Re: Standalone synchronous master

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От Jim Nasby
Тема Re: Standalone synchronous master
Дата
Msg-id 52D06782.8010006@nasby.net
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Ответ на Re: Standalone synchronous master  ("Joshua D. Drake" <jd@commandprompt.com>)
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On 1/10/14, 12:59 PM, Joshua D. Drake wrote:
> I know I am the one that instigated all of this so I want to be very clear on what I and what I am confident that my
customerswould expect.
 
>
> If a synchronous slave goes down, the master continues to operate. That is all. I don't care if it is configurable (I
wouldbe fine with that). I don't care if it is not automatic (e.g; slave goes down and we have to tell the master to
continue).
>
> I have read through this thread more than once, and I have also went back to the docs. I understand why we do it the
waywe do it. I also understand that from a business requirement for 99% of CMD's customers, it's wrong. At least in the
senseof providing continuity of service.
 

+1

I understand that this is a degredation of full-on sync rep. But there is definite value added with sync-rep that can
automatically(or at least easily) degrade over async; it protects you from single failures. I fully understand that it
willnot protect you from a double failure. That's OK in many cases.
 
Jim C. Nasby, Data Architect                       jim@nasby.net
512.569.9461 (cell)                         http://jim.nasby.net



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