[Pgpool-general] pgpool limitations

[Guillaume Lelarge]

On Sat, 2011-07-30 at 08:38 +0900, Tatsuo Ishii wrote:
> > On Thu, Jul 28, 2011 at 10:40 PM, Tatsuo Ishii <ishii at sraoss.co.jp> wrote:
> > 
> >> >> Because newly added node is likely to have out of sync databases. Thus
> >> >> bringing it online immediately will allow user to use obsolete
> >> >> databases. You should do online recovery first.
> >> >>
> >> >
> >> > Since the new slave being added is configured using streaming
> >> replication,
> >> > it is lagging behind the master just as much as any other currently
> >> > configured slave. So from that standpoint the new slave should be allowed
> >> to
> >> > serve queries.
> >>
> >> It will be possible with pgpool-II 3.1 (without resetting existing
> >> connections).
> >>
> > 
> > Is there something in the works to enable this, or is this feature still in
> > design phase? If it is already being/been developed, I wish to know if this
> > can be back-patched to a point release of pgpool 3.0.x.
> 
> It has been already in pgpool-II 3.1 alpha version.
> Currently there's no plan to back-patching to 3.0.x.

I certainly hope we won't backpatch a new feature. That would be insane.


-- 
Guillaume
  http://blog.guillaume.lelarge.info
  http://www.dalibo.com