Quorum based storage – Quorum-based Storage for HDFS
provides the ability for HDFS to store its own NameNode edit logs, allowing you to run a
highly available NameNode without external storage or custom fencing.
This one of the reasons we wanted to use DSE in the first place. I haven't looked
into the details here, but now we should be able to run HA NameNode without NFS!
On Sep 26, 2012, at 2:44 PM, Andrew Otto <otto(a)wikimedia.org> wrote:
Not the
proprietary bits, no.
Cool! This is exactly why I wanted to ask this question. This is actually a bit of a
relief! While I would love to try out DSE, CDH4 will almost certainly do the job. Having
the choice made for me saves me a lot of work in evaluating and researching multiple
options.
Thanks all!
On Sep 25, 2012, at 7:34 PM, Erik Moeller <erik(a)wikimedia.org> wrote:
> On Tue, Sep 25, 2012 at 7:37 AM, Andrew Otto <otto(a)wikimedia.org> wrote:
>
>> tl;dr: Datastax is cooler than Cloudera, but Datastax is not 100% open source.
Can we still use it?
>
Not the proprietary bits, no.
>
> If it's just about using the open core part, that's less problematic,
> although I generally advise against buying into open core solutions
> because the incentive structures aren't aligned (they'll continually
> try to upsell you on the cool proprietary features).
>
> --
> Erik Möller
> VP of Engineering and Product Development, Wikimedia Foundation
>
> Support Free Knowledge:
https://wikimediafoundation.org/wiki/Donate
>
> _______________________________________________
> Ops mailing list
> Ops(a)lists.wikimedia.org
>
https://lists.wikimedia.org/mailman/listinfo/ops