Achieving 100% consitency

Jonathan Langevin jlangevin at loomlearning.com
Tue Aug 30 15:53:41 EDT 2011


I can't speak for Jeremiah, but that's the joy that I'll be dealing with
once we recreate our "cluster" as a proper 3-node (using disparate servers).
*

 <http://www.loomlearning.com/>
 Jonathan Langevin
Systems Administrator
Loom Inc.
Wilmington, NC: (910) 241-0433 - jlangevin at loomlearning.com -
www.loomlearning.com - Skype: intel352
*


On Tue, Aug 30, 2011 at 3:50 PM, Les Mikesell <lesmikesell at gmail.com> wrote:

> On Tue, Aug 30, 2011 at 2:33 PM, Jeremiah Peschka
> <jeremiah.peschka at gmail.com> wrote:
> > That's the advice I usually give and the exact same reasons I give it.
> >
> > In an off-list email (as Jonathan knows), I equated it to saying "You
> should never do RDBMS development without a big enterprise grade server with
> $500k of SAN behind it." I typically say to build a dev environment that is
> as close to production as will give you production-like performance. Putting
> 3 nodes on my crappy stock laptop HDD isn't going to give me anything
> remotely like a production environment (well… there is always EC2
> performance).
> >
> > We see these questions a lot on the list and I don't feel that telling
> clients "Well, it's gonna suck until you get it into production" isn't the
> best possible answer. A lot of people seem to be developing on 3-node
> clusters made out of Mac Minis, HP micro servers, and EC2; but even more
> people seem to be developing on laptops and wondering why they're seeing
> horrible performance.
>
> How do you test the inconsistent states you will see in production
> when you develop with a one-node cluster?  Or, for that matter on a
> 3-node cluster on the same box where partitioning isn't going to
> happen without some unusual intervention to emulate it?
>
> --
>  Les Mikesell
>   lesmikesell at gmail.com
>
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>
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