[Pgpool-hackers] [Pgpool-general] pgpool limitations

[Tatsuo Ishii]

> 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.
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp