Re: "effective_io_concurrency" cannot be changed error when starting 8.4.2 instance - Mailing list pgsql-admin

From Greg Stark
Subject Re: "effective_io_concurrency" cannot be changed error when starting 8.4.2 instance
Date
Msg-id 407d949e1002081711h4b13e10cy4f571034813567c5@mail.gmail.com
Whole thread Raw
In response to "effective_io_concurrency" cannot be changed error when starting 8.4.2 instance  (Kevin Kempter <kevink@consistentstate.com>)
Responses Re: Re: "effective_io_concurrency" cannot be changed error when starting 8.4.2 instance  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-admin
On Tue, Feb 9, 2010 at 1:00 AM, Kevin Kempter
<kevink@consistentstate.com> wrote:
> I get the below error when trying to start an 8.4.2 instance
>
> Anyone know what might be causing this?
>
> FATAL:  parameter "effective_io_concurrency" cannot be changed
>

What platform is this? Did you compile it yourself? What type of
system was it compiled on?

The error means that your system does not support the system interface
we need to support prefetching. In that case effective_io_concurrency
will be a read-only parameter set to 0 and any attempt to set it will
result in an error.



--
greg

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