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Posted to users@cloudstack.apache.org by jordan j <yo...@gmail.com> on 2022/09/26 09:01:36 UTC
update template cache
Hey everyone,
Looking for automated way to deploy VHD image as a template i have done
this:
- create a dummy template from VM
- change the dummy template VHD on the NFS with the VHD image i have
prepared
So far so good but as VMs are created, the template VHD is cached on the
hypervisor.
Now if the template VHD on the NFS is changed again and a new VM is
launched on a hypervisor that has the image cached, the new VM will not be
created from the updated VHD disk.
I tried to delete the cached image on the hypervisor manually but ACS does
not like that and instead of downloading the new image error about a
missing vhd file is presented.
Is there any way to make cloudstack intentionally refresh the hypervisor
image cache?
Regards,
Jordan
Re: update template cache
Posted by jordan j <yo...@gmail.com>.
Changing the template and refreshing the cache works like a charm.
I noticed that as the new cached image is created the old one remains.
I scanned the whole database for the uuid as it is nowhere to be found
except in events when a new VM is created.
Is there a table or place where I can get the ID of the old cached image
and delete it? How does ACS track and locate cached images?
Regards,
Jordan
On Mon, Sep 26, 2022 at 3:38 PM jordan j <yo...@gmail.com> wrote:
> Thank you! :)
>
> On Mon, Sep 26, 2022 at 3:08 PM Wei ZHOU <us...@gmail.com> wrote:
>
>> Hi Jordan,
>>
>> As said, you can find the information of template cache on primary storage
>> in table `template_spool_ref` table in cloud database.
>> If you want to clear the template cache, just remove the corresponding
>> record from the database, cloudstack will copy the template from secondary
>> storage to primary storage.
>>
>> -Wei
>>
>> On Mon, 26 Sept 2022 at 13:44, jordan j <yo...@gmail.com> wrote:
>>
>> > I don't have ssl keys so i cannot import it.
>> > Is there a better way to do it, I am all ears :)?
>> >
>> > Best regards,
>> > Jordan
>> >
>> >
>> >
>> > On Mon, Sep 26, 2022 at 12:10 PM Wei ZHOU <us...@gmail.com>
>> wrote:
>> >
>> > > Hi Jordan,
>> > >
>> > > You may look at the `template_spool_ref` table in the `cloud`
>> database.
>> > >
>> > > btw: why not register the new template ?
>> > >
>> > > -Wei
>> > >
>> > > On Mon, 26 Sept 2022 at 11:02, jordan j <yo...@gmail.com> wrote:
>> > >
>> > > > Hey everyone,
>> > > >
>> > > > Looking for automated way to deploy VHD image as a template i have
>> done
>> > > > this:
>> > > > - create a dummy template from VM
>> > > > - change the dummy template VHD on the NFS with the VHD image i have
>> > > > prepared
>> > > >
>> > > > So far so good but as VMs are created, the template VHD is cached on
>> > the
>> > > > hypervisor.
>> > > >
>> > > > Now if the template VHD on the NFS is changed again and a new VM is
>> > > > launched on a hypervisor that has the image cached, the new VM will
>> not
>> > > be
>> > > > created from the updated VHD disk.
>> > > >
>> > > > I tried to delete the cached image on the hypervisor manually but
>> ACS
>> > > does
>> > > > not like that and instead of downloading the new image error about a
>> > > > missing vhd file is presented.
>> > > >
>> > > > Is there any way to make cloudstack intentionally refresh the
>> > hypervisor
>> > > > image cache?
>> > > >
>> > > > Regards,
>> > > > Jordan
>> > > >
>> > >
>> >
>>
>
Re: update template cache
Posted by jordan j <yo...@gmail.com>.
Thank you! :)
On Mon, Sep 26, 2022 at 3:08 PM Wei ZHOU <us...@gmail.com> wrote:
> Hi Jordan,
>
> As said, you can find the information of template cache on primary storage
> in table `template_spool_ref` table in cloud database.
> If you want to clear the template cache, just remove the corresponding
> record from the database, cloudstack will copy the template from secondary
> storage to primary storage.
>
> -Wei
>
> On Mon, 26 Sept 2022 at 13:44, jordan j <yo...@gmail.com> wrote:
>
> > I don't have ssl keys so i cannot import it.
> > Is there a better way to do it, I am all ears :)?
> >
> > Best regards,
> > Jordan
> >
> >
> >
> > On Mon, Sep 26, 2022 at 12:10 PM Wei ZHOU <us...@gmail.com> wrote:
> >
> > > Hi Jordan,
> > >
> > > You may look at the `template_spool_ref` table in the `cloud` database.
> > >
> > > btw: why not register the new template ?
> > >
> > > -Wei
> > >
> > > On Mon, 26 Sept 2022 at 11:02, jordan j <yo...@gmail.com> wrote:
> > >
> > > > Hey everyone,
> > > >
> > > > Looking for automated way to deploy VHD image as a template i have
> done
> > > > this:
> > > > - create a dummy template from VM
> > > > - change the dummy template VHD on the NFS with the VHD image i have
> > > > prepared
> > > >
> > > > So far so good but as VMs are created, the template VHD is cached on
> > the
> > > > hypervisor.
