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