From: | Magnus Hagander <magnus(at)hagander(dot)net> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | "Decibel!" <decibel(at)decibel(dot)org>, Robert Treat <xzilla(at)users(dot)sourceforge(dot)net>, pgsql-hackers(at)postgresql(dot)org, Euler Taveira de Oliveira <euler(at)timbira(dot)com> |
Subject: | Re: temporary statistics option at initdb time |
Date: | 2008-08-25 15:33:35 |
Message-ID: | 48B2D0CF.9010209@hagander.net |
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Lists: | pgsql-hackers |
Tom Lane wrote:
> Magnus Hagander <magnus(at)hagander(dot)net> writes:
>> Tom Lane wrote:
>>> I think this is introducing complication and race conditions to solve a
>>> problem that no one will really care about. Just let people change the
>>> filename at SIGHUP and document that doing that on-the-fly may cause
>>> stats queries to fail for a short interval.
>
>> Ok, I'll do it that way.
>
> BTW, it might be worth tweaking the stats collector to dump stats
> immediately after responding to SIGHUP, just to narrow this window
> as much as possible.
Pah, that is too obvious :-)
Yeah, should've thought of that, will make that happen.
> [ squint... ] Actually, it looks like the stats collector SIG_IGNores
> SIGHUP? That can't be right (any more) can it?
It did, until after my patch that was applied a couple of minutes ago.
After the patch, it cares about SIGHUP.
//Magnus
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