> > > >
> > > > Now if the template VHD on the NFS is changed again and a new VM is
> > > > launched on a hypervisor that has the image cached, the new VM will
> not
> > > be
> > > > created from the updated VHD disk.
> > > >
> > > > I tried to delete the cached image on the hypervisor manually but ACS
> > > does
> > > > not like that and instead of downloading the new image error about a
> > > > missing vhd file is presented.
> > > >
> > > > Is there any way to make cloudstack intentionally refresh the
> > hypervisor
> > > > image cache?
> > > >
> > > > Regards,
> > > > Jordan
> > > >
> > >
> >
>
Re: update template cache
Posted by Wei ZHOU <us...@gmail.com>.
Hi Jordan,
As said, you can find the information of template cache on primary storage
in table `template_spool_ref` table in cloud database.
If you want to clear the template cache, just remove the corresponding
record from the database, cloudstack will copy the template from secondary
storage to primary storage.
-Wei
On Mon, 26 Sept 2022 at 13:44, jordan j <yo...@gmail.com> wrote:
> I don't have ssl keys so i cannot import it.
> Is there a better way to do it, I am all ears :)?
>
> Best regards,
> Jordan
>
>
>
> On Mon, Sep 26, 2022 at 12:10 PM Wei ZHOU <us...@gmail.com> wrote:
>
> > Hi Jordan,
> >
> > You may look at the `template_spool_ref` table in the `cloud` database.
> >
> > btw: why not register the new template ?
> >
> > -Wei
> >
> > On Mon, 26 Sept 2022 at 11:02, jordan j <yo...@gmail.com> wrote:
> >
> > > Hey everyone,
> > >
> > > Looking for automated way to deploy VHD image as a template i have done
> > > this:
> > > - create a dummy template from VM
> > > - change the dummy template VHD on the NFS with the VHD image i have
> > > prepared
> > >
> > > So far so good but as VMs are created, the template VHD is cached on
> the
> > > hypervisor.
> > >
> > > Now if the template VHD on the NFS is changed again and a new VM is
> > > launched on a hypervisor that has the image cached, the new VM will not
> > be
> > > created from the updated VHD disk.
> > >
> > > I tried to delete the cached image on the hypervisor manually but ACS
> > does
> > > not like that and instead of downloading the new image error about a
> > > missing vhd file is presented.
> > >
> > > Is there any way to make cloudstack intentionally refresh the
> hypervisor
> > > image cache?
> > >
> > > Regards,
> > > Jordan
> > >
> >
>
Re: update template cache
Posted by jordan j <yo...@gmail.com>.
I don't have ssl keys so i cannot import it.
Is there a better way to do it, I am all ears :)?
Best regards,
Jordan
On Mon, Sep 26, 2022 at 12:10 PM Wei ZHOU <us...@gmail.com> wrote:
> Hi Jordan,
>
> You may look at the `template_spool_ref` table in the `cloud` database.
>
> btw: why not register the new template ?
>
> -Wei
>
> On Mon, 26 Sept 2022 at 11:02, jordan j <yo...@gmail.com> wrote:
>
> > Hey everyone,
> >
> > Looking for automated way to deploy VHD image as a template i have done
> > this:
> > - create a dummy template from VM
> > - change the dummy template VHD on the NFS with the VHD image i have
> > prepared
> >
> > So far so good but as VMs are created, the template VHD is cached on the
> > hypervisor.
> >
> > Now if the template VHD on the NFS is changed again and a new VM is
> > launched on a hypervisor that has the image cached, the new VM will not
> be
> > created from the updated VHD disk.
> >
> > I tried to delete the cached image on the hypervisor manually but ACS
> does
> > not like that and instead of downloading the new image error about a
> > missing vhd file is presented.
> >
> > Is there any way to make cloudstack intentionally refresh the hypervisor
> > image cache?
> >
> > Regards,
> > Jordan
> >
>
Re: update template cache
Posted by Wei ZHOU <us...@gmail.com>.
Hi Jordan,
You may look at the `template_spool_ref` table in the `cloud` database.
btw: why not register the new template ?
-Wei
On Mon, 26 Sept 2022 at 11:02, jordan j <yo...@gmail.com> wrote:
> Hey everyone,
>
> Looking for automated way to deploy VHD image as a template i have done
> this:
> - create a dummy template from VM
> - change the dummy template VHD on the NFS with the VHD image i have
> prepared
>
> So far so good but as VMs are created, the template VHD is cached on the
> hypervisor.
>
> Now if the template VHD on the NFS is changed again and a new VM is
> launched on a hypervisor that has the image cached, the new VM will not be
> created from the updated VHD disk.
>
> I tried to delete the cached image on the hypervisor manually but ACS does
> not like that and instead of downloading the new image error about a
> missing vhd file is presented.
>
> Is there any way to make cloudstack intentionally refresh the hypervisor
> image cache?
>
> Regards,
> Jordan
>