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xen-users
On Sunday 04 July 2010 00:45:56 Jonathan Tripathy wrote:
> On 03/07/10 23:34, Bart Coninckx wrote:
> > On Sunday 04 July 2010 00:28:59 Jonathan Tripathy wrote:
> >>> My problem is that I see high volume requests from some people with
> >>> little time in between the requests and about matters getting more and
> >>> more away from the subject at hand, which more than likely points to
> >>> people not taking the time to look for answers themselves on the
> >>> internet but choosing the easy path of free advice on a mailing list.
> >>> This community is about helping each other out after having done the
> >>> necessary research oneself. At least that's how I see it. Mind you,
> >>> I'm at risk stating this, because I frequently am scratching my head in
> >>> the face of nasty problems and challenges with tight deadlines, but I
> >>> try to self reliant to the max and only if I'm at the end of my wits, I
> >>> will consult the list.
> >>>
> >>> No chill pills needed.
> >>
> >> FYI, I started a new topic as I had already discovered how to use solve
> >> my ionice problem (I used dstat). Which is why I then moved onto how to
> >> "prioritise" the DomU regarding disk usage, and I know that a lot of
> >> people on this list do that for their customers. I actually did do my
> >> own research, and in fact I will point you to an excellent PDF (which is
> >> taken from the book I'm currently reading):
> >> http://nostarch.com/download/xen_ch7.pdf (Page 11).
> >>
> >> Please don't jump to the conclusion that I havn't done my own research,
> >> because I have.
> >
> > Well, not really in bash scripting it seems.
>
> If there is anyone else on this list that is willing to share some
> knowledge with a newbie, then any help would very much be appreciated.
>
> My current train of thought is to write a script that runs "xm list
> $domname", then parses for the dom ID. Then does a "ps aux | grep
> "$domid.xvda" " and parses for the PID. Then runs ionice with the found
> PID as a param.
>
> Is there a nice place that I can call this script from within Xen at
> each DomU boot? It would be nice to not have to make a wrapper script
> which first runs "xm create" and then does the above. Since I wish to
> run lots of DomUs for customers, this becomes a management issue. Really
> what I need to find, is a place similar to the vif scripts, but ones
> that run after the DomU has started (as the correct disk process needs
> to be running)
>
> Thanks
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
>
If you don't want to use a wrapper script, you will need to hack "xm". Python
knowledge required though.
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