| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | The Hermit Hacker <scrappy(at)hub(dot)org> |
| Cc: | jamexu <jamexu(at)telekbird(dot)com(dot)cn>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Re[2]: Re: [PATCHES] A patch for xlog.c |
| Date: | 2001-02-27 03:42:56 |
| Message-ID: | 200102270342.WAA08949@candle.pha.pa.us |
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| Lists: | pgsql-hackers |
> > the only problem is because if we need to tune Postermaster to use
> > large buffer while system havn't so many SYSV shared memory, in many
> > systemes, we need to recompile OS kernel, this is a small problem to install
> > PGSQL to product environment.
>
> What? You don't automatically recompile your OS kernel when you build a
> system in the first place?? First step on any OS install of FreeBSD is to
> rid myself of the 'extras' that are in the generic kernel, and enable
> SharedMemory (even if I'm not using PgSQL on that machine) ...
He is saying the machine is already in production. Suppose he has run
PostgreSQL for a few months, then needs to increase number of buffers.
He can't exceed the kernel limit unless he recompiles.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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