Tom Lane wrote:
>
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > I was wondering, when we start to reuse a WAL file, do we know that all
> > dirty buffers modified in that WAL file have been flushed to disk?
>
> Yes. At least two checkpoints ago, in fact.
Isn't the following what Bruce asked ?
/** mdsync() -- Sync storage.**/
int
mdsync()
{sync();if (IsUnderPostmaster) sleep(2);sync();return SM_SUCCESS;
}
regards,
Hiroshi Inoue
