[one-users] max number of VMs that can be started at once ?

[sebastien goasguen]

Thanks Tino,

That makes sense, I do have 4 crashed prologs.
The remaining transfers did finish eventually.

I might increase the number of threads.

-sebastien


On Tue, Jul 21, 2009 at 12:08 PM, Tino Vazquez<tinova at fdi.ucm.es> wrote:
> Hi Sebastien,
>
> There is indeed a limit in the number of threads that the transfer
> manager uses. It is currently 10, and it can be changed in line 39 of
> $ONE_LOCATION/lib/mads/one_tm.rb.
>
> I am assuming that machines 67-72 are eventually transferred. It is
> odd though that you experience a 6 transfers limit instead of the
> expected 10. This may be due to previous active epilogs or maybe even
> crashed prologs. OpenNebula 1.4 will offer the ability to cancel this
> crashed threads.
>
> If there is no obvious explanation for the missing 4 transfers you can
> send through the tm_ssh.log for us to analyze.
>
> Best regards,
>
> -Tino
>
> --
> Constantino Vázquez, Grid Technology Engineer/Researcher:
> http://www.dsa-research.org/tinova
> DSA Research Group: http://dsa-research.org
> Globus GridWay Metascheduler: http://www.GridWay.org
> OpenNebula Virtual Infrastructure Engine: http://www.OpenNebula.org
>
>
>
> On Mon, Jul 20, 2009 at 3:13 PM, sebastien goasguen<sebgoa at clemson.edu> wrote:
>> Hi,
>>
>> Is there a maximum number of VM that can be started at once ?
>>
>> I am trying to deploy 12 VMs at once on three hosts.
>> I have 6 VMs in the process of starting.
>> But the other six have not even started to execute the tm_clone.sh
>> script, even though they have been created in /one/var/ that there is
>> a transfer file. The log shows them as being in prolog state.
>>
>> There are no errors in var/log/oned.log and var/log/tm_ssh.log, here
>> is all I see:
>>
>> Mon Jul 20 14:45:45 2009: TRANSFER 67 /home/oneadmin/one/var/67/transfer.0
>> Mon Jul 20 14:45:46 2009: TRANSFER 68 /home/oneadmin/one/var/68/transfer.0
>> Mon Jul 20 14:45:46 2009: LOG - 64 tm_clone.sh: Executed "ssh
>> lxbrl2315 sudo /usr/sbin/lvcreate -L25G -n 64-0 xen_vg".
>> Mon Jul 20 14:45:46 2009: LOG - 64 tm_clone.sh: Creating a link from
>> /opt/opennebula/64/images/disk.0 to the 64-0 volume
>> Mon Jul 20 14:45:46 2009: LOG - 64 tm_clone.sh: Executed "ssh
>> lxbrl2315 ln -s /dev/xen_vg/64-0 /opt/opennebula/64/images/disk.0".
>> Mon Jul 20 14:45:46 2009: LOG - 65 tm_clone.sh: Executed "ssh
>> lxbrl2316 sudo /usr/sbin/lvcreate -L25G -n 65-0 xen_vg".
>> Mon Jul 20 14:45:46 2009: LOG - 65 tm_clone.sh: Creating a link from
>> /opt/opennebula/65/images/disk.0 to the 65-0 volume
>> Mon Jul 20 14:45:46 2009: LOG - 66 tm_clone.sh: Executed "ssh
>> lxbrl2316 sudo /usr/sbin/lvcreate -L25G -n 66-0 xen_vg".
>> Mon Jul 20 14:45:46 2009: LOG - 66 tm_clone.sh: Creating a link from
>> /opt/opennebula/66/images/disk.0 to the 66-0 volume
>> Mon Jul 20 14:45:47 2009: LOG - 65 tm_clone.sh: Executed "ssh
>> lxbrl2316 ln -s /dev/xen_vg/65-0 /opt/opennebula/65/images/disk.0".
>> Mon Jul 20 14:45:47 2009: LOG - 66 tm_clone.sh: Executed "ssh
>> lxbrl2316 ln -s /dev/xen_vg/66-0 /opt/opennebula/66/images/disk.0".
>> Mon Jul 20 14:46:12 2009: TRANSFER 69 /home/oneadmin/one/var/69/transfer.0
>> Mon Jul 20 14:46:12 2009: TRANSFER 70 /home/oneadmin/one/var/70/transfer.0
>> Mon Jul 20 14:46:12 2009: TRANSFER 71 /home/oneadmin/one/var/71/transfer.0
>> Mon Jul 20 14:46:12 2009: TRANSFER 72 /home/oneadmin/one/var/72/transfer.0
>>
>> 67 through 72 are not starting but 61-66 are in the process ....
>>
>> any ideas ?
>>
>> Cheers,
>>
>> -sebastien
>>
>> --
>> ---
>> Sebastien Goasguen
>> School of Computing
>> Clemson University
>> 864-656-6753
>> http://runseb.googlepages.com
>> _______________________________________________
>> Users mailing list
>> Users at lists.opennebula.org
>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>
>



-- 
---
Sebastien Goasguen
School of Computing
Clemson University
864-656-6753
http://runseb.googlepages.com