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From "Sanjay Radia (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7380) Add client failover functionality to o.a.h.io.(ipc|retry)
Date Thu, 11 Aug 2011 22:42:27 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7380?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13083763#comment-13083763
] 

Sanjay Radia commented on HADOOP-7380:
--------------------------------------

* Yes, lets put it in the HA branch.
* I don't have specific changes in mind but I would like to connect this up to DNS, ZK and
IP based fail-over and see how 
apis meet the needs. The branch is a good place to evolve it. Further as we plug the NN rpc
interface it will help us 
validate the idempotent attributed added by this jira.
* A client fail-over will require testing in a realistic network.  This can be a part of the
specific set of fail-over
over mechanisms we add in the HA branch.

> Add client failover functionality to o.a.h.io.(ipc|retry)
> ---------------------------------------------------------
>
>                 Key: HADOOP-7380
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7380
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: ipc
>    Affects Versions: 0.23.0
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>             Fix For: 0.23.0
>
>         Attachments: hadoop-7380-hdfs-example.patch, hadoop-7380.0.patch, hadoop-7380.1.patch,
hadoop-7380.2.patch, hdfs-7380.3.patch
>
>
> Implementing client failover will likely require changes to {{o.a.h.io.ipc}} and/or {{o.a.h.io.retry}}.
This JIRA is to track those changes.

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