Xend stop/start

Xend stop/start

[Brian Hays]

Hello,

I've noticed that if I try to restart Xend via "/etc/init.d/xend stop"
then "/etc/init.d/xend start", I won't receive any errors but then
when trying to execute "xm" commands after the restart I get error
asking if Xend is started. Is there anything else I need to make sure
gets stopped/started with Xend?


Another question ...  domU reboots - 
I can only get a domU to come back up after issuing a reboot from
within it if I then do a "xm list" command from within dom0
...otherwise the status of the domU never changes to --s-- , then to
----- , then to -b---. I currently have a cron job executing "xm list"
every couple of minutes. Is this going to be a problem? will running
that cron job cause any adverse reactions as far as performance or the
health of dom0?

Thanks,
Brian

RE: Xend stop/start

[Ian Pratt]

> I've noticed that if I try to restart Xend via "/etc/init.d/xend stop"
> then "/etc/init.d/xend start", I won't receive any errors but 
> then when trying to execute "xm" commands after the restart I 
> get error asking if Xend is started. Is there anything else I 
> need to make sure gets stopped/started with Xend?

We know about this bug -- its top of the tool bug list.
 
> Another question ...  domU reboots -
> I can only get a domU to come back up after issuing a reboot 
> from within it if I then do a "xm list" command from within 
> dom0 ...otherwise the status of the domU never changes to 
> --s-- , then to
> ----- , then to -b---. 

I'll add this one to the list to investigate. I thought it had been got.

> I currently have a cron job executing "xm list"
> every couple of minutes. Is this going to be a problem? will 
> running that cron job cause any adverse reactions as far as 
> performance or the health of dom0?

There's been reports of a slow memory leak in xend, which will be
investigated.

Thanks,
Ian

Re: Xend stop/start

[Brian Hays]

Thanks!

Is there a workaround for the xend stop/start issue that won't
interrupt the domU's?

Brian

On 4/15/05, Ian Pratt <m+Ian.Pratt@cl.cam.ac.uk> wrote:
> > I've noticed that if I try to restart Xend via "/etc/init.d/xend stop"
> > then "/etc/init.d/xend start", I won't receive any errors but
> > then when trying to execute "xm" commands after the restart I
> > get error asking if Xend is started. Is there anything else I
> > need to make sure gets stopped/started with Xend?
> 
> We know about this bug -- its top of the tool bug list.
> 
> > Another question ...  domU reboots -
> > I can only get a domU to come back up after issuing a reboot
> > from within it if I then do a "xm list" command from within
> > dom0 ...otherwise the status of the domU never changes to
> > --s-- , then to
> > ----- , then to -b---.
> 
> I'll add this one to the list to investigate. I thought it had been got.
> 
> > I currently have a cron job executing "xm list"
> > every couple of minutes. Is this going to be a problem? will
> > running that cron job cause any adverse reactions as far as
> > performance or the health of dom0?
> 
> There's been reports of a slow memory leak in xend, which will be
> investigated.
> 
> Thanks,
> Ian
>