Re: retry shm attach for windows (WAS: Re: [HACKERS] OK, so culicidaeis *still* broken)

On Thu, May 25, 2017 at 11:34 AM, Tsunakawa, Takayuki
<tsunakawa.takay@jp.fujitsu.com> wrote:
> From: pgsql-hackers-owner@postgresql.org
>> [mailto:pgsql-hackers-owner@postgresql.org] On Behalf Of Noah Misch
>> Ten feels low to me.  The value should be be low enough so users don't give
>> up and assume a permanent hang, but there's little advantage to making it
>> lower.
>> I'd set it such that we give up in 1-5s on a modern Windows machine, which
>> I expect implies a retry count of one hundred or more.
>
> Then, maybe we can measure the time in each iteration and give up after a particular seconds.

Indeed, pgrename() does so with a 100ms sleep time between each
iteration. Perhaps we could do that and limit to 50 iterations?
-- 
Michael