[jira] [Assigned] (HDFS-2918) HA: Update HA docs to cover dfsadmin

["Eli Collins (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-2918?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eli Collins reassigned HDFS-2918:
---------------------------------

    Assignee:     (was: Eli Collins)
    
> HA: Update HA docs to cover dfsadmin
> ------------------------------------
>
>                 Key: HDFS-2918
>                 URL: https://issues.apache.org/jira/browse/HDFS-2918
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: ha
>    Affects Versions: 0.24.0
>            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.
> {noformat}
> 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
> {noformat}

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