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From "Eli Collins (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-2918) HA: dfsadmin should failover like other clients
Date Wed, 08 Feb 2012 23:15:02 GMT
HA: dfsadmin should failover like other clients

                 Key: HDFS-2918
                 URL: https://issues.apache.org/jira/browse/HDFS-2918
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: ha
    Affects Versions: HA branch (HDFS-1623)
            Reporter: Eli Collins

dfsadmin currently always uses the first namenode rather than failing over. It should failover
like other clients, unless fs specifies a specific namenode.

hadoop-0.24.0-SNAPSHOT $ ./bin/hdfs haadmin -failover nn1 nn2
Failover from nn1 to nn2 successful
# nn2 is 8022
hadoop-0.24.0-SNAPSHOT $ ./bin/hdfs dfsadmin -fs localhost:8022 -safemode enter
Safe mode is ON
hadoop-0.24.0-SNAPSHOT $ ./bin/hdfs dfsadmin -safemode get 
Safe mode is OFF
hadoop-0.24.0-SNAPSHOT $ ./bin/hdfs dfsadmin -fs localhost:8022 -safemode get
Safe mode is ON

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