Hey Mingjie,

It's in progress, slated for a 23 release.

The latest docs are here:
https://issues.apache.org/jira/secure/attachment/12513412/HDFSHighAvailability.html

Thanks,
Eli

On Mon, Feb 6, 2012 at 1:10 AM, Mingjie Lai <m...@apache.org> wrote:
> Hi hdfs devs.
>
> I'd like to start to evaluate the nn ha feature.
>
> I know it's still a work in progress, but, is there any
> installation/configuration document available for me to start from?
>
> Is there an expected ``feature complete'' date?
>
> I watched the nn ha presentation at hw2011, and it was mentioned to be
> included in 0.23.1. Is it still the plan?
>
> Thanks,
> Mingjie

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