| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Peter Geoghegan <pg(at)heroku(dot)com>, Ants Aasma <ants(dot)aasma(at)eesti(dot)ee>, Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru>, "Tsunakawa, Takayuki" <tsunakawa(dot)takay(at)jp(dot)fujitsu(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Is the unfair lwlock behavior intended? |
| Date: | 2016-05-25 18:15:37 |
| Message-ID: | 20160525181537.35qisp6fdetahriu@alap3.anarazel.de |
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| Lists: | pgsql-hackers |
On 2016-05-25 14:09:43 -0400, Robert Haas wrote:
> I think this is looking at the problem from the wrong angle. The OP's
> complaint is pretty fair: a 30-second wait for ProcArrayLock is
> horrendous, and if that's actually something that is happening with
> any significant regularity on well-configured systems, we need to fix
> it somehow.
No disagreement there.
> I don't think we can just say "oh, well,
> sometimes the system becomes totally unresponsive for more than 30
> seconds, but we don't care". We have to care about that.
I don't think anybody was doing that? The first questions on this thread
were about upgrading and retesting...
Andres
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