'kern.maxpipekva exceeded' messages...

[Roman Streltsov]

On Tuesday 20 January 2004 04:06, Peter Losher wrote:
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> In updating one of our authoritiative name servers to 5.2-REL, we
> enountered after two days of running, kernel message like:
>
> kern.maxpipekva exceeded, please see tuning(7).
>
> appearing to the point to where you couldn't ssh into the box (because sshd
> died w/ too many files opened).  I see so mention of kern.maxpipekva on the
> tuning man page, and greping only finds kern.ipc entries.
>
> % sysctl -a | grep pipekva
> kern.ipc.maxpipekva: 10485760
> kern.ipc.maxpipekvawired: 5242880
> kern.ipc.pipekva: 131072
> kern.ipc.pipekvawired: 0
>
> Are they the same, and if so, what's are the guidelines for increasing the
> number?
Yes, you can sure if look in sys/kern/sys_pipe.c
In my case I just increased kern.ipc.maxpipekva in 16 times
Also I do not why there is any mention in tuning(7) about maxpipe (in 5.2 
current too)

Good luck
Roman