Re: pgsql: Fix a couple of bugs in MultiXactId freezing

Поиск
Список
Период
Сортировка
От Tom Lane
Тема Re: pgsql: Fix a couple of bugs in MultiXactId freezing
Дата
Msg-id 27768.1386103569@sss.pgh.pa.us
обсуждение исходный текст
Ответ на Re: pgsql: Fix a couple of bugs in MultiXactId freezing  (Noah Misch <noah@leadboat.com>)
Ответы Re: pgsql: Fix a couple of bugs in MultiXactId freezing
Re: pgsql: Fix a couple of bugs in MultiXactId freezing
Список pgsql-hackers
Noah Misch <noah@leadboat.com> writes:
> On Tue, Dec 03, 2013 at 07:26:38PM +0100, Andres Freund wrote:
>> On 2013-12-03 13:14:38 -0500, Noah Misch wrote:
>>> On Tue, Dec 03, 2013 at 04:37:58PM +0100, Andres Freund wrote:
>>>> I currently don't see fixing the errorneous freezing of lockers (not the
>>>> updater though) without changing the wal format or synchronously waiting
>>>> for all lockers to end. Which both see like a no-go?
> 
>>> Not fixing it at all is the real no-go.  We'd take both of those undesirables
>>> before just tolerating the lost locks in 9.3.

>> I think it's changing the wal format then.

> I'd rather have an readily-verifiable fix that changes WAL format than a
> tricky fix that avoids doing so.  So, modulo not having seen the change, +1.

Yeah, same here.

After some discussion, the core committee has concluded that we should go
ahead with the already-wrapped releases.  9.2.6 and below are good anyway,
and despite this issue 9.3.2 is an improvement over 9.3.1.  We'll plan to
do a 9.3.3 as soon as the multixact situation can be straightened out;
but let's learn from experience and not try to fix it in a panic.
        regards, tom lane



В списке pgsql-hackers по дате отправления:

Предыдущее
От: Tom Lane
Дата:
Сообщение: Re: Why we are going to have to go DirectIO
Следующее
От: Alvaro Herrera
Дата:
Сообщение: Re: pgsql: Fix a couple of bugs in MultiXactId freezing