On Wed, May 12, 2010 at 2:50 AM, Simon Riggs <simon@2ndquadrant.com> wrote:
> On Tue, 2010-05-11 at 14:01 +0900, Fujii Masao wrote:
>> On Mon, May 10, 2010 at 3:27 PM, Simon Riggs <simon@2ndquadrant.com> wrote:
>> > I already explained that killing the startup process first is a bad idea
>> > for many reasons when shutdown was discussed. Can't remember who added
>> > the new standby shutdown code recently, but it sounds like their design
>> > was pretty poor if it didn't include shutting down properly with HS. I
>> > hope they fix the bug they have introduced. HS was never designed to
>> > work that way, so there is no flaw there; it certainly worked when
>> > committed.
>>
>> New smart shutdown during recovery doesn't kill the startup process until
>> all of the read only backends have gone away. So it works fine with HS.
>
> Yes, I thought some more about what Robert said. HS works identically to
> normal running in this regard, so there's no hint of a bug or design
> flaw on that for either of us to worry about.
I'm not sure what to make of this. Sometimes not shutting down
doesn't sound like a feature to me.
http://archives.postgresql.org/pgsql-hackers/2010-05/msg00098.php
http://archives.postgresql.org/pgsql-hackers/2010-05/msg00103.php
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise Postgres Company