[haiku-sysadmin] Re: Notification for 188.40.89.174 -> http:ERROR

  • From: Oliver Tappe <zooey@xxxxxxxxxxxxxxx>
  • To: haiku-sysadmin@xxxxxxxxxxxxx
  • Date: Tue, 03 Aug 2010 17:05:24 +0200

Hi,

On 2010-08-03 at 13:10:10 [+0200], Matt Madia <mattmadia@xxxxxxxxx> wrote:
> On Tue, Aug 3, 2010 at 10:46,  <support@xxxxxxxxxx> wrote:
> > Notification for 188.40.89.174:
> >
> > ==> HTTP <==
> > State is now:   ERROR    (12:46h 2010.08.03)
> > State before:   OK       (was about 1 month)
> > Service params: port=80 path=/ hostname=dev.haiku-os.org
> > Service uptime: 99.91%
> > Check output:
> >  >  timeout after 25 seconds - execution expired
> 
> ssh was non-responsive.
> according to top on baron, vmdev's cpu & ram usage were pegged.
>  7184 root      20   0 1683m 1.5g  772 S  200 18.8   4281:30 qemu-kvm
> 
> here's the server stats:
> http://server-stats.haiku-os.org/stats?host=vmdev.haiku-os.org&plugin=apache&plugin=cpu&plugin=df&plugin=disk&plugin=interface&plugin=load&plugin=memory&plugin=postgresql&plugin=processes&plugin=vmem&timespan=hour&button=Ok
> 
> 
> ...Not sure what caused the memory & processes to spike.
> baron:/etc/init.d # service VM-dev restart
> 
> 
> After restarting ( baron:/etc/init.d # service VM-dev restart ), it's
> memory usage went past 1536, causing it to be non-responsive.
> I increased the ram to 2048 in /etc/init.d/VM-dev and after another
> restart, it seems to be happy.
> 1390 root      20   0 2190m 405m 1380 S    1  5.1   0:48.23 qemu-kvm

Thanks for the info. I have checked the logs, but did not find anything that 
would explain the increased memory use, especially not directly after boot. :-\

Just now, I have reconfigured (and restarted) all VMs to let their I/O bypass 
the hosts cache, which should considerably lower the memory pressure on baron. 
Before, the image-file as well as the VMs disk blocks had to travel 
through the host cache. Now it should be only the image-file.

Additionally, I noticed that the NTP configuration got hosed during one of the 
recent package upgrades, so I invested some time to get a proper NTP setup on 
baron and on all VMs, which hopefully shouldn't get busted again 
(for the curious: we are now using the "locale" ntp servers provided by 
Hetzner).

cheers,
        Oliver

Other related posts:

  1. Home
  2. haiku-sysadmin
  3. Archive
  4. 08-2010