1 | [hadoop@plinux09 bigdata]$ vim /bigdata/hadoop/etc/hadoop/core-site.xml |
1 2 3 4 | <property> <name>fs.defaultFS</name> <value>hdfs://mycluster</value> </property> |
1 2 3 4 | <property> <name>fs.default.name</name> <value>hdfs://mycluster</value> </property> |
1 2 3 4 5 | [hadoop@plinux09 bigdata]$ hadoop/sbin/hadoop-daemons.sh --hostnames 'plinux09 plinux10 plinux11' start jouralnode starting journalnode, logging to /bigdata/hadoop/logs/hadoop-hadoop-journalnode-plinux09.out starting journalnode, logging to /bigdata/hadoop/logs/hadoop-hadoop-journalnode-plinux10.out starting journalnode, logging to /bigdata/hadoop/logs/hadoop-hadoop-journalnode-plinux11.out |
1 2 3 4 5 6 7 | [hadoop@plinux09 ~]$ hadoop namenode –format *** 14/01/12 22:25:05 INFO util.ExitUtil: Exiting with status 0 14/01/12 22:25:05 INFO namenode.NameNode: SHUTDOWN_MSG: /************************************************************ SHUTDOWN_MSG: Shutting down NameNode at plinux09/9.110.75.104 ************************************************************/ |
1 2 | [hadoop@plinux09 bigdata]$ hadoop-daemon.sh start namenode starting namenode, logging to /bigdata/hadoop/logs/hadoop-hadoop-namenode-plinux09.out |
1 | [hadoop@plinux10 ~]$ hdfs namenode -bootstrapStandby |
1 2 | [hadoop@plinux10 ~]$ hadoop-daemon.sh start namenode starting namenode, logging to /bigdata/hadoop/logs/hadoop-hadoop-namenode-plinux10.out |
1 2 3 | [hadoop@plinux09 bigdata]$ hadoop-daemon.sh start datanode starting datanode, logging to /bigdata/hadoop/logs/hadoop-hadoop-datanode-plinux09.out *** |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | [hadoop@plinux09 bigdata]$ hdfs haadmin Usage: DFSHAAdmin [-ns <nameserviceId>] [-transitionToActive <serviceId>] [-transitionToStandby <serviceId>] [-failover [--forcefence] [--forceactive] <serviceId> <serviceId>] [-getServiceState <serviceId>] [-checkHealth <serviceId>] [-help <command>] Generic options supported are -conf <configuration file> specify an application configuration file -D <property=value> use value for given property -fs <local|namenode:port> specify a namenode -jt <local|jobtracker:port> specify a job tracker -files <comma separated list of files>specify comma separated files to be copied to the \ map reduce cluster -libjars <comma separated list of jars> specify comma separated jar files to include in the classpath. -archives <comma separated list of archives>specify comma separated archives to be unarchived on the compute machines. The general command line syntax is bin/hadoop command [genericOptions] [commandOptions] |
1 | [hadoop@plinux09 bigdata]$ hdfs haadmin -transitionToActive nn1 |
1 2 3 4 5 | [hadoop@plinux09 conf]$ hdfs haadmin -getServiceState nn1 Active [hadoop@plinux09 conf]$ hdfs haadmin -getServiceState nn2 Standby |
1 2 3 4 5 6 7 8 | [hadoop@plinux09 bigdata]$ hdfs haadmin -failover nn1 nn2 Failover to NameNode at plinux10/9.110.75.105:8020 successful [hadoop@plinux09 bigdata]$ hdfs haadmin -getServiceState nn1 Standby [hadoop@plinux09 bigdata]$ hdfs haadmin -getServiceState nn2 active |
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