Re: "Hot standby"?

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От Ron Mayer
Тема Re: "Hot standby"?
Дата
Msg-id 4A81B433.9080200@cheapcomplexdevices.com
обсуждение исходный текст
Ответ на Re: "Hot standby"?  (David Fetter <david@fetter.org>)
Ответы Re: "Hot standby"?
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David Fetter wrote:
> On Tue, Aug 11, 2009 at 08:56:38AM -0500, Kevin Grittner wrote:
>> Bruce Momjian <bruce@momjian.us> wrote: 
>>  
>>> OK, so it is "warm slave".

Why isn't it just a "read only slave".  Do some systems
have read-only slave databases that can't serve as a warm
standby system as well as this one could?

>> That is technically accurate, given the preceding definitions, but
>> it has disturbing connotations.  Enough so, in my view, to merit
>> getting a little more creative in the naming.  How about "warm
>> replica"?  Other ideas?
> 
> Warm Read
> Streamed Copy

Master/Slave Replication and Warm Standby systems are common
enough terms that I can google them or look them up in many
computer science books.

While coming up with creative politically correct euphemisms
might be fun, I hope we stick near terms that other DBAs could
already be familiar with.

ISTM the best way to refer to it formally would be a  "Read Only Slave / Warm Standby"
system, even if informally we might have informal
discussions of "just how hot our slaves are" when hot-standby
features get added down the road.



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