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https://issues.apache.org/jira/browse/HDFS-1973?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aaron T. Myers updated HDFS-1973:
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Attachment: HDFS-1973-HDFS-1623.patch
Here's an updated patch which builds upon the previous patch and addresses all
of the issues I mentioned above.
The key differences between this patch and the previous:
# Take advantage of the changes in HADOOP-7635 and HDFS-2337 to enable cleanup
of RPC connection resources.
# Add the @Idempotent annotation to more methods of {{ClientProtocol}}.
# Add some appropriate synchronization to {{ConfiguredFailoverProxyProvider}}.
Please review this patch for potential inclusion in the HDFS-1623 branch.
> 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
> Attachments: HDFS-1973-HDFS-1623.patch, hdfs-1973.0.patch
>
>
> 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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