nn2
namenode2:50070
dfs.namenode.shared.edits.dir
qjournal://journalnode1:8485;journalnode2:8485;journalnode3:8485/mycluster
dfs.journalnode.edits.dir
/home/dfs/journal
dfs.client.failover.proxy.provider.mycluster
org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider
dfs.ha.fencing.methods
shell(/bin/true)
dfs.ha.automatic-failover.enabled
true
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