Re: Sync Rep v19

Fujii Masao <masao.fujii@gmail.com>

From: Fujii Masao <masao.fujii@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Simon Riggs <simon@2ndquadrant.com>, pgsql-hackers@postgresql.org
Date: 2011-03-04T04:27:50Z
Lists: pgsql-hackers
On Fri, Mar 4, 2011 at 7:01 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Simon Riggs <simon@2ndQuadrant.com> writes:
>> Anyway, this is code in the interrupt handler and only gets executed
>> when we receive SIGTERM for a fast shutdown.
>
> I trust it's not getting *directly* executed from the interrupt handler,
> at least not without ImmediateInterruptOK.

Yes, the backend waits for replication while cancel/die interrupt is
being blocked, i.e., InterruptHoldoffCount > 0. So SIGTERM doesn't
lead the waiting backend to there directly. The backend reaches there
after returning the result.

Regards,

-- 
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center