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Posted to hdfs-issues@hadoop.apache.org by "Aaron T. Myers (Updated) (JIRA)" <ji...@apache.org> on 2012/01/24 20:48:43 UTC
[jira] [Updated] (HDFS-1974) HA: Introduce active and standby
states to the namenode
[ https://issues.apache.org/jira/browse/HDFS-1974?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aaron T. Myers updated HDFS-1974:
---------------------------------
Component/s: ha
> 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: ha, name-node
> Reporter: Suresh Srinivas
> Assignee: Suresh Srinivas
> Attachments: HDFS-1974.1.patch, HDFS-1974.2.patch, HDFS-1974.3.patch, HDFS-1974.4.patch, HDFS-1974.5.patch, HDFS-1974.6.patch, HDFS-1974.patch
>
>
> 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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