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https://issues.apache.org/jira/browse/HDFS-1973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13091525#comment-13091525
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Eli Collins commented on HDFS-1973:
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@atm - mind filing a separate jira for HTTP fail-over? In some cases we may be
able to define away the problem. Eg now that 1073 is in we could modify the 2NN
to not have to fetch files via http (at least when using shared storage).
> HA: HDFS clients must handle namenode failover and switch over to the new
> active namenode.
> ------------------------------------------------------------------------------------------
>
> Key: HDFS-1973
> URL: https://issues.apache.org/jira/browse/HDFS-1973
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Suresh Srinivas
> Assignee: Aaron T. Myers
>
> During failover, a client must detect the current active namenode failure and
> switch over to the new active namenode. The switch over might make use of IP
> failover or some thing more elaborate such as zookeeper to discover the new
> active.
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