Xen devel - Sep 2009 - Is there a way to get notification, when a domain shutdown/restarts

Hi,

I would like to write a script, which will run, every time my
(specific) domain reboots or shutdown. Is there any way, to "catch"
those events, or to be notified when it happens?

Tom

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On 09/16/2009 03:51 PM, Tom Rotenberg wrote:
> Hi,
>
> I would like to write a script, which will run, every time my
> (specific) domain reboots or shutdown. Is there any way, to
"catch"
> those events, or to be notified when it happens?
>
> Tom
>    
Hi Tom,
I am not sure about that but you can modify python script to call this 
script in this event. There should be some method to be called every 
time the domain reboots/shuts down. There you can add a call to you 
script or write it purely in python. I think it''s somewhere in 
XendDomainInfo.py file somewhere in python site-packages directory.

Michal
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> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
>    

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Well, i was looking for a solution, which won''t require me to modify
teh code, but to use an already-built mechaism for this, but i guess
none exists, so i''ll modify the code for this.

Thanks!


On Fri, Sep 18, 2009 at 5:01 AM, Michal Novotny <minovotn@redhat.com>
wrote:
> On 09/16/2009 03:51 PM, Tom Rotenberg wrote:
>>
>> Hi,
>>
>> I would like to write a script, which will run, every time my
>> (specific) domain reboots or shutdown. Is there any way, to
"catch"
>> those events, or to be notified when it happens?
>>
>> Tom
>>
>
> Hi Tom,
> I am not sure about that but you can modify python script to call this
> script in this event. There should be some method to be called every time
> the domain reboots/shuts down. There you can add a call to you script or
> write it purely in python. I think it''s somewhere in
XendDomainInfo.py file
> somewhere in python site-packages directory.
>
> Michal
>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@lists.xensource.com
>> http://lists.xensource.com/xen-devel
>>
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
>
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You could use something like the monit package to monitor the domU through a
variety of methods, ping, socket connect, etc. The config allows one to
specify multiple rules to detect and take action based upon events.
It would be trivial to monitor a domU via ping and restart it if it stopper
responding.

It''s also less code you have to maintain yourself :-)

-Bruce

On Mon, Sep 21, 2009 at 4:25 AM, Tom Rotenberg
<tom.rotenberg@gmail.com>wrote:
> Well, i was looking for a solution, which won''t require me to
modify
> teh code, but to use an already-built mechaism for this, but i guess
> none exists, so i''ll modify the code for this.
>
> Thanks!
>
>
> On Fri, Sep 18, 2009 at 5:01 AM, Michal Novotny <minovotn@redhat.com>
> wrote:
> > On 09/16/2009 03:51 PM, Tom Rotenberg wrote:
> >>
> >> Hi,
> >>
> >> I would like to write a script, which will run, every time my
> >> (specific) domain reboots or shutdown. Is there any way, to
"catch"
> >> those events, or to be notified when it happens?
> >>
> >> Tom
> >>
> >
> > Hi Tom,
> > I am not sure about that but you can modify python script to call this
> > script in this event. There should be some method to be called every
time
> > the domain reboots/shuts down. There you can add a call to you script
or
> > write it purely in python. I think it''s somewhere in
XendDomainInfo.py
> file
> > somewhere in python site-packages directory.
> >
> > Michal
> >
> >> _______________________________________________
> >> Xen-devel mailing list
> >> Xen-devel@lists.xensource.com
> >> http://lists.xensource.com/xen-devel
> >>
> >
> >
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.xensource.com
> > http://lists.xensource.com/xen-devel
> >
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
>

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