On Fri, Jun 29, 2007 at 12:49:07AM +0300, Janne Peltonen wrote:
> On Thu, Jun 28, 2007 at 11:49:11PM +0300, Janne Peltonen wrote:
> > that's it. They are all probably trying to activate the VG with 47 PV's,
> > and it seems to take ages. It started an three-quarters of an hour ago,
> > and now I'm going to sleep (it's midnight here) and see if it'll be up
> > by tomorrow morning...
>
> So I didn't go to sleep. The VG took /one and a half hours/ to activate.
> And operations such as pvdisplay /dev/sdau1 take ages (minutes and
> minutes), and the pvdisplay appears to hog cpu. Meanwhile:
Some data to give you the feel of things:
[jmmpelto@pcn1 ~]$ time sudo service clvmd restart
Deactivating VG mappi-primary: 0 logical volume(s) in volume group "mappi-primary" now active
[ OK ]
Stopping clvm: [ OK ]
Starting clvmd: [ OK ]
Activating VGs: 2 logical volume(s) in volume group "main" now active
78 logical volume(s) in volume group "mappi-primary" now active
[ OK ]
real 4m40.448s
user 0m0.662s
sys 0m0.299s
[jmmpelto@pcn1 ~]$ time sudo vgextend mappi-primary $(for LETTER in {i..r}; do echo /dev/sd${LETTER}1; done)
Password:
Volume group "mappi-primary" successfully extended
real 0m7.534s
user 0m0.197s
sys 0m0.112s
[jmmpelto@pcn1 ~]$ time sudo service clvmd restart
Deactivating VG mappi-primary: 0 logical volume(s) in volume group "mappi-primary" now active
[ OK ]
Stopping clvm: [ OK ]
Starting clvmd: [ OK ]
Activating VGs: 2 logical volume(s) in volume group "main" now active
78 logical volume(s) in volume group "mappi-primary" now active
[ OK ]
real 43m17.340s
user 0m2.473s
sys 0m0.528s
Adding ten PV's increased the deactivation-activation-cycle time tenfold.
Whatever might be the reason for this.
--Janne
--
Janne Peltonen <janne.peltonen@xxxxxxxxxxx>
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