[Linux-HA] Change the cib.xml under a live cluster

[Andrew Beekhof]

On 11/8/06, Zachár Balázs <zachar at direkt-kfki.hu> wrote:
> I try this with a test cluster...
> There was only one resource (an IPaddr) in a resource group.
> I would like to modify the IP address from 10.128.43.133 to 10.128.43.134.
>
>  I make these steps (I attached the files):
>
> 1. "cibadmin -Q > /tmp/save.xml"
> 2. "cp /tmp/save.xml /tmp/modifiedcib.xml" and I modified it.
> 3. "crm_verify -VX /tmp/modifiedcib.xml" It was good.
> 4. "cibadmin -R -x /tmp/modifiedcib.xml" There wasn't any error message.
>
> It was success. The ip address Is changed! (I see it: ifconfig)
>
> BUT
> 5. "cibadmin -Q > /tmp/aftermodsave.xml"  There was the old 133 IP in
> the lrm section!
> 6:cl-test-a:/tmp # crm_resource -l
>         * group_1
>             * IPaddr_10_128_43_134
>         * IPaddr_10_128_43_133

thats because you changed the id of the resource.
if you set the stop_orphan_resources cluster option to true it should go away.

this is a good argument for not including the IP address in the name
of IP resources

>
> 7: cl-test-a:/tmp # crm_resource -Wr IPaddr_10_128_43_133
>     resource IPaddr_10_128_43_133 is NOT running
>
>
> I think, It works fine but the old IP address in the CIB is disturbed me.
>
>
> Thanks,
> Balázs
>
>
>
> Andrew Beekhof írta:
> > Please never, never ever, not in a million years, change the cib.xml
> > file when the cluster is active.
> >
> > We specifically try to detect this, thats how bad an idea it is.
> >
> > If you want to edit the XML by hand, please get a copy of it by running:
> >    cibadmin -Q > ~/saved.cib.xml
> >
> > then you may safely edit ~/saved.cib.xml and (when you're ready)
> > upload it again with:
> >    cat ~/saved.cib.xml | cibadmin -R (plus any other options you want
> > to add)
> >
> > WARNING: continuing to edit the live cib.xml file while the cluster is
> > running may result in me tracking you down and hitting you over the
> > head with a large hammer :)
> >
> >
>
>
>
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>
>