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https://issues.apache.org/jira/browse/HDFS-1974?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Suresh Srinivas updated HDFS-1974:
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Description: Currently namenode supports active, secondary and backup
roles. To support namenode high availability, active and standby states are
needed. Note that this is different from the existing notion of namenode role,
where a namenode cannot transition from one role to the other.
Environment: (was: Currently namenode supports active, secondary and
backup roles. To support namenode high availability, active and standby states
are needed. Note that this is different from the existing notion of namenode
role, where a namenode cannot transition from one role to the other.
)
> HA: Introduce active and standby states to the namenode
> -------------------------------------------------------
>
> Key: HDFS-1974
> URL: https://issues.apache.org/jira/browse/HDFS-1974
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: name-node
> Reporter: Suresh Srinivas
> Assignee: Suresh Srinivas
>
> Currently namenode supports active, secondary and backup roles. To support
> namenode high availability, active and standby states are needed. Note that
> this is different from the existing notion of namenode role, where a namenode
> cannot transition from one role to the other.
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