Re: Unsupported effective_io_concurrency platforms

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Unsupported effective_io_concurrency platforms
Date: 2009-03-23 20:27:56
Message-ID: 1237840076.19723.100.camel@jd-laptop.pragmaticzealot.org
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On Mon, 2009-03-23 at 16:21 -0400, Bruce Momjian wrote:
> If a platform doesn't have posix_fadvise(), we don't allow
> effective_io_concurrency to be set to anything but zero:
>
> test=> set effective_io_concurrency = 1;
> ERROR: 1 is outside the valid range for parameter "effective_io_concurrency" (0 .. 0)
> test=> set effective_io_concurrency = 0;
> SET
>
> Do we want to give a more informative error message, like "not supported
> on this platform?"

I would say so.

Joshua D. Drake

>
> --
> Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
> EnterpriseDB http://enterprisedb.com
>
> + If your life is a hard drive, Christ can be your backup. +
>
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