Re: little PITR annoyance

How about adding to the general TODO in case someone finds time  
before Simon?

On Jun 10, 2007, at 5:55 PM, Simon Riggs wrote:
> On Sun, 2007-06-10 at 20:48 +0200, ohp@pyrenet.fr wrote:
>>>
>>>> My questions was: why don't we start the archiving *BEFORE*  
>>>> postmaster to
>>>> make room.
>>>
>>> The archiver is executed from the postmaster, so thats not possible.
>>>
>> I'm aware of that, my point is maybe the archiver doesn't need  
>> postmaster
>> to be fully operational  (responding to db requests) to be started
>>> We could investigate where best to put some code, but it wouldn't be
>>> executed very frequently.
>> I agree, OTOH, the more PITR is used on big busy db to more this may
>> happend.
>>>
>>> Why not just execute the archive_command in a script, replacing
>>> the .ready with .done files in archive_status directory when its
>>> processed?
>>>
>> Sure, but if *I* can do it, why can't the system?
>>
>> What do you think,
>
> Just looked at the code. Does seem possible to start archiver  
> earlier -
> it has no hooks into anything else and doesn't need transactions.
>
> Starting archiver earlier would not be the only change required, since
> recovery could be very short. That will take some thought on how to
> resolve.
>
> I have other things pressing on me now, but I'll add this to my todo,
> though I'll be relying on you to test it when I get round to it.
--
Jim Nasby                                            jim@nasby.net
EnterpriseDB      http://enterprisedb.com      512.569.9461 (cell)