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From Vinayakumar B <vinayakum...@apache.org>
Subject Re: NameNode as a single point of failure
Date Thu, 02 Jul 2015 14:36:26 GMT
Hi..
Did you look at the HDFS Namenode high availability?

-Vinay
On Jul 2, 2015 11:50 AM, "Dmitry Salychev" <darkness.bsd@gmail.com> wrote:

> Hello, HDFS Developers.
>
> I know that NN is a single point of failure of an entire HDFS cluster. If
> it fails, the cluster will be unavailable no matter how many DN there. I
> know that there is an initiative <
> http://www.wandisco.com/system/files/documentation/Meetup-ConsensusReplication.pdf>
> which introduces ConsensusNode (as I can see it looks like distributed NN)
> and related issues (HDFS-6469 <
> https://issues.apache.org/jira/browse/HDFS-6469>, HADOOP-10641 <
> https://issues.apache.org/jira/browse/HADOOP-10641> and HDFS-7007 <
> https://issues.apache.org/jira/browse/HDFS-7007>). So, I'd like to ask.
>
> Has this NN-SPOF problem been solved? If it hasn't, can you show me an
> entry point where I can help to solve it?
>
> Thanks for your time.
>
>
>

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