Обсуждение: Replication docs update

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Replication docs update

От
Bruce Momjian
Дата:
Our chapter, "Comparison of Different Solutions", needs an update to use
our new streaming replication terminology, and an update to mention the
synchronous option.

Patch attached.  I would like to apply it to head and 9.1.

--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +

Вложения

Re: Replication docs update

От
Magnus Hagander
Дата:
On Tue, Mar 20, 2012 at 22:26, Bruce Momjian <bruce@momjian.us> wrote:
> Our chapter, "Comparison of Different Solutions", needs an update to use
> our new streaming replication terminology, and an update to mention the
> synchronous option.
>
> Patch attached.  I would like to apply it to head and 9.1.

Is it really a good idea to remove the name "hot standby" where you've
done so? It's a term that's pretty well set by now. Maybe instad "hot
standby using transaction log replication" instead of taking it away
completely?

(And i'm sure Thom will find a bunch of typos, but there is no way
around that I think..)

--
 Magnus Hagander
 Me: http://www.hagander.net/
 Work: http://www.redpill-linpro.com/

Re: Replication docs update

От
Bruce Momjian
Дата:
On Wed, Mar 21, 2012 at 12:01:34PM +0100, Magnus Hagander wrote:
> On Tue, Mar 20, 2012 at 22:26, Bruce Momjian <bruce@momjian.us> wrote:
> > Our chapter, "Comparison of Different Solutions", needs an update to use
> > our new streaming replication terminology, and an update to mention the
> > synchronous option.
> >
> > Patch attached.  I would like to apply it to head and 9.1.
>
> Is it really a good idea to remove the name "hot standby" where you've
> done so? It's a term that's pretty well set by now. Maybe instad "hot
> standby using transaction log replication" instead of taking it away
> completely?

Well, hot/warm standby is really a side-feature of replication, not a
replication technology itself.  WAL streaming is a replication
technology.  For example, Shared Disk Failover is technically a warm
standby too.

--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +

Re: Replication docs update

От
Magnus Hagander
Дата:
On Wed, Mar 21, 2012 at 16:44, Bruce Momjian <bruce@momjian.us> wrote:
> On Wed, Mar 21, 2012 at 12:01:34PM +0100, Magnus Hagander wrote:
>> On Tue, Mar 20, 2012 at 22:26, Bruce Momjian <bruce@momjian.us> wrote:
>> > Our chapter, "Comparison of Different Solutions", needs an update to use
>> > our new streaming replication terminology, and an update to mention the
>> > synchronous option.
>> >
>> > Patch attached.  I would like to apply it to head and 9.1.
>>
>> Is it really a good idea to remove the name "hot standby" where you've
>> done so? It's a term that's pretty well set by now. Maybe instad "hot
>> standby using transaction log replication" instead of taking it away
>> completely?
>
> Well, hot/warm standby is really a side-feature of replication, not a
> replication technology itself.  WAL streaming is a replication

True. I'm just saying it's a term that many are familiar with, and
thus removing it doesn't entirely help. Removing PITR is a good idea
however :-)

> technology.  For example, Shared Disk Failover is technically a warm
> standby too.

Pretty sure Shared Disk qualifies as cold standby.

--
 Magnus Hagander
 Me: http://www.hagander.net/
 Work: http://www.redpill-linpro.com/

Re: Replication docs update

От
Bruce Momjian
Дата:
On Wed, Mar 21, 2012 at 05:06:27PM +0100, Magnus Hagander wrote:
> On Wed, Mar 21, 2012 at 16:44, Bruce Momjian <bruce@momjian.us> wrote:
> > On Wed, Mar 21, 2012 at 12:01:34PM +0100, Magnus Hagander wrote:
> >> On Tue, Mar 20, 2012 at 22:26, Bruce Momjian <bruce@momjian.us> wrote:
> >> > Our chapter, "Comparison of Different Solutions", needs an update to use
> >> > our new streaming replication terminology, and an update to mention the
> >> > synchronous option.
> >> >
> >> > Patch attached.  I would like to apply it to head and 9.1.
> >>
> >> Is it really a good idea to remove the name "hot standby" where you've
> >> done so? It's a term that's pretty well set by now. Maybe instad "hot
> >> standby using transaction log replication" instead of taking it away
> >> completely?
> >
> > Well, hot/warm standby is really a side-feature of replication, not a
> > replication technology itself.  WAL streaming is a replication
>
> True. I'm just saying it's a term that many are familiar with, and
> thus removing it doesn't entirely help. Removing PITR is a good idea
> however :-)

Well, the term doesn't help describe what it is, so familiar doesn't
help us much.

> > technology.  For example, Shared Disk Failover is technically a warm
> > standby too.
>
> Pretty sure Shared Disk qualifies as cold standby.

Why is it cold?  It can start up right away.  What does warm mean then?

--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +

Re: Replication docs update

От
Bruce Momjian
Дата:
On Tue, Mar 20, 2012 at 05:26:43PM -0400, Bruce Momjian wrote:
> Our chapter, "Comparison of Different Solutions", needs an update to use
> our new streaming replication terminology, and an update to mention the
> synchronous option.
>
> Patch attached.  I would like to apply it to head and 9.1.

Applied to head.

--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + It's impossible for everything to be true. +