SYS V IPC: changing message queue params

I need to increase the SYS V message queue params for a production
SuSE 8.2 environment. Having some trouble finding some guidance.

Specifically, I want to increase the number of messages available per
queue and system wide, and the number of bytes per queue and system
wide. I can reduce the number of queues from 128 (default) to 10 if
that helps.

Anyway, does anyone know of links on this, or know about it?

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I think you want to use sysctl.
example:
/sbin/sysctl -w kernel.msgmax=256
or use whatever number you want instead of 256.
check out the other variables in /proc/sys/kernel, especially msgmnb and
msgmni, and the man page for sysctl. You may want to modify your
/etc/sysctl.conf file. Hope this helps.
Regards,
Kyle

Richard wrote:
> I need to increase the SYS V message queue params for a production
> SuSE 8.2 environment. Having some trouble finding some guidance.
>
> Specifically, I want to increase the number of messages available per
> queue and system wide, and the number of bytes per queue and system
> wide. I can reduce the number of queues from 128 (default) to 10 if
> that helps.
>
> Anyway, does anyone know of links on this, or know about it?
>

kyle_miller24@hotmail.com wrote...
> I think you want to use sysctl.
> example:
> /sbin/sysctl -w kernel.msgmax=256
> or use whatever number you want instead of 256.
> check out the other variables in /proc/sys/kernel, especially msgmnb and
> msgmni, and the man page for sysctl. You may want to modify your
> /etc/sysctl.conf file. Hope this helps.

Hi Kyle,

I tried that a couple of weeks back, and couldn't get it to work.
What I wound up doing was adding

echo 256 > /proc/sys/kernel/msgmax

and so on to /etc/init.d/boot.local.

Seems like a kludge compared to sysctl.conf, but again I couldn't get
sysctl to do anything.

> Richard wrote:
> > I need to increase the SYS V message queue params for a production
> > SuSE 8.2 environment. Having some trouble finding some guidance.
> >
> > Specifically, I want to increase the number of messages available per
> > queue and system wide, and the number of bytes per queue and system
> > wide. I can reduce the number of queues from 128 (default) to 10 if
> > that helps.
> >
> > Anyway, does anyone know of links on this, or know about it?
> >
>
>

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