On 2023-09-25 09:56, Michael Paquier wrote:
> It seems to me that you are right here. It would make sense to me to
> say that force=true is equivalent to nowait=false, as in "I'm OK to
> wait on the lockas I want to make sure that the stats are flushed at
> this point". Currently force=true means nowait=true, as in "I'm OK to
> not have the stats flushed if I cannot take the lock".
>
> Seeing the three callers of pgstat_report_wal(), the checkpointer
> wants to force its way twice, and the WAL writer does not care if they
> are not flushed immediately at it loops forever in this path.
>
> A comment at the top of pgstat_report_wal() would be nice to document
> that a bit better, at least.
Thank you for the review. Certainly, adding a comments is a good idea. I
added a comment.
Ryoga Yoshida