Re: Recovery Test Framework

On Mon, 2009-01-12 at 13:04 -0500, Tom Lane wrote:

> Simon didn't ramp up
> his effort until around September IIRC.  

The main topic of snapshot creation was being discussed at PGcon in May
and another sponsors got serious then. I started working on a coherent
detailed design in July, but didn't publish for another month while I
waited for sponsors to confirm. The shape of the patch was coming
together over previous months.

I published the "infrastructure" patch on 1 Sept, which is about 35% of
current patch, deliberately to allow Sync Rep to integrate.

> He's done yeoman work since then, 

Thanks.

> but it can hardly be surprising that we're faced with
> a slip-or-cut-the-feature decision now.

It was always going to be tight; I said as much to Bruce last February
and reconfirmed that in May after talking with Suzuki-san's team. I
could have ignored Sync Rep completely and made it less tight for myself
and more difficult for the project.

How much are we going to slip by? Async Commit was committed to CVS on 
1 Aug 2007, exactly 4 months after deadline for 8.3. At moment we are
2.4 months part deadline on 8.4. We hoped 8.4 would be different: it has
been - we have got much much more done in the same time, just we have a
long tail again.

I think we should just deal with things as they are now and put in a
rule for next time that we auto-chop/no discussion any big patches
submitted on last commit fest that haven't already had feedback from
earlier fests.

-- Simon Riggs           www.2ndQuadrant.comPostgreSQL Training, Services and Support