Losing confidence in FreeBSD 6.x in a loaded environment ... :(
lydianconcepts at gmail.com
Mon Jun 26 23:40:24 UTC 2006
Well, I have to say that I had to reboot my 6.1 gateway on Sunday. It
was 5.X prior to this and never had to be rebooted.
On 6/26/06, Marc G. Fournier <scrappy at hub.org> wrote:
> Okay, now this is getting ridiculous .. and for all those that have been
> helping me debug things over the past few days, this isn't a rant against
> "people", its a rant against the state of FreeBSD 6.x :(
> Its got SERIOUS problems.
> As easy as it is to 'blame the hardware', I'm up to my third FreeBSD 6.x
> system that is having problems now, all of which ran flawlessly under
> FreeBSD 4-STABLE under some serious load ...
> And by 'serious load' .. jupiter (the one that was giving me the SegFaults
> under those two kernels I tried) was up to 100 vServers running on it
> while I was clearning things off of pluto to upgrade her to 6.x ... and
> something like 209 days uptime ...
> Right now, I have 3 FreeBSD 4.x left in production, and 4 FreeBSD 6.x ...
> One 4.x server is running 87 vServers, has been up for 74 days now, and
> vmstat 5 shows:
> # vmstat 5
> procs memory page disks faults cpu
> r b w avm fre flt re pi po fr sr da0 da1 in sy cs us sy id
> 3 5 0 3594432 228088 60 3 3 1 73 310 0 0 584 562 569 28 29 43
> 3 5 0 3578556 227384 546 0 1 7 592 0 0 18 434 1869 1647 7 11 83
> 2 5 0 3564464 225092 807 0 0 0 505 0 2 4 382 2698 2684 8 9 83
> One of my 6.x just went down for the second time today ... locked up solid
> ... first time it did it today, it was hitting maxpipekva, which seems to
> be my biggest headache so far with 6.x ...
> Pluto, the one that we've been pretty much fighting over this past
> weekend, is running 69 vServers, 1363 processes, a loadavg <1 ... and I'm
> lucky to keep it running for 24 hours ...
> maxpipekva is set to:
> kern.ipc.maxpipekva: 67108864 - kern.ipc.pipekva: 35782656
> It just doesn't feel like 6.x is as robust under loaded conditions as
> 4-STABLE was ... :(
> I don't expect anything to get fixed based on this email ... it was more
> to get off my chest about those that have been suggesting that I'm
> overloading the server(s) and causing the problems ... I loaded them worse
> under 4.x, with less problems ... hell, I got better uptimes under load
> when I was using unionfs then 6.x right now is giving me *without* any
> "funny mounts" :(
> Marc G. Fournier Hub.Org Networking Services (http://www.hub.org)
> Email . scrappy at hub.org MSN . scrappy at hub.org
> Yahoo . yscrappy Skype: hub.org ICQ . 7615664
